Sergio Sa
type: MusicGroup
genre: lullaby
popularity: 8
followers: 195
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcba7b7be75c1bc03373118fcf0f0db860bace8cf611082988f1f6f7cdedae6a6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954063
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954063
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/47b9d511-9324-4f73-8dcf-607a3686927b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/47b9d511-9324-4f73-8dcf-607a3686927b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/47b9d511-9324-4f73-8dcf-607a3686927b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:49:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcba7b7be75c1bc03373118fcf0f0db860bace8cf611082988f1f6f7cdedae6a6","name":"Sergio Sa","registered_at":"2026-06-16T14:36:07Z","symbol":"NIM1082524","token_address":"0x4771163fffa9567e0e59a04301132c7e0b50f33c","type":"artist","uuid":"47b9d511-9324-4f73-8dcf-607a3686927b"}
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 0xcba7b7be75c1bc03373118fcf0f0db860bace8cf611082988f1f6f7cdedae6a6. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/47b9d511-9324-4f73-8dcf-607a3686927b.json and https://artists.proofprofile.net/proofs/artist/47b9d511-9324-4f73-8dcf-607a3686927b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xcba7b7be75c1bc03373118fcf0f0db860bace8cf611082988f1f6f7cdedae6a6","name":"Sergio Sa","registered_at":"2026-06-16T14:36:07Z","symbol":"NIM1082524","token_address":"0x4771163fffa9567e0e59a04301132c7e0b50f33c","type":"artist","uuid":"47b9d511-9324-4f73-8dcf-607a3686927b"}
album: Sons da Paz, Vol. 2 (Música para Relaxamento e Meditação)
  type: MusicAlbum
  date published: 1998-10-05
album: Sérgio S/A.
  type: MusicAlbum
  date published: 2017-03-10
album: Ecos do Amanhã
  type: MusicAlbum
  date published: 2017-05-11
album: I'm Paul Bryan
  type: MusicAlbum
  date published: 2017-05-11
track: Gruta das Formigas

Gruta das Formigas
type: MusicRecording
duration: PT3M36S
duration ms: 216840
explicit: false
by artist: Sergio Sa
in album: Plunct! Plact! Zum
  type: MusicAlbum
  date published: 1983-01-01
popularity: 23
isrc code: BRSGL8300173
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T05:34:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd07d314bb7ed53cad352b5c9e6d1bcb7a0dd0bbf7b305d1f8fcf0b66a6113c1a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSGL8300173
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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: 953520
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T13:32:09+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 0xd07d314bb7ed53cad352b5c9e6d1bcb7a0dd0bbf7b305d1f8fcf0b66a6113c1a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRSGL8300173.
  date published: 2026-06-13T13:32:09Z
audio: Gruta das Formigas
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.324
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.736
  additional property: Energy
    type: PropertyValue
    value: 0.84
  additional property: Speechiness
    type: PropertyValue
    value: 0.088
  additional property: Acousticness
    type: PropertyValue
    value: 0.191
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.377
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.742
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.089
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major