Alex Tambu
type: MusicGroup
popularity: 2
followers: 51
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc4d43fddef196d7e0f539cf2ee30b8b078309daedb5f1e5d5d21468d56452c60
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954500
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9c76bb3b-28cf-404a-a6a3-6684d1bbb2e7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9c76bb3b-28cf-404a-a6a3-6684d1bbb2e7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9c76bb3b-28cf-404a-a6a3-6684d1bbb2e7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T04:47:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc4d43fddef196d7e0f539cf2ee30b8b078309daedb5f1e5d5d21468d56452c60","name":"Alex Tambu","registered_at":"2026-06-20T04:14:03Z","symbol":"NIM1507941","token_address":"0xdea9515a155bcddfd5525eb7500d0e56468db28a","type":"artist","uuid":"9c76bb3b-28cf-404a-a6a3-6684d1bbb2e7"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d43fddef196d7e0f539cf2ee30b8b078309daedb5f1e5d5d21468d56452c60. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c76bb3b-28cf-404a-a6a3-6684d1bbb2e7.json and https://artists.proofprofile.net/proofs/artist/9c76bb3b-28cf-404a-a6a3-6684d1bbb2e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T04:47:29Z
  text: {"copyright_id":"0xc4d43fddef196d7e0f539cf2ee30b8b078309daedb5f1e5d5d21468d56452c60","name":"Alex Tambu","registered_at":"2026-06-20T04:14:03Z","symbol":"NIM1507941","token_address":"0xdea9515a155bcddfd5525eb7500d0e56468db28a","type":"artist","uuid":"9c76bb3b-28cf-404a-a6a3-6684d1bbb2e7"}
album: Mesa
  type: MusicAlbum
  date published: 2024-08-26
album: Mesa II
  type: MusicAlbum
  date published: 2024-09-17
album: Random Thoughts
  type: MusicAlbum
  date published: 2024-11-15
album: Memento Mori
  type: MusicAlbum
  date published: 2025-03-06
album: Variation on a creole theme
  type: MusicAlbum
  date published: 2025-04-17
album: Sailor
  type: MusicAlbum
  date published: 2025-05-14
  track: Sailor
    type: MusicRecording
    duration: PT4M42S
    duration ms: 282058
    explicit: false
    by artist: Alex Tambu
    in album: Sailor
      type: MusicAlbum
      date published: 2025-05-14
    isrc code: QZNWW2585817
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T12:46:11+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xcd90dc7cbd2ff1053812b636483e93859771c5d8fc37376bc12c9163fc34bd70
    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/QZNWW2585817
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd90dc7cbd2ff1053812b636483e93859771c5d8fc37376bc12c9163fc34bd70. 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/QZNWW2585817.
      date published: 2026-07-03T19:59:51Z
    audio: Sailor
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 76.796
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 1
      additional property: Danceability
        type: PropertyValue
        value: 0.121
      additional property: Energy
        type: PropertyValue
        value: 0.022
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.994
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.909
      additional property: Liveness
        type: PropertyValue
        value: 0.1
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.072
      additional property: Loudness (dB)
        type: PropertyValue
        value: -30.74
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major