Stamps Quartet
type: MusicGroup
genre: southern gospel
popularity: 6
followers: 700
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3c1881c86108227934c50687be3dc4b88959b5002fa7700fcae3d1af90f3e6a0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953918
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953918
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1ad09324-18f3-4c7c-b2a6-50fb943f196b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1ad09324-18f3-4c7c-b2a6-50fb943f196b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1ad09324-18f3-4c7c-b2a6-50fb943f196b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T08:55:04Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3c1881c86108227934c50687be3dc4b88959b5002fa7700fcae3d1af90f3e6a0","name":"Stamps Quartet","registered_at":"2026-06-15T22:54:52Z","symbol":"NIM0857806","token_address":"0x1fb0c8ea3fe44b4803b8c94947aee9313d758cb6","type":"artist","uuid":"1ad09324-18f3-4c7c-b2a6-50fb943f196b"}
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 0x3c1881c86108227934c50687be3dc4b88959b5002fa7700fcae3d1af90f3e6a0. Chain 2 (Bitcoin): anchored in block 953918 (2026-06-16T08:55:04Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ad09324-18f3-4c7c-b2a6-50fb943f196b.json and https://artists.proofprofile.net/proofs/artist/1ad09324-18f3-4c7c-b2a6-50fb943f196b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T08:55:04Z
  text: {"copyright_id":"0x3c1881c86108227934c50687be3dc4b88959b5002fa7700fcae3d1af90f3e6a0","name":"Stamps Quartet","registered_at":"2026-06-15T22:54:52Z","symbol":"NIM0857806","token_address":"0x1fb0c8ea3fe44b4803b8c94947aee9313d758cb6","type":"artist","uuid":"1ad09324-18f3-4c7c-b2a6-50fb943f196b"}
album: Colorful Stamps Quartet
  type: MusicAlbum
  date published: 2015-06-12
  track: Old Country Church
    type: MusicRecording
    duration: PT2M42S
    duration ms: 162453
    explicit: false
    by artist: Stamps Quartet
    in album: Colorful Stamps Quartet
      type: MusicAlbum
      date published: 2015-06-12
    genre: southern gospel
    isrc code: QMBZ91529716
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T10:05:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa928360c92c71240d79bd782ec420ae53385114aeaa0bb4c691f4d9967d8caf9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91529716
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0xa928360c92c71240d79bd782ec420ae53385114aeaa0bb4c691f4d9967d8caf9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QMBZ91529716.
      date published: 2026-07-03T19:59:51Z
    audio: Old Country Church
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.086
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.587
      additional property: Energy
        type: PropertyValue
        value: 0.549
      additional property: Speechiness
        type: PropertyValue
        value: 0.041
      additional property: Acousticness
        type: PropertyValue
        value: 0.944
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.272
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.939
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.45
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Signs of a Good Life
  type: MusicAlbum
  date published: 2015-06-12