Retro 25
type: MusicGroup
popularity: 5
followers: 61
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9b095f25ba4f1a7b05198f4ba1542faa8286139845558893c9c212b432250ec9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/53438dc2-033b-4c3c-9abc-0c78656d21d2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/53438dc2-033b-4c3c-9abc-0c78656d21d2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/53438dc2-033b-4c3c-9abc-0c78656d21d2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9b095f25ba4f1a7b05198f4ba1542faa8286139845558893c9c212b432250ec9","name":"Retro 25","registered_at":"2026-06-16T18:34:59Z","symbol":"NIM1139517","token_address":"0xefb134fcf4053807c12e11608fad9708657c9492","type":"artist","uuid":"53438dc2-033b-4c3c-9abc-0c78656d21d2"}
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 0x9b095f25ba4f1a7b05198f4ba1542faa8286139845558893c9c212b432250ec9. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/53438dc2-033b-4c3c-9abc-0c78656d21d2.json and https://artists.proofprofile.net/proofs/artist/53438dc2-033b-4c3c-9abc-0c78656d21d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x9b095f25ba4f1a7b05198f4ba1542faa8286139845558893c9c212b432250ec9","name":"Retro 25","registered_at":"2026-06-16T18:34:59Z","symbol":"NIM1139517","token_address":"0xefb134fcf4053807c12e11608fad9708657c9492","type":"artist","uuid":"53438dc2-033b-4c3c-9abc-0c78656d21d2"}
album: Uno Mexicano
  type: MusicAlbum
  date published: 2023-02-19
album: Celebramos por lo bueno
  type: MusicAlbum
  date published: 2023-02-21
album: Diciembre
  type: MusicAlbum
  date published: 2023-02-21
album: Perdiendo la cordura
  type: MusicAlbum
  date published: 2023-02-21
album: flow malandro
  type: MusicAlbum
  date published: 2023-02-21
album: Estamos de vuelta
  type: MusicAlbum
  date published: 2023-02-21
album: Canto lo que quiero
  type: MusicAlbum
  date published: 2023-02-21
album: Sigo en lo mio
  type: MusicAlbum
  date published: 2023-02-21
album: Dulce dolor
  type: MusicAlbum
  date published: 2023-02-21
  track: Dulce dolor
    type: MusicRecording
    duration: PT3M30S
    duration ms: 210047
    explicit: true
    by artist: Retro 25
    in album: Dulce dolor
      type: MusicAlbum
      date published: 2023-02-21
    isrc code: QZDA82333329
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T14:52:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x87f71abb5c17a2f68c85a27d533b6900a7c5a87394e40894ab9265fc289e58fd
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82333329
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f71abb5c17a2f68c85a27d533b6900a7c5a87394e40894ab9265fc289e58fd. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZDA82333329.
      date published: 2026-07-05T18:48:28Z
    audio: Dulce dolor
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 88.043
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.787
      additional property: Energy
        type: PropertyValue
        value: 0.536
      additional property: Speechiness
        type: PropertyValue
        value: 0.231
      additional property: Acousticness
        type: PropertyValue
        value: 0.802
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.262
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.691
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.317
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Musica de callejon x anibal shac
  type: MusicAlbum
  date published: 2023-02-21
album: La ultima carta xl
  type: MusicAlbum
  date published: 2023-02-22
album: Arriba voy
  type: MusicAlbum
  date published: 2023-02-25
album: Cometa Halley
  type: MusicAlbum
  date published: 2023-03-19
album: ella necesita
  type: MusicAlbum
  date published: 2023-05-09
album: Catarsis
  type: MusicAlbum
  date published: 2023-07-04
album: Cumbia de calle
  type: MusicAlbum
  date published: 2023-07-23
album: una historia mas
  type: MusicAlbum
  date published: 2023-10-16
album: Rayas de molly
  type: MusicAlbum
  date published: 2023-11-28
album: La patrona v1
  type: MusicAlbum
  date published: 2023-12-12