Ipfs ipns

Author: m | 2025-04-25

Using JS-IPFS for ipns name publish. Help. js-ipfs, ipns. 1: 363: Septem Web API using IPFS/IPNS. Help. ipfs-cluster, ipns. 5: 278: Septem IPFS INFURA -

IPFS URL Shortener - ipns - IPFS Forums

CIDs are like commit hashes in Git, which point to a snapshot of the files in the repository.::: calloutAn IPNS name can point to any arbitrary content path (/ipfs/ or /ipns/), including another IPNS name or DNSLink path. However, it most commonly points to a fully resolved and immutable path, i.e. /ipfs/[CID].:::How IPNS worksAnatomy of an IPNS nameA name in IPNS is the hash of a public key. It is associated with an IPNS record containing the content path (/ipfs/CID) it links to and other information such as the expiration, the version number, and a cryptographic signature signed by the corresponding private key. New records can be signed and published at any time by the holder of the private key.For example, the following is an IPNS name represented by a CIDv1 of public key: k51qzi5uqu5dlvj2baxnqndepeb86cbk3ng7n3i46uzyxzyqj2xjonzllnv0v8.Note: Kubo uses the self key (ed25519 private key used for the PeerID) as the default IPNS name. But you can generate multiple keys via ipfs key gen, and use them for managing multiple IPNS names.How IPNS names relate to content pathsIPNS record can point at an immutable or a mutable path. The meaning behind CID used in a path depends on used namespace:/ipfs/ – an immutable content on IPFS (since the CID contains a multihash)/ipns/ – a mutable, cryptographic IPNS name which corresponds to a libp2p public key.The following is a useful mental model for understanding the difference between the two: IPFS; IPFS-- immutable pointer -->content;"> graph LR; IPNS-- mutable pointer -->IPFS; IPFS-- immutable pointer

IPNS and CID changed - IPFS - IPFS Forums

Title description IPNS (InterPlanetary Name System) Learn about mutability in IPFS, InterPlanetary Name System (IPNS), and how it can be used in conjunction with IPFS. InterPlanetary Name System (IPNS)InterPlanetary Name System (IPNS)Mutability in IPFSHow IPNS worksAnatomy of an IPNS nameHow IPNS names relate to content pathsIPNS names are self-certifyingCommon IPNS operationsIPNS is transport agnosticIPNS over the DHTIPNS over PubSubPublishing IPNS records over PubSub lifecycleTradeoffs between consistency vs. availabilityIPNS record validityIPNS record TTLPractical considerationsIPNS in practiceResolving IPNS names using IPFS gatewaysPublishing IPNS namesAlternatives to IPNSFurther ResourcesMutability in IPFSContent addressing in IPFS is by nature immutable: when you add a file to IPFS, it creates a hash from the data, with which the CID is constructed. Changing a file changes its hash, and consequently its CID which is used as an address.Yet, there are many situations where content-addressed data needs to be regularly updated, for example, when publishing a website that frequently changes. It would be impractical to share a new CID every time you update the website. With mutable pointers, you can share the address of the pointer once, and update the pointer – to the new CID – every time you publish a change.The InterPlanetary Name System (IPNS) is a system for creating such mutable pointers to CIDs known as names or IPNS names. IPNS names can be thought of as links that can be updated over time, while retaining the verifiability of content addressing.By analogy, IPNS names are like tags in git, which can be updated over time, and

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That the IPNS name can be resolved even when there's high node churn (nodes coming and going.)By default, Kubo will republish IPNS records to the DHT based on the Ipns.RepublishPeriod configuration which defaults to 4 hours. Republishing involves two steps:Creating an updated IPNS record with the validity timestamp field updated (by default based on Ipns.RecordLifetime), and signing it with the private key. The sequence number will only be incremented if the content path changes.Publish the IPNS record to the DHTNote: See the DHT documentation for more information on the lifecycle of GETs and PUTs of IPNS records.It's worth noting that publishing and resolving IPNS names using the DHT can be slow. This is because multiple records need to be found to ensure the latest version (record with the highest sequence), which involves round trips to multiple nodes.IPNS over PubSubIPNS over PubSub uses the Libp2p PubSub to publish records and resolve names amongst interested peers.This is achieved by deriving the PubSub topic name from the IPNS name so that each IPNS name has a unique topic.Because PubSub doesn't have the notion of persistence (messages are ephemeral and dropped after propagation), IPNS over PubSub adds a persistence layer to ensure that IPNS records are always available to the network.In Kubo, IPNS over PubSub is not enabled by default and can be enabled using the Ipns.UsePubsub configuration.Initial operations, e.g. resolving or publishing an IPNS name for the first time can take time as they involve a roundtrip to the DHT (to lookup or. Using JS-IPFS for ipns name publish. Help. js-ipfs, ipns. 1: 363: Septem Web API using IPFS/IPNS. Help. ipfs-cluster, ipns. 5: 278: Septem IPFS INFURA - Using JS-IPFS for ipns name publish. Help. js-ipfs, ipns. 1: 363: Septem Web API using IPFS/IPNS. Help. ipfs-cluster, ipns. 5: 278: Septem IPFS INFURA - Manually upload file. IPFS. 6: 2112: Janu Connecting to remote ipfs node. js-ipfs. js-ipfs. 6: 1315: J Is it possible use IPNS module with infura

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-->content; Loading contentIPNS = **Pointer => content">IPFS = immutable *Pointer => contentIPNS = **Pointer => contentIPNS names are essentially pointers (IPNS names) to pointers (IPFS CIDs) whereas IPFS CIDs are immutable (because they're derived from the content) pointers to content.IPNS names are self-certifyingIPNS names are self-certifying. This means that an IPNS record contains all the information necessary to certify its authenticity. IPNS achieves this using public and private key pairs:Each IPNS name corresponds to a key pairThe IPNS name is a CID with a multihash of the public keyThe IPNS record contains the public key and signature, allowing anyone to verify that the record was signed by the private key holder.This self-certifying nature gives IPNS several benefits not present in hierarchical and consensus systems such as DNS, and blockchain identifiers. Notably, IPNS records can come from anywhere, not just a particular service/system, and it is very fast and easy to confirm a record is authentic.Common IPNS operationsAs a user or developer using IPNS for naming, there are three common operations worth understanding:Updating/Creating an IPNS record: refers to the creation of an IPNS record and signing it with a private key.Publishing an IPNS record: advertising the IPNS record so that other nodes can resolve it. Details depend on the transport.Resolving an IPNS name: Resolving an IPNS name to a content path.IPNS is transport agnostic "IPNS Record"] subgraph Routing Publisher Resolver Local[("Local store")] subgraph Transports PubSub[(PubSub)] DHT[(DHT)] end end Resolver-- resolve -->Record-- "(re)publish" -->Publisher Publisher-- PUT -->DHT-. GET .->Resolver Publisher-- PUT -->PubSub-.

ipfs/helia-ipns: An implementation of IPNS for Helia - GitHub

Update.Practically, levers within your control determine where your IPNS name is on the spectrum between consistency and availability:IPNS record validity: longer validity will veer towards availability. Moreover, longer validity will reduce the dependence on the key holder (which for most purposes is stored on a single machine and rare shared) since the record can continue to persist without requiring the private key holder to sign a new record. Another benefit of a longer validity is that the transport can be delegated to other nodes or services (such as w3name), without compromising the private key.IPNS record TTL: longer TTL trades update propagation speed for better page load performance and resiliency.Transport mechanism: the DHT veers towards consistency while PubSub veers towards availability. However, with Kubo, IPNS names are always published to the DHT, while PubSub is opt-in. For most purposes, enabling PubSub is a net gain unless you hit the upper limit of connections as a result of too many PubSub subscriptions.IPNS in practiceResolving IPNS names using IPFS gatewaysIPNS names can be resolved by IPFS gateways in a trusted fashion using both path resolution and subdomain resolution style:Path resolution: resolution: IPNS resolution via an IPFS gateway is trusted (in the sense of trusting the gateway) which means you delegate IPNS resolution to the gateway without any means to verify the authenticity response you get, i.e the content path and signature of the IPNS record.Publishing IPNS namesSee the following guide on publishing IPNS names with Kubo and Helia.Alternatives to IPNSIPNS is not the

IPNS pubsub and initial resolution - IPFS - IPFS Forums

Publish provider records for the topic).After the subscription to the topic is established, PubSub usually improves both publishing and resolving times of IPNS by relying on interested peers for both operations.It should be noted that there's an upper limit to the number of unique IPNS names you can resolve over PubSub, because for each name, a subscription is created which opens several (by default 6) network connections to mesh members.Publishing IPNS records over PubSub lifecycleCreate a record and sign it.Calculate PubSub topic name from IPNS name.Join the topic by querying the DHT for the topic's provider records.Publish the IPNS record to the topic.Whenever a new peer joins the topic (specifically your mesh), ask them for the record. If they respond with a newer record, update it locally and publish the updated record to the topic.Periodically (by default every 10 minutes) rebroadcast the IPNS record.Steps 5 and 6 describe from a high level how IPNS record persistence is layered over PubSub by ensuring continuous propagation of the IPNS record in the face of node churn (nodes dropping in and out of the network).Further details about the IPNS over PubSub protocol can be found in the IPNS over PubSub SpecTradeoffs between consistency vs. availabilityThe self-certifying nature of IPNS comes with an inherent tradeoff between consistency and availability.Consistency means ensuring that users resolve to the latest published IPNS record for the name (with the highest sequence number) at the cost of potentially not being able to resolve.Availability means resolving to a valid IPNS. Using JS-IPFS for ipns name publish. Help. js-ipfs, ipns. 1: 363: Septem Web API using IPFS/IPNS. Help. ipfs-cluster, ipns. 5: 278: Septem IPFS INFURA -