Efrain Colombo
type: MusicGroup
genre: folklore argentino
popularity: 21
followers: 1181
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1dcd56203c275091d39a80466f7774b08a9367e7d97936e9e53f2cb0ee9d601b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/624bb826-b388-4627-aa55-be1e8c968a74.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/624bb826-b388-4627-aa55-be1e8c968a74.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/624bb826-b388-4627-aa55-be1e8c968a74
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1dcd56203c275091d39a80466f7774b08a9367e7d97936e9e53f2cb0ee9d601b","name":"Efrain Colombo","registered_at":"2026-06-11T22:51:49Z","symbol":"NIM0127677","token_address":"0x32e98e26dcdc4efb5890e0f084f9ce47bd2d34c1","type":"artist","uuid":"624bb826-b388-4627-aa55-be1e8c968a74"}
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 0x1dcd56203c275091d39a80466f7774b08a9367e7d97936e9e53f2cb0ee9d601b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/624bb826-b388-4627-aa55-be1e8c968a74.json and https://artists.proofprofile.net/proofs/artist/624bb826-b388-4627-aa55-be1e8c968a74.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x1dcd56203c275091d39a80466f7774b08a9367e7d97936e9e53f2cb0ee9d601b","name":"Efrain Colombo","registered_at":"2026-06-11T22:51:49Z","symbol":"NIM0127677","token_address":"0x32e98e26dcdc4efb5890e0f084f9ce47bd2d34c1","type":"artist","uuid":"624bb826-b388-4627-aa55-be1e8c968a74"}
album: De la Esencia al Canto
  type: MusicAlbum
  date published: 2011-01-01
  track: Aún Hay Sueños
    type: MusicRecording
    duration: PT3M27S
    duration ms: 207173
    explicit: false
    by artist: Efrain Colombo
    in album: De la Esencia al Canto
      type: MusicAlbum
      date published: 2011-01-01
    genre: folklore argentino
    isrc code: AR0ME1100006
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-27T01:59:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbc576fad740c33bf3e413a6e41a8b1865d038b7e2df94ec27665c058296ceba6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956304
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956304
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR0ME1100006
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T03:55:08Z
    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 0xbc576fad740c33bf3e413a6e41a8b1865d038b7e2df94ec27665c058296ceba6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/AR0ME1100006.
      date published: 2026-07-02T03:55:08Z
    audio: Aún Hay Sueños
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 137.379
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.476
      additional property: Energy
        type: PropertyValue
        value: 0.505
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.761
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.209
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.226
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.821
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: De la Esencia al Canto
  type: MusicAlbum
  date published: 2011-01-01
album: De La Esencia Al Canto
  type: MusicAlbum
  date published: 2011-01-01
album: Libertad Y Misterio
  type: MusicAlbum
  date published: 2014-01-01
album: Libertad y Misterio
  type: MusicAlbum
  date published: 2014-01-01
album: Libertad y Misterio
  type: MusicAlbum
  date published: 2014-01-01
album: Libertad y Misterio
  type: MusicAlbum
  date published: 2017-02-10
album: De la Esencia al Canto
  type: MusicAlbum
  date published: 2017-02-23
album: 10 Años de Folklore
  type: MusicAlbum
  date published: 2018-01-01
album: 10 Años de Folklore
  type: MusicAlbum
  date published: 2018-01-01
album: 10 Años de Folklore
  type: MusicAlbum
  date published: 2018-01-01
album: Guitarreros de un Cantar
  type: MusicAlbum
  date published: 2019-06-20
album: Guitarreros de un Cantar
  type: MusicAlbum
  date published: 2019-06-20
album: Guitarreros De Un Cantar
  type: MusicAlbum
  date published: 2019-06-20
album: Lo Que Soy
  type: MusicAlbum
  date published: 2020-01-09
album: Lo Que Soy
  type: MusicAlbum
  date published: 2020-01-09
album: Hijos del Río
  type: MusicAlbum
  date published: 2020-02-14
  track: Hijos del Río
    type: MusicRecording
    duration: PT3M26S
    duration ms: 206442
    explicit: false
    by artist: Efrain Colombo
    in album: Hijos del Río
      type: MusicAlbum
      date published: 2020-02-14
    genre: folklore argentino
    isrc code: USCGH2087857
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T16:52:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa31789d6eb636565ababc3b33b2b9c25afe5530c927dca68307ee378c67289ac
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959037
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959037
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Hijos del Río
album: Mi Cantar
album: Quedate en Casa
album: Alma de Barrio
album: Eco
album: Me Acusan a Mí
album: Lavandera
album: Mi Regreso
album: Entrega de Amor
album: Un Adiós
album: Quizás Me Perdí
album: Sembrador de Esperanza
album: Merceditas
album: Santa Fe en Mi Corazón
album: En Tu Ausencia
album: Barrilete de Dios
album: Barrilete De Dios
album: Himno al Frutillero
album: Himno Al Frutillero
album: Un Canto Una Voz
album: Cantores de Orilla
album: Mentiras de Amor
album: Mentiras De Amor
album: Mi Última Carta
album: Historia Sagrada
album: Chamarras Argentinas
album: Corazón Santafesino
album: Amor Y Monte
album: Amor y Monte
album: Chamameceando Vol.1

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2087857

OTSTimestamp
type: PropertyValue
value: 2026-07-21T16:59:47Z

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
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31789d6eb636565ababc3b33b2b9c25afe5530c927dca68307ee378c67289ac. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/USCGH2087857.
date published: 2026-07-21T16:59:47Z

Hijos del Río
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 86.162
additional property: Musical Key
  type: PropertyValue
  value: 11
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.444
additional property: Energy
  type: PropertyValue
  value: 0.532
additional property: Speechiness
  type: PropertyValue
  value: 0.037
additional property: Acousticness
  type: PropertyValue
  value: 0.236
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.277
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.461
additional property: Loudness (dB)
  type: PropertyValue
  value: -9.684
additional property: Key Name
  type: PropertyValue
  value: B
additional property: Mode Name
  type: PropertyValue
  value: Minor

Mi Cantar
type: MusicAlbum
date published: 2020-02-28

Quedate en Casa
type: MusicAlbum
date published: 2020-04-01

Alma de Barrio
type: MusicAlbum
date published: 2020-07-17

Eco
type: MusicAlbum
date published: 2020-08-07

Eco
type: MusicAlbum
date published: 2020-08-07

Me Acusan a Mí
type: MusicAlbum
date published: 2020-08-21

Lavandera
type: MusicAlbum
date published: 2020-09-18

Lavandera
type: MusicAlbum
date published: 2020-09-18

Mi Regreso
type: MusicAlbum
date published: 2020-10-09

Mi Regreso
type: MusicAlbum
date published: 2020-10-09

Entrega de Amor
type: MusicAlbum
date published: 2020-10-30

Entrega de Amor
type: MusicAlbum
date published: 2020-10-30

Un Adiós
type: MusicAlbum
date published: 2020-12-18

Un Adiós
type: MusicAlbum
date published: 2020-12-18

Quizás Me Perdí
type: MusicAlbum
date published: 2021-02-12

Quizás Me Perdí
type: MusicAlbum
date published: 2021-02-12

Sembrador de Esperanza
type: MusicAlbum
date published: 2021-03-05

Sembrador de Esperanza
type: MusicAlbum
date published: 2021-03-05

Lo Que Soy
type: MusicAlbum
date published: 2021-06-11

Lo Que Soy
type: MusicAlbum
date published: 2021-06-11
track: Mi Regreso
  type: MusicRecording
  duration: PT2M59S
  duration ms: 179792
  explicit: false
  by artist: Efrain Colombo
  in album: Lo Que Soy
    type: MusicAlbum
    date published: 2021-06-11
  genre: folklore argentino
  isrc code: ARJ142000350
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T11:48:25+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf83e0ce725f217871aaeb83b37359fb03490754e909dd6c8671d83cdfa6bc640
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956545
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956545
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARJ142000350
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T19:59:51Z
  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 0xf83e0ce725f217871aaeb83b37359fb03490754e909dd6c8671d83cdfa6bc640. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ARJ142000350.
    date published: 2026-07-03T19:59:51Z
  audio: Mi Regreso
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 149.675
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.568
    additional property: Energy
      type: PropertyValue
      value: 0.527
    additional property: Speechiness
      type: PropertyValue
      value: 0.039
    additional property: Acousticness
      type: PropertyValue
      value: 0.121
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.348
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.515
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.318
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Lavandera
  type: MusicRecording
  duration: PT2M50S
  duration ms: 170617
  explicit: false
  by artist: Efrain Colombo
  in album: Lo Que Soy
    type: MusicAlbum
    date published: 2021-06-11
  genre: folklore argentino
  isrc code: ARJ142000351
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T00:35:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe5a5a958c652eba1327a1aaf53cfb1008e2bc98c43b843ea1584d40caea17b46
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956725
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956725
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARJ142000351
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:12:41Z
  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 0xe5a5a958c652eba1327a1aaf53cfb1008e2bc98c43b843ea1584d40caea17b46. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ARJ142000351.
    date published: 2026-07-05T01:12:41Z
  audio: Lavandera
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 87.856
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.564
    additional property: Energy
      type: PropertyValue
      value: 0.756
    additional property: Speechiness
      type: PropertyValue
      value: 0.05
    additional property: Acousticness
      type: PropertyValue
      value: 0.039
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.406
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.776
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.924
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Quizás Me Perdí
  type: MusicRecording
  duration: PT3M28S
  duration ms: 208410
  explicit: false
  by artist: Efrain Colombo
  in album: Lo Que Soy
    type: MusicAlbum
    date published: 2021-06-11
  genre: folklore argentino
  isrc code: ARJ142000352
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T01:42:54+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6369176249176d2317b8ec9eae4d34c376405c549135f66e09e22d4ed263e49f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958951
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958951
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Quizás Me Perdí
track: Un Adiós
track: Hijos de Río

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARJ142000352

OTSTimestamp
type: PropertyValue
value: 2026-07-21T04:45:38Z

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
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6369176249176d2317b8ec9eae4d34c376405c549135f66e09e22d4ed263e49f. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:45:38Z), 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/ARJ142000352.
date published: 2026-07-21T04:45:38Z

Quizás Me Perdí
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 96.198
additional property: Musical Key
  type: PropertyValue
  value: 4
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 3
additional property: Danceability
  type: PropertyValue
  value: 0.568
additional property: Energy
  type: PropertyValue
  value: 0.525
additional property: Speechiness
  type: PropertyValue
  value: 0.03
additional property: Acousticness
  type: PropertyValue
  value: 0.149
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.061
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.566
additional property: Loudness (dB)
  type: PropertyValue
  value: -7.999
additional property: Key Name
  type: PropertyValue
  value: E
additional property: Mode Name
  type: PropertyValue
  value: Major

Un Adiós
type: MusicRecording
duration: PT3M15S
duration ms: 195746
explicit: false
by artist: Efrain Colombo
in album: Lo Que Soy
  type: MusicAlbum
  date published: 2021-06-11
genre: folklore argentino
isrc code: ARJ142000354
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-03T02:38:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x47ad66457c4bc98098ea1195361c76ebad764875863be9bb301020615d190306
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956474
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956474
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARJ142000354
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-03T08:56:35Z
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 0x47ad66457c4bc98098ea1195361c76ebad764875863be9bb301020615d190306. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ARJ142000354.
  date published: 2026-07-03T08:56:35Z
audio: Un Adiós
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.124
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.547
  additional property: Energy
    type: PropertyValue
    value: 0.442
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.343
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.221
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.16
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.551
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Hijos de Río
type: MusicRecording
duration: PT3M26S
duration ms: 206108
explicit: false
by artist: Efrain Colombo
in album: Lo Que Soy
  type: MusicAlbum
  date published: 2021-06-11
genre: folklore argentino
isrc code: ARJ142000357
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-21T01:35:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xce22ce546b62d56d69f3799a0a0ebde9fffd7bee6bf7762b2156a4e97ad2d077
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958951
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958951
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARJ142000357
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-21T04:37:50Z
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 0xce22ce546b62d56d69f3799a0a0ebde9fffd7bee6bf7762b2156a4e97ad2d077. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:37:50Z), 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/ARJ142000357.
  date published: 2026-07-21T04:37:50Z
audio: Hijos de Río
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 85.629
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.426
  additional property: Energy
    type: PropertyValue
    value: 0.632
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.083
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.449
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.48
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.325
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Lo Que Soy
type: MusicAlbum
date published: 2021-06-11
track: Entrega De Amor
  type: MusicRecording
  duration: PT3M5S
  duration ms: 185852
  explicit: false
  by artist: Efrain Colombo
  in album: Lo Que Soy
    type: MusicAlbum
    date published: 2021-06-11
  genre: folklore argentino
  isrc code: ARJ142000353
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T02:30:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7db41feb7b83ac4fcf5472a95874493c3f74b665b0d1dba214e727c2e3e7bdde
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958808
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958808
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARJ142000353
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T05:33:48Z
  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 0x7db41feb7b83ac4fcf5472a95874493c3f74b665b0d1dba214e727c2e3e7bdde. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:33:48Z), 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/ARJ142000353.
    date published: 2026-07-20T05:33:48Z
  audio: Entrega De Amor
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 144.008
    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: 0.575
    additional property: Energy
      type: PropertyValue
      value: 0.657
    additional property: Speechiness
      type: PropertyValue
      value: 0.059
    additional property: Acousticness
      type: PropertyValue
      value: 0.15
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.288
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.504
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.109
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

Merceditas
type: MusicAlbum
date published: 2021-07-09

Merceditas
type: MusicAlbum
date published: 2021-07-09

Santa Fe en Mi Corazón
type: MusicAlbum
date published: 2021-08-20

En Tu Ausencia
type: MusicAlbum
date published: 2021-09-03

En Tu Ausencia
type: MusicAlbum
date published: 2021-09-03

Barrilete de Dios
type: MusicAlbum
date published: 2021-12-10

Barrilete De Dios
type: MusicAlbum
date published: 2021-12-10

Barrilete de Dios
type: MusicAlbum
date published: 2021-12-10

Himno al Frutillero
type: MusicAlbum
date published: 2022-09-09

Himno Al Frutillero
type: MusicAlbum
date published: 2022-09-09

Mi Cantar
type: MusicAlbum
date published: 2023-01-06

Mi Cantar
type: MusicAlbum
date published: 2023-01-06

Un Canto Una Voz
type: MusicAlbum
date published: 2023-04-14

Un Canto Una Voz
type: MusicAlbum
date published: 2023-04-14

Cantores de Orilla
type: MusicAlbum
date published: 2023-09-29

Cantores de Orilla
type: MusicAlbum
date published: 2023-09-29

Mentiras de Amor
type: MusicAlbum
date published: 2023-11-30

Mentiras De Amor
type: MusicAlbum
date published: 2023-11-30

Mentiras de Amor
type: MusicAlbum
date published: 2023-11-30

Mi Última Carta
type: MusicAlbum
date published: 2024-04-25

Mi Última Carta
type: MusicAlbum
date published: 2024-04-25
track: Mi Última Carta
  type: MusicRecording
  duration: PT2M51S
  duration ms: 171009
  explicit: false
  by artist: Efrain Colombo
  in album: Mi Última Carta
    type: MusicAlbum
    date published: 2024-04-25
  genre: folklore argentino
  isrc code: ARHJI2400001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T00:48:40+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x18e8edc41adde508780e9dc1cb69c313d298be28062f2d456d9c800b9816f035
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956634
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956634
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARHJI2400001
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T10:04:33Z
  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 0x18e8edc41adde508780e9dc1cb69c313d298be28062f2d456d9c800b9816f035. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ARHJI2400001.
    date published: 2026-07-04T10:04:33Z
  audio: Mi Última Carta
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 159.936
    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: 0.484
    additional property: Energy
      type: PropertyValue
      value: 0.82
    additional property: Speechiness
      type: PropertyValue
      value: 0.069
    additional property: Acousticness
      type: PropertyValue
      value: 0.251
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.346
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.72
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.828
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

Mi Última Carta
type: MusicAlbum
date published: 2024-04-25

Historia Sagrada
type: MusicAlbum
date published: 2024-08-14

Historia Sagrada
type: MusicAlbum
date published: 2024-08-15

Chamarras Argentinas
type: MusicAlbum
date published: 2024-10-24

Chamarras Argentinas
type: MusicAlbum
date published: 2024-10-24

Corazón Santafesino
type: MusicAlbum
date published: 2024-11-14
track: Corazón Santafesino
  type: MusicRecording
  duration: PT2M41S
  duration ms: 161048
  explicit: false
  by artist: Efrain Colombo
  in album: Corazón Santafesino
    type: MusicAlbum
    date published: 2024-11-14
  genre: folklore argentino
  isrc code: ARHJI2400004
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T23:24:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x238dbe8765e25bbeab6bfac0d7f63f42bf57b18f16343a32b7bf3f91a2bd69c6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958216
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958216
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARHJI2400004
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T00:00:34Z
  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 0x238dbe8765e25bbeab6bfac0d7f63f42bf57b18f16343a32b7bf3f91a2bd69c6. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/ARHJI2400004.
    date published: 2026-07-16T00:00:34Z
  audio: Corazón Santafesino
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 149.16
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.662
    additional property: Energy
      type: PropertyValue
      value: 0.825
    additional property: Speechiness
      type: PropertyValue
      value: 0.216
    additional property: Acousticness
      type: PropertyValue
      value: 0.357
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.243
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.936
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.68
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major

Corazón Santafesino
type: MusicAlbum
date published: 2024-11-14

Amor Y Monte
type: MusicAlbum
date published: 2025-05-08

Amor y Monte
type: MusicAlbum
date published: 2025-05-08
track: Amor y Monte
  type: MusicRecording
  duration: PT2M33S
  duration ms: 153322
  explicit: false
  by artist: Efrain Colombo
  in album: Amor y Monte
    type: MusicAlbum
    date published: 2025-05-08
  genre: folklore argentino
  isrc code: ARHJI2500001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T13:05:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbe52f092c87b31a8be657b492ea691d4272d5047206cd79b1920e01dde4b30cb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956725
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956725
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARHJI2500001
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:12:41Z
  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 0xbe52f092c87b31a8be657b492ea691d4272d5047206cd79b1920e01dde4b30cb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ARHJI2500001.
    date published: 2026-07-05T01:12:41Z
  audio: Amor y Monte
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 157.859
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.556
    additional property: Energy
      type: PropertyValue
      value: 0.663
    additional property: Speechiness
      type: PropertyValue
      value: 0.089
    additional property: Acousticness
      type: PropertyValue
      value: 0.56
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.091
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.875
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.521
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major

Chamameceando Vol.1
type: MusicAlbum
date published: 2025-08-01