Telma César
type: MusicGroup
popularity: 3
followers: 185
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe33be841a26fe91569eb5a9e3c07af9611fc4dcf776e56ba59c28f551d4ead52
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9d3118b9-4764-4591-aaab-a25b37b462b6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9d3118b9-4764-4591-aaab-a25b37b462b6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9d3118b9-4764-4591-aaab-a25b37b462b6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe33be841a26fe91569eb5a9e3c07af9611fc4dcf776e56ba59c28f551d4ead52","name":"Telma César","registered_at":"2026-06-20T04:27:39Z","symbol":"NIM1511833","token_address":"0x9f920186e3eacc640b08a22c6f0b2710b33294ae","type":"artist","uuid":"9d3118b9-4764-4591-aaab-a25b37b462b6"}
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 0xe33be841a26fe91569eb5a9e3c07af9611fc4dcf776e56ba59c28f551d4ead52. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d3118b9-4764-4591-aaab-a25b37b462b6.json and https://artists.proofprofile.net/proofs/artist/9d3118b9-4764-4591-aaab-a25b37b462b6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
  text: {"copyright_id":"0xe33be841a26fe91569eb5a9e3c07af9611fc4dcf776e56ba59c28f551d4ead52","name":"Telma César","registered_at":"2026-06-20T04:27:39Z","symbol":"NIM1511833","token_address":"0x9f920186e3eacc640b08a22c6f0b2710b33294ae","type":"artist","uuid":"9d3118b9-4764-4591-aaab-a25b37b462b6"}
album: NO BALANÇO DO MAR
  type: MusicAlbum
  date published: 2023-06-29
album: Encantamento do Mar
  type: MusicAlbum
  date published: 2023-09-23
album: Cantiga Prá Chegar
  type: MusicAlbum
  date published: 2023-12-11
album: TAO DAS BAIANAS
  type: MusicAlbum
  date published: 2024-01-06
album: Coco Enganchado
  type: MusicAlbum
  date published: 2025-01-18
  track: Coco Enganchado
    type: MusicRecording
    duration: PT2M41S
    duration ms: 161605
    explicit: false
    by artist: Telma César
    in album: Coco Enganchado
      type: MusicAlbum
      date published: 2025-01-18
    isrc code: BKTET2400001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T09:06:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xfe5e6a25fd284a0a3860e03d4b97e58b6df3dd9b75461e9ac0804c2e67bd6fa7
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKTET2400001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0xfe5e6a25fd284a0a3860e03d4b97e58b6df3dd9b75461e9ac0804c2e67bd6fa7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BKTET2400001.
      date published: 2026-07-05T10:01:46Z
    audio: Coco Enganchado
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 101.815
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.671
      additional property: Energy
        type: PropertyValue
        value: 0.515
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.323
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.101
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.736
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.336
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Minor