Ester Vallejo
type: MusicGroup
genre: traditional music
popularity: 17
followers: 838
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xad5c46dc8ec2ccda0646c4d6e5d22c3624f0ad8d2dbf3b824fe1fc33a3e9f40b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953770
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953770
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c4cbf71f-f889-4dce-9434-f22f61177a1d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c4cbf71f-f889-4dce-9434-f22f61177a1d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c4cbf71f-f889-4dce-9434-f22f61177a1d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T09:50:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xad5c46dc8ec2ccda0646c4d6e5d22c3624f0ad8d2dbf3b824fe1fc33a3e9f40b","name":"Ester Vallejo","registered_at":"2026-06-15T01:08:25Z","symbol":"NIM0634334","token_address":"0x8e44737014793d7b55d97b2086befc624eb8bee2","type":"artist","uuid":"c4cbf71f-f889-4dce-9434-f22f61177a1d"}
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 0xad5c46dc8ec2ccda0646c4d6e5d22c3624f0ad8d2dbf3b824fe1fc33a3e9f40b. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4cbf71f-f889-4dce-9434-f22f61177a1d.json and https://artists.proofprofile.net/proofs/artist/c4cbf71f-f889-4dce-9434-f22f61177a1d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T09:50:11Z
  text: {"copyright_id":"0xad5c46dc8ec2ccda0646c4d6e5d22c3624f0ad8d2dbf3b824fe1fc33a3e9f40b","name":"Ester Vallejo","registered_at":"2026-06-15T01:08:25Z","symbol":"NIM0634334","token_address":"0x8e44737014793d7b55d97b2086befc624eb8bee2","type":"artist","uuid":"c4cbf71f-f889-4dce-9434-f22f61177a1d"}
album: Maremagnum
  type: MusicAlbum
  date published: 2020-12-27
album: Raíces
  type: MusicAlbum
  date published: 2021-12-22
album: Tejiendo Red
  type: MusicAlbum
  date published: 2022-09-15
album: El pueblo pa las montañas (Sencillo)
  type: MusicAlbum
  date published: 2024-07-12
album: La niña y el charro
  type: MusicAlbum
  date published: 2024-08-18
album: A la fresca - Sencillo
  type: MusicAlbum
  date published: 2024-09-25
  track: A la fresca - Sencillo
    type: MusicRecording
    duration: PT3M31S
    duration ms: 211084
    explicit: false
    by artist: Ester Vallejo
    in album: A la fresca - Sencillo
      type: MusicAlbum
      date published: 2024-09-25
    genre: traditional music
    isrc code: ESA092410183
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T02:49:34+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x32a3c96e846c10466043b7a7b1eda8a77599760ee63606f51dda937beb108683
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958955
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958955
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA092410183
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T03:03:40Z
    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 0x32a3c96e846c10466043b7a7b1eda8a77599760ee63606f51dda937beb108683. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/ESA092410183.
      date published: 2026-07-21T03:03:40Z
    audio: A la fresca - Sencillo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.856
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.624
      additional property: Energy
        type: PropertyValue
        value: 0.376
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.591
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.103
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.475
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.231
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: A la fresca
  type: MusicAlbum
  date published: 2024-09-27
  track: Segadora
    type: MusicRecording
    duration: PT3M28S
    duration ms: 208915
    explicit: false
    by artist: Ester Vallejo
    in album: A la fresca
      type: MusicAlbum
      date published: 2024-09-27
    genre: traditional music
    isrc code: ESA092409753
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T02:46:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1c610d2fc9841c7216e1824585c0ad6c3198f9c2d4701c6a5cfbd39f6f56b60e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958955
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958955
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA092409753
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T03:03:40Z
    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 0x1c610d2fc9841c7216e1824585c0ad6c3198f9c2d4701c6a5cfbd39f6f56b60e. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/ESA092409753.
      date published: 2026-07-21T03:03:40Z
    audio: Segadora
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.189
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.568
      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
  track: Panadera
  track: Nana de las que cuidan
  track: La Condesa del Sobrarbe
  track: El pueblo pa las montañas
  track: Albada

Energy
type: PropertyValue
value: 0.359

Speechiness
type: PropertyValue
value: 0.067

Acousticness
type: PropertyValue
value: 0.566

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.117

Valence (Positivity)
type: PropertyValue
value: 0.333

Loudness (dB)
type: PropertyValue
value: -8.426

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Minor

Panadera
type: MusicRecording
duration: PT3M1S
duration ms: 181445
explicit: false
by artist: Ester Vallejo
in album: A la fresca
  type: MusicAlbum
  date published: 2024-09-27
genre: traditional music
isrc code: ESA092409754
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-21T18:06:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc17b9960edd3635db305a4550eb8125c261306f1f9a9c8cd05a448e4e9f34238
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959047
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959047
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA092409754
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-21T19:17:28Z
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 0xc17b9960edd3635db305a4550eb8125c261306f1f9a9c8cd05a448e4e9f34238. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/ESA092409754.
  date published: 2026-07-21T19:17:28Z
audio: Panadera
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.346
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.782
  additional property: Energy
    type: PropertyValue
    value: 0.406
  additional property: Speechiness
    type: PropertyValue
    value: 0.084
  additional property: Acousticness
    type: PropertyValue
    value: 0.101
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.089
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.123
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.159
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Nana de las que cuidan
type: MusicRecording
duration: PT4M6S
duration ms: 246144
explicit: false
by artist: Ester Vallejo
in album: A la fresca
  type: MusicAlbum
  date published: 2024-09-27
genre: traditional music
isrc code: ESA092409755
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-18T09:55:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x06ea9b2d5876360716b9847978ffd19d3c9c191a7e700f24b5fb1a2856a374de
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958543
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958543
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA092409755
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T11:58:44Z
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 0x06ea9b2d5876360716b9847978ffd19d3c9c191a7e700f24b5fb1a2856a374de. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ESA092409755.
  date published: 2026-07-18T11:58:44Z
audio: Nana de las que cuidan
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.725
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.511
  additional property: Energy
    type: PropertyValue
    value: 0.286
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.879
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.148
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.163
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.264
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

La Condesa del Sobrarbe
type: MusicRecording
duration: PT4M14S
duration ms: 254096
explicit: false
by artist: Ester Vallejo
in album: A la fresca
  type: MusicAlbum
  date published: 2024-09-27
genre: traditional music
isrc code: ESA092409759
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T04:30:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xee058cf1064838c333f80adadd069d08a91cc0578721f54afb507d2b9c64d647
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958662
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958662
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA092409759
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T04:43:15Z
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 0xee058cf1064838c333f80adadd069d08a91cc0578721f54afb507d2b9c64d647. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA092409759.
  date published: 2026-07-19T04:43:15Z
audio: La Condesa del Sobrarbe
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.046
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.517
  additional property: Energy
    type: PropertyValue
    value: 0.197
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.907
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.123
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.569
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.325
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

El pueblo pa las montañas
type: MusicRecording
duration: PT4M47S
duration ms: 287349
explicit: false
by artist: Ester Vallejo
in album: A la fresca
  type: MusicAlbum
  date published: 2024-09-27
genre: traditional music
isrc code: ESA092409760
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T14:58:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x194bb66d94885037f6abe756e01f3a1aa058448cf4a47498b5c7a3964bf60a10
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958901
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958901
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA092409760
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T15:07:00Z
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 0x194bb66d94885037f6abe756e01f3a1aa058448cf4a47498b5c7a3964bf60a10. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/ESA092409760.
  date published: 2026-07-20T15:07:00Z
audio: El pueblo pa las montañas
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 170.906
  additional property: Musical Key
    type: PropertyValue
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Albada
type: MusicRecording
duration: PT3M15S
duration ms: 195903
explicit: false
by artist: Ester Vallejo
in album: A la fresca
  type: MusicAlbum
  date published: 2024-09-27
genre: traditional music
isrc code: ESA092409761
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d545a28af86c80544c3df5bc9427a8aefc9ff662b32f5e6f7411bf74316ae42. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/ESA092409761.
  date published: 2026-07-21T03:03:40Z
audio: Albada
  type: AudioObject
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  additional property: Acousticness
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  additional property: Instrumentalness
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