The Grus
type: MusicGroup
genre: trip hop
popularity: 7
followers: 718
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1fa6417128b37799f1acd762dc0a2659e2593474c529b0326cdc2d7721d7941f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953899
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953899
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/136ff5b4-f49b-4c87-b0b6-6992b63ab861.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/136ff5b4-f49b-4c87-b0b6-6992b63ab861.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/136ff5b4-f49b-4c87-b0b6-6992b63ab861
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:37:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1fa6417128b37799f1acd762dc0a2659e2593474c529b0326cdc2d7721d7941f","name":"The Grus","registered_at":"2026-06-15T20:23:28Z","symbol":"NIM0821709","token_address":"0x090b0de3caf68edc9950ea5d23ae2b0058080f8d","type":"artist","uuid":"136ff5b4-f49b-4c87-b0b6-6992b63ab861"}
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 0x1fa6417128b37799f1acd762dc0a2659e2593474c529b0326cdc2d7721d7941f. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/136ff5b4-f49b-4c87-b0b6-6992b63ab861.json and https://artists.proofprofile.net/proofs/artist/136ff5b4-f49b-4c87-b0b6-6992b63ab861.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T06:37:25Z
  text: {"copyright_id":"0x1fa6417128b37799f1acd762dc0a2659e2593474c529b0326cdc2d7721d7941f","name":"The Grus","registered_at":"2026-06-15T20:23:28Z","symbol":"NIM0821709","token_address":"0x090b0de3caf68edc9950ea5d23ae2b0058080f8d","type":"artist","uuid":"136ff5b4-f49b-4c87-b0b6-6992b63ab861"}
album: The Great Nest
  type: MusicAlbum
  date published: 2014-11-20
album: Nest
  type: MusicAlbum
  date published: 2015-04-30
  track: A Secret Place
    type: MusicRecording
    duration: PT3M55S
    duration ms: 235534
    explicit: false
    by artist: The Grus
    in album: Nest
      type: MusicAlbum
      date published: 2015-04-30
    genre: trip hop
    isrc code: US7VG1504395
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T14:50:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbc8345584c5e2d98d06c68b1907a1ea2bea9ac89f8ce8946ef3666b40b9ab6b8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958749
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958749
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1504395
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T17:51:30Z
    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 0xbc8345584c5e2d98d06c68b1907a1ea2bea9ac89f8ce8946ef3666b40b9ab6b8. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:51:30Z), 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/US7VG1504395.
      date published: 2026-07-19T17:51:30Z
    audio: A Secret Place
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 220.029
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.608
      additional property: Energy
        type: PropertyValue
        value: 0.268
      additional property: Speechiness
        type: PropertyValue
        value: 0.061
      additional property: Acousticness
        type: PropertyValue
        value: 0.101
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.806
      additional property: Liveness
        type: PropertyValue
        value: 0.129
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.105
      additional property: Loudness (dB)
        type: PropertyValue
        value: -18.123
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Piano Session
  type: MusicAlbum
  date published: 2015-12-01
album: Nest + Ivan Tea
  type: MusicAlbum
  date published: 2016-03-02
album: Nest + Ivan Tea
  type: MusicAlbum
  date published: 2016-03-02
album: Piano Session 2
  type: MusicAlbum
  date published: 2016-04-12
album: Harvest
  type: MusicAlbum
  date published: 2016-11-01
album: Piano Session 3
  type: MusicAlbum
  date published: 2017-02-02
album: Sometimes
  type: MusicAlbum
  date published: 2018-11-09
album: Best of (2014-2024)
  type: MusicAlbum
  date published: 2024-04-29
album: Novemberain
  type: MusicAlbum
  date published: 2025-07-03