Kerin
type: MusicGroup
description: Kerin is a surname. Notable people with the surname include: John F. Kerin (1944–2006), Australian physician and professor John Kerin (1937–2023), Australian economist and politician Nora Kerin (
popularity: 4
followers: 17
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb88089e398436365f30dd0d9a86556449658fcc0fcf55e0caf13f6d97a1cf6da
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953924
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953924
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1cd8ed42-be72-4005-b094-f0f92d850338.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1cd8ed42-be72-4005-b094-f0f92d850338.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1cd8ed42-be72-4005-b094-f0f92d850338
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T09:52:28Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88089e398436365f30dd0d9a86556449658fcc0fcf55e0caf13f6d97a1cf6da. Chain 2 (Bitcoin): anchored in block 953924 (2026-06-16T09:52:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1cd8ed42-be72-4005-b094-f0f92d850338.json and https://artists.proofprofile.net/proofs/artist/1cd8ed42-be72-4005-b094-f0f92d850338.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T09:52:28Z
album: Postal
  type: MusicAlbum
  date published: 2025-04-11
  track: Postal
    type: MusicRecording
    duration: PT2M42S
    duration ms: 162440
    explicit: true
    by artist: Kerin
    in album: Postal
      type: MusicAlbum
      date published: 2025-04-11
    isrc code: QZGLM2596199
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T01:36:48+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbfba8fc66562c3ed2d09fae533fb6f3e0d047f5bd3646e791ceecb316c892b9f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2596199
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfba8fc66562c3ed2d09fae533fb6f3e0d047f5bd3646e791ceecb316c892b9f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2596199.
      date published: 2026-07-04T10:04:33Z
    audio: Postal
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 97.217
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.66
      additional property: Energy
        type: PropertyValue
        value: 0.502
      additional property: Speechiness
        type: PropertyValue
        value: 0.103
      additional property: Acousticness
        type: PropertyValue
        value: 0.825
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.607
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.925
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.84
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Pisces (Dreams)
  type: MusicAlbum
  date published: 2025-05-27
album: Pisces (Dreams) [Slowed]
  type: MusicAlbum
  date published: 2025-06-07