Angelito Martinez
type: MusicGroup
genre: tango
popularity: 22
followers: 1300
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6f52c342cd8889278cfac019e6d29e469f871097c9b056e790cffb4b03ab9b8e
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/42717535-473c-496f-809d-aa78697020ed.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/42717535-473c-496f-809d-aa78697020ed.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/42717535-473c-496f-809d-aa78697020ed
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6f52c342cd8889278cfac019e6d29e469f871097c9b056e790cffb4b03ab9b8e","name":"Angelito Martinez","registered_at":"2026-06-11T18:08:56Z","symbol":"NIM0086500","token_address":"0xaf5ccfb998121a34aee95b94a6f7c0f4a7c2c27c","type":"artist","uuid":"42717535-473c-496f-809d-aa78697020ed"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f52c342cd8889278cfac019e6d29e469f871097c9b056e790cffb4b03ab9b8e. 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/42717535-473c-496f-809d-aa78697020ed.json and https://artists.proofprofile.net/proofs/artist/42717535-473c-496f-809d-aa78697020ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x6f52c342cd8889278cfac019e6d29e469f871097c9b056e790cffb4b03ab9b8e","name":"Angelito Martinez","registered_at":"2026-06-11T18:08:56Z","symbol":"NIM0086500","token_address":"0xaf5ccfb998121a34aee95b94a6f7c0f4a7c2c27c","type":"artist","uuid":"42717535-473c-496f-809d-aa78697020ed"}
album: Antología, Vol. 1: Gardel y Le Pera
  type: MusicAlbum
  date published: 2018-05-08
album: Antología, Vol.2: Viejas Alegrias
  type: MusicAlbum
  date published: 2018-10-26
  track: Barro Tal Vez
    type: MusicRecording
    duration: PT3M42S
    duration ms: 222208
    explicit: false
    by artist: Angelito Martinez
    in album: Antología, Vol.2: Viejas Alegrias
      type: MusicAlbum
      date published: 2018-10-26
    genre: tango
    isrc code: ARK481800078
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T07:37:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x23e7e1471a1dfaa6724d2d1b8484c8e50e1a11516003294eec54d128e83b45a1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958846
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958846
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARK481800078
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T10:38:46Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e7e1471a1dfaa6724d2d1b8484c8e50e1a11516003294eec54d128e83b45a1. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:38:46Z), 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/ARK481800078.
      date published: 2026-07-20T10:38:46Z
    audio: Barro Tal Vez
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 128.079
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.44
      additional property: Energy
        type: PropertyValue
        value: 0.136
      additional property: Speechiness
        type: PropertyValue
        value: 0.049
      additional property: Acousticness
        type: PropertyValue
        value: 0.749
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.076
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.207
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.811
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Antología, Vol. 3: Yuyo Verde
  type: MusicAlbum
  date published: 2019-07-26
  track: Si Tu Quisieras
    type: MusicRecording
    duration: PT2M13S
    duration ms: 133760
    explicit: false
    by artist: Angelito Martinez
    in album: Antología, Vol. 3: Yuyo Verde
      type: MusicAlbum
      date published: 2019-07-26
    genre: tango
    isrc code: ARK481900064
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-29T19:06:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd4f34852a2873cf939043792b28012645ed63620703c54fcb765c6d0130520e6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956375
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956375
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARK481900064
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T16:51:38Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f34852a2873cf939043792b28012645ed63620703c54fcb765c6d0130520e6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARK481900064.
      date published: 2026-07-02T16:51:38Z
    audio: Si Tu Quisieras
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.355
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.621
      additional property: Energy
        type: PropertyValue
        value: 0.299
      additional property: Speechiness
        type: PropertyValue
        value: 0.061
      additional property: Acousticness
        type: PropertyValue
        value: 0.721
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Antologia, Vol.4: Mano a Mano
album: Contando Tangos

Liveness
type: PropertyValue
value: 0.168

Valence (Positivity)
type: PropertyValue
value: 0.515

Loudness (dB)
type: PropertyValue
value: -9.667

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

Antologia, Vol.4: Mano a Mano
type: MusicAlbum
date published: 2023-04-28

Contando Tangos
type: MusicAlbum
date published: 2024-10-11