fede marchini
type: MusicGroup
genre: rkt
genre: turreo
popularity: 10
followers: 172
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2150ff69082c708980d46876d09e8dfbe4a9bfc50d54b11e7bb5da0e4613f877
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a900037b-a779-402a-b0d0-62d022f95557.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a900037b-a779-402a-b0d0-62d022f95557.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a900037b-a779-402a-b0d0-62d022f95557
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2150ff69082c708980d46876d09e8dfbe4a9bfc50d54b11e7bb5da0e4613f877","name":"fede marchini","registered_at":"2026-06-20T08:32:20Z","symbol":"NIM1567306","token_address":"0xade99cedff330ed70b4f738b1d397d8ced866111","type":"artist","uuid":"a900037b-a779-402a-b0d0-62d022f95557"}
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 0x2150ff69082c708980d46876d09e8dfbe4a9bfc50d54b11e7bb5da0e4613f877. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a900037b-a779-402a-b0d0-62d022f95557.json and https://artists.proofprofile.net/proofs/artist/a900037b-a779-402a-b0d0-62d022f95557.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0x2150ff69082c708980d46876d09e8dfbe4a9bfc50d54b11e7bb5da0e4613f877","name":"fede marchini","registered_at":"2026-06-20T08:32:20Z","symbol":"NIM1567306","token_address":"0xade99cedff330ed70b4f738b1d397d8ced866111","type":"artist","uuid":"a900037b-a779-402a-b0d0-62d022f95557"}
album: Bailando
  type: MusicAlbum
  date published: 2022-05-25
album: Tus Lagrimas
  type: MusicAlbum
  date published: 2022-05-27
album: Como Te Va
  type: MusicAlbum
  date published: 2022-05-27
album: Si Estuviesemos Juntos
  type: MusicAlbum
  date published: 2022-05-27
  track: Si Estuviesemos Juntos
    type: MusicRecording
    duration: PT3M2S
    duration ms: 182307
    explicit: true
    by artist: fede marchini
    in album: Si Estuviesemos Juntos
      type: MusicAlbum
      date published: 2022-05-27
    genre: rkt
    genre: turreo
    isrc code: QZMZ92202648
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T19:18:45+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5b650e73b8a3a9d853a76b34ae0f6567a35c1487f7b1f52444171a7bcb77b18c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956738
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956738
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92202648
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T04:47:21Z
    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 0x5b650e73b8a3a9d853a76b34ae0f6567a35c1487f7b1f52444171a7bcb77b18c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZMZ92202648.
      date published: 2026-07-05T04:47:21Z
    audio: Si Estuviesemos Juntos
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 86.026
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.624
      additional property: Energy
        type: PropertyValue
        value: 0.271
      additional property: Speechiness
        type: PropertyValue
        value: 0.09
      additional property: Acousticness
        type: PropertyValue
        value: 0.246
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.104
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.263
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.047
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Nena Fichu
  type: MusicAlbum
  date published: 2022-12-24
album: Te Busco
  type: MusicAlbum
  date published: 2023-01-03