Sergio Tannus
type: MusicGroup
genre: lullaby
popularity: 12
followers: 388
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0f20216ce2671235b9c363a445aa6ff8dafc7218552fd378d66332eb186b3e05
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953617
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953617
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1be5534d-f41e-4c65-b027-f580047f061c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1be5534d-f41e-4c65-b027-f580047f061c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1be5534d-f41e-4c65-b027-f580047f061c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T09:00:45Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0f20216ce2671235b9c363a445aa6ff8dafc7218552fd378d66332eb186b3e05","name":"Sergio Tannus","registered_at":"2026-06-14T07:21:55Z","symbol":"NIM0379903","token_address":"0x8986489f69df924832975de0f9719991371c9678","type":"artist","uuid":"1be5534d-f41e-4c65-b027-f580047f061c"}
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 0x0f20216ce2671235b9c363a445aa6ff8dafc7218552fd378d66332eb186b3e05. Chain 2 (Bitcoin): anchored in block 953617 (2026-06-14T09:00:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1be5534d-f41e-4c65-b027-f580047f061c.json and https://artists.proofprofile.net/proofs/artist/1be5534d-f41e-4c65-b027-f580047f061c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T09:00:45Z
  text: {"copyright_id":"0x0f20216ce2671235b9c363a445aa6ff8dafc7218552fd378d66332eb186b3e05","name":"Sergio Tannus","registered_at":"2026-06-14T07:21:55Z","symbol":"NIM0379903","token_address":"0x8986489f69df924832975de0f9719991371c9678","type":"artist","uuid":"1be5534d-f41e-4c65-b027-f580047f061c"}
album: Son Brasilego
  type: MusicAlbum
  date published: 2012
album: Son Brasilego
  type: MusicAlbum
  date published: 2012-12-11
album: Son Brasilego
  type: MusicAlbum
  date published: 2012-12-12
album: Alegría!
  type: MusicAlbum
  date published: 2015-05-12
track: O Galo Canta
  type: MusicRecording
  duration: PT3M1S
  duration ms: 181400
  explicit: false
  by artist: Uxía
  by artist: Chus Domínguez
  by artist: Ana Senlle
  by artist: Sergio Tannus
  by artist: Santi Cribeiro
  by artist: Oli Xiráldez
  by artist: Pablo Ces
  by artist: Andrés Giráldez
  in album: Xiqui Xoque, Fiú Fiú! María Fumaça
    type: MusicAlbum
    date published: 2014-05-26
  popularity: 15
  isrc code: ES49G1400615
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T20:54:17+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x418dceb181980243e957fc5e29591dde560612a2e80ab47320c3e05f766286f5
  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/ES49G1400615
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  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 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 0x418dceb181980243e957fc5e29591dde560612a2e80ab47320c3e05f766286f5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES49G1400615.
    date published: 2026-07-02T03:30:09Z
  audio: O Galo Canta
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 127.876
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.664
    additional property: Energy
      type: PropertyValue
      value: 0.31
    additional property: Speechiness
      type: PropertyValue
      value: 0.071
    additional property: Acousticness
      type: PropertyValue
      value: 0.113
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.084
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.454
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.394
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Medomedá
  type: MusicRecording
  duration: PT3M1S
  duration ms: 181426
  explicit: false
  by artist: Uxía
  by artist: Magín Blanco
  by artist: Sergio Tannus
  by artist: Santi Cribeiro
  by artist: Isaac Palacín
  by artist: Chus Domínguez
  by artist: Ana Senlle
  by artist: Ruí Sío
  in album: Xiqui Xoque, Fiú Fiú! María Fumaça
    type: MusicAlbum
    date published: 2014-05-26
  popularity: 5
  isrc code: ES49G1400608
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-22T10:53:56+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0c4acd903ffc1c72d2d33fa1324e547b907573e442bf1922b02f3cfe85b32bf8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959123
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959123
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES49G1400608
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-22T11:35:32Z
  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 0x0c4acd903ffc1c72d2d33fa1324e547b907573e442bf1922b02f3cfe85b32bf8. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/ES49G1400608.
    date published: 2026-07-22T11:35:32Z
  audio: Medomedá
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 113.502
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
    additional property: Danceability
    additional property: Energy
    additional property: Speechiness
    additional property: Acousticness
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name

Time Signature
type: PropertyValue
value: 5

Danceability
type: PropertyValue
value: 0.563

Energy
type: PropertyValue
value: 0.643

Speechiness
type: PropertyValue
value: 0.039

Acousticness
type: PropertyValue
value: 0.745

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.362

Valence (Positivity)
type: PropertyValue
value: 0.703

Loudness (dB)
type: PropertyValue
value: -11.548

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major