Los Blancos
type: MusicGroup
genre: guaracha
popularity: 5
followers: 1907
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8d1d3d5f39d5d6d5c0cd3a9dd71fa1bdcf98980fe07ae7d213f4786276e5173b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954124
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b6fb116-7100-4d2f-867f-dabe2dafd4d0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b6fb116-7100-4d2f-867f-dabe2dafd4d0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7b6fb116-7100-4d2f-867f-dabe2dafd4d0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T18:22:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8d1d3d5f39d5d6d5c0cd3a9dd71fa1bdcf98980fe07ae7d213f4786276e5173b","name":"Los Blancos","registered_at":"2026-06-17T08:41:49Z","symbol":"NIM1341540","token_address":"0x54e73c57dcbe79c209877a1eb6c921b440f75967","type":"artist","uuid":"7b6fb116-7100-4d2f-867f-dabe2dafd4d0"}
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 0x8d1d3d5f39d5d6d5c0cd3a9dd71fa1bdcf98980fe07ae7d213f4786276e5173b. Chain 2 (Bitcoin): anchored in block 954124 (2026-06-17T18:22:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b6fb116-7100-4d2f-867f-dabe2dafd4d0.json and https://artists.proofprofile.net/proofs/artist/7b6fb116-7100-4d2f-867f-dabe2dafd4d0.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T18:22:18Z
  text: {"copyright_id":"0x8d1d3d5f39d5d6d5c0cd3a9dd71fa1bdcf98980fe07ae7d213f4786276e5173b","name":"Los Blancos","registered_at":"2026-06-17T08:41:49Z","symbol":"NIM1341540","token_address":"0x54e73c57dcbe79c209877a1eb6c921b440f75967","type":"artist","uuid":"7b6fb116-7100-4d2f-867f-dabe2dafd4d0"}
album: Thirst Of A Thousand Camels
  type: MusicAlbum
  date published: 2001
album: Special Blend
  type: MusicAlbum
  date published: 2001-08-31
album: Just This Once
  type: MusicAlbum
  date published: 2007-07-20
album: Taj For Breakfast
  type: MusicAlbum
  date published: 2010-01-01
album: Van A Tocá (Vol.1)
  type: MusicAlbum
  date published: 2021-09-10
  track: Van a Tocá
    type: MusicRecording
    duration: PT3M23S
    duration ms: 203363
    explicit: false
    by artist: Los Blancos
    in album: Van A Tocá (Vol.1)
      type: MusicAlbum
      date published: 2021-09-10
    genre: guaracha
    isrc code: COA6W2102130
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-07T09:56:49+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe24f1259f1429ae91163f6d97a7c4e029161824a9f799d00239a96521b89d7ad
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957118
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957118
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COA6W2102130
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:20:19Z
    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 0xe24f1259f1429ae91163f6d97a7c4e029161824a9f799d00239a96521b89d7ad. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COA6W2102130 — a six-check JSON result.
      date published: 2026-07-08T03:20:19Z
    audio: Van a Tocá
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.42
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.912
      additional property: Energy
        type: PropertyValue
        value: 0.703
      additional property: Speechiness
        type: PropertyValue
        value: 0.062
      additional property: Acousticness
        type: PropertyValue
        value: 0.584
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.24
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.974
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.775
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: La Mecedora
    type: MusicRecording
    duration: PT3M26S
    duration ms: 206236
    explicit: false
    by artist: Los Blancos
    in album: Van A Tocá (Vol.1)
      type: MusicAlbum
      date published: 2021-09-10
    genre: guaracha
    isrc code: COA6W2101942
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-30T00:11:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xac087cafb33036869a4fb507707383d92fcee12f6cb71fc8d1ad07a341d9d785
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960175
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960175
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COA6W2101942
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-30T00:16:15Z
    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 0xac087cafb33036869a4fb507707383d92fcee12f6cb71fc8d1ad07a341d9d785. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COA6W2101942 — a six-check JSON result.
      date published: 2026-07-30T00:16:15Z
    audio: La Mecedora
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 113.624
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.871
      additional property: Energy
        type: PropertyValue
        value: 0.643
      additional property: Speechiness
        type: PropertyValue
        value: 0.055
      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
  track: Ponte En Mi Lugar
album: Buscare un Motivo Vol. 2
track: Intro
track: F5

Acousticness
type: PropertyValue
value: 0.44

Instrumentalness
type: PropertyValue
value: 0.017

Liveness
type: PropertyValue
value: 0.118

Valence (Positivity)
type: PropertyValue
value: 0.964

Loudness (dB)
type: PropertyValue
value: -14.487

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

Ponte En Mi Lugar
type: MusicRecording
duration: PT4M37S
duration ms: 277995
explicit: false
by artist: Los Blancos
in album: Van A Tocá (Vol.1)
  type: MusicAlbum
  date published: 2021-09-10
genre: guaracha
isrc code: COA6W2101943
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T17:04:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf45e3b42a4182c8efc9412e1d5d4cbefbcfa57c010df9d2bbc4d955106be113f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960441
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960441
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COA6W2101943
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T17:29:52Z
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 0xf45e3b42a4182c8efc9412e1d5d4cbefbcfa57c010df9d2bbc4d955106be113f. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COA6W2101943 — a six-check JSON result.
  date published: 2026-07-31T17:29:52Z
audio: Ponte En Mi Lugar
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 123.078
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.812
  additional property: Energy
    type: PropertyValue
    value: 0.685
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.067
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.041
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.893
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.108
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Buscare un Motivo Vol. 2
type: MusicAlbum
date published: 2021-09-16
track: Sunsun Babae
  type: MusicRecording
  duration: PT4M32S
  duration ms: 272248
  explicit: false
  by artist: Los Blancos
  in album: Buscare un Motivo Vol. 2
    type: MusicAlbum
    date published: 2021-09-16
  genre: guaracha
  isrc code: COA6W2102033
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T20:08:45+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc98a7eb2d3db6463b985a28b196db45c7ee1921c6e2bd3cec14e169a60fec01c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COA6W2102033
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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 0xc98a7eb2d3db6463b985a28b196db45c7ee1921c6e2bd3cec14e169a60fec01c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COA6W2102033 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Sunsun Babae
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 114.605
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.856
    additional property: Energy
      type: PropertyValue
      value: 0.572
    additional property: Speechiness
      type: PropertyValue
      value: 0.078
    additional property: Acousticness
      type: PropertyValue
      value: 0.314
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.141
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.904
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.523
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Hoy
  type: MusicRecording
  duration: PT3M1S
  duration ms: 181890
  explicit: false
  by artist: Los Blancos
  in album: Buscare un Motivo Vol. 2
    type: MusicAlbum
    date published: 2021-09-16
  genre: guaracha
  isrc code: COA6W2102035
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T14:32:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf1a02fdd66ea3fcf13ca8b729d844919d7209b5eb324eced4342c97f5f5ba9e2
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960418
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960418
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COA6W2102035
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T15:20:15Z
  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 0xf1a02fdd66ea3fcf13ca8b729d844919d7209b5eb324eced4342c97f5f5ba9e2. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COA6W2102035 — a six-check JSON result.
    date published: 2026-07-31T15:20:15Z
  audio: Hoy
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 152.036
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.705
    additional property: Energy
      type: PropertyValue
      value: 0.451
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.339
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.216
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.952
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.651
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Tres Días De Carnaval
  type: MusicRecording
  duration: PT5M40S
  duration ms: 340218
  explicit: false
  by artist: Los Blancos
  in album: Buscare un Motivo Vol. 2
    type: MusicAlbum
    date published: 2021-09-16
  genre: guaracha
  isrc code: COA6W2102040
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T10:43:45+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xcaed3dcc753c6178966a2f5c08a99c431f73ba5ff5a7e7014d5d083b0d9f8ea4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Tres Días De Carnaval

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COA6W2102040

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

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

OpenTimestamps Proof of Existence
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Tres Días De Carnaval
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