Rei Tr
type: MusicGroup
popularity: 2
followers: 20
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0b970db240a6e2cb0dbdcf631bb04b3912ec6c2dfec135ef07aba816c5a479d0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b55b36ea-9aa5-4f78-8919-f55112f91c88.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b55b36ea-9aa5-4f78-8919-f55112f91c88.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b55b36ea-9aa5-4f78-8919-f55112f91c88
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0b970db240a6e2cb0dbdcf631bb04b3912ec6c2dfec135ef07aba816c5a479d0","name":"Rei Tr","registered_at":"2026-06-20T14:36:15Z","symbol":"NIM1631560","token_address":"0xc03c75129053870d68c47a1c3a6dbdcd9c02d057","type":"artist","uuid":"b55b36ea-9aa5-4f78-8919-f55112f91c88"}
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 0x0b970db240a6e2cb0dbdcf631bb04b3912ec6c2dfec135ef07aba816c5a479d0. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b55b36ea-9aa5-4f78-8919-f55112f91c88.json and https://artists.proofprofile.net/proofs/artist/b55b36ea-9aa5-4f78-8919-f55112f91c88.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x0b970db240a6e2cb0dbdcf631bb04b3912ec6c2dfec135ef07aba816c5a479d0","name":"Rei Tr","registered_at":"2026-06-20T14:36:15Z","symbol":"NIM1631560","token_address":"0xc03c75129053870d68c47a1c3a6dbdcd9c02d057","type":"artist","uuid":"b55b36ea-9aa5-4f78-8919-f55112f91c88"}
album: Vem cá, se solta
  type: MusicAlbum
  date published: 2025-07-26
  track: Vem cá, se solta
    type: MusicRecording
    duration: PT2M37S
    duration ms: 157037
    explicit: true
    by artist: Rei Tr
    in album: Vem cá, se solta
      type: MusicAlbum
      date published: 2025-07-26
    isrc code: CALVP2551797
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T05:28:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x63a6506359ec4b7f869d52717e2a93aaf705e1875d8c94624669e607b70e55eb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958832
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958832
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALVP2551797
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T08:31:00Z
    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 0x63a6506359ec4b7f869d52717e2a93aaf705e1875d8c94624669e607b70e55eb. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:31:00Z), 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/CALVP2551797.
      date published: 2026-07-20T08:31:00Z
    audio: Vem cá, se solta
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 162.08
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.877
      additional property: Energy
        type: PropertyValue
        value: 0.627
      additional property: Speechiness
        type: PropertyValue
        value: 0.257
      additional property: Acousticness
        type: PropertyValue
        value: 0.045
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.007
      additional property: Liveness
        type: PropertyValue
        value: 0.091
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.675
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.47
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major