Grupo C
type: MusicGroup
popularity: 4
followers: 993
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe424a631c43dd7b44bfcbedc32ea07f9240431a9d1a2844a35e12609d441fc48
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ffd64f9a-462c-4d5b-bc3e-c99bfe5c720b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ffd64f9a-462c-4d5b-bc3e-c99bfe5c720b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ffd64f9a-462c-4d5b-bc3e-c99bfe5c720b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe424a631c43dd7b44bfcbedc32ea07f9240431a9d1a2844a35e12609d441fc48","name":"Grupo C","registered_at":"2026-06-21T18:57:36Z","symbol":"NIM2004529","token_address":"0x825f15fabf64bb5c5af100a31e267dc5dd304d7d","type":"artist","uuid":"ffd64f9a-462c-4d5b-bc3e-c99bfe5c720b"}
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 0xe424a631c43dd7b44bfcbedc32ea07f9240431a9d1a2844a35e12609d441fc48. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ffd64f9a-462c-4d5b-bc3e-c99bfe5c720b.json and https://artists.proofprofile.net/proofs/artist/ffd64f9a-462c-4d5b-bc3e-c99bfe5c720b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xe424a631c43dd7b44bfcbedc32ea07f9240431a9d1a2844a35e12609d441fc48","name":"Grupo C","registered_at":"2026-06-21T18:57:36Z","symbol":"NIM2004529","token_address":"0x825f15fabf64bb5c5af100a31e267dc5dd304d7d","type":"artist","uuid":"ffd64f9a-462c-4d5b-bc3e-c99bfe5c720b"}
album: Busco Mi Destino
  type: MusicAlbum
  date published: 2025-04-05
album: Busco Mi Destino
  type: MusicAlbum
  date published: 2025-04-05
album: 7 años después
  type: MusicAlbum
  date published: 2025-04-11
album: 7 años después
  type: MusicAlbum
  date published: 2025-04-11
track: Quiero Escribir Tu Nombre

Quiero Escribir Tu Nombre
type: MusicRecording
duration: PT3M16S
duration ms: 196835
explicit: false
by artist: Grupo C
in album: Lo Mejor De Los 60 Y 70
  type: MusicAlbum
  date published: 1996-01-24
isrc code: US2BR9701406
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T08:12:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf144f426375d0ce885c6f802aa9b79dd7a5f9cc083ee5b4d0459997eb1e3b695
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2BR9701406
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956302
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:30:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf144f426375d0ce885c6f802aa9b79dd7a5f9cc083ee5b4d0459997eb1e3b695. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US2BR9701406.
  date published: 2026-07-02T03:55:08Z
audio: Quiero Escribir Tu Nombre
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.184
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.582
  additional property: Energy
    type: PropertyValue
    value: 0.721
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.085
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.133
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.505
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.828
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major