María Medina
type: MusicGroup
popularity: 3
followers: 48
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbd8f1a55c58489529eacffa10a89fc24330d4bdd2cb1d47dbc16137085aea4b2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ff4f8af4-36b0-4891-b786-50b102fbbf55.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ff4f8af4-36b0-4891-b786-50b102fbbf55.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ff4f8af4-36b0-4891-b786-50b102fbbf55
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T20:46:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbd8f1a55c58489529eacffa10a89fc24330d4bdd2cb1d47dbc16137085aea4b2","name":"María Medina","registered_at":"2026-06-21T18:32:02Z","symbol":"NIM2000466","token_address":"0x00d7137a2f5ac105ab42ad70087f627b516663df","type":"artist","uuid":"ff4f8af4-36b0-4891-b786-50b102fbbf55"}
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 0xbd8f1a55c58489529eacffa10a89fc24330d4bdd2cb1d47dbc16137085aea4b2. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff4f8af4-36b0-4891-b786-50b102fbbf55.json and https://artists.proofprofile.net/proofs/artist/ff4f8af4-36b0-4891-b786-50b102fbbf55.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T20:46:40Z
  text: {"copyright_id":"0xbd8f1a55c58489529eacffa10a89fc24330d4bdd2cb1d47dbc16137085aea4b2","name":"María Medina","registered_at":"2026-06-21T18:32:02Z","symbol":"NIM2000466","token_address":"0x00d7137a2f5ac105ab42ad70087f627b516663df","type":"artist","uuid":"ff4f8af4-36b0-4891-b786-50b102fbbf55"}
album: Agua de mar
  type: MusicAlbum
  date published: 2025-05-09
  track: Agua de mar
    type: MusicRecording
    duration: PT3M32S
    duration ms: 212169
    explicit: false
    by artist: María Medina
    in album: Agua de mar
      type: MusicAlbum
      date published: 2025-05-09
    isrc code: QZTV32565253
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T12:43:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x045dcf290b9cc4f74751e800d6aa20889d9e224c9ed51dccce89e2592946d27a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958885
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958885
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTV32565253
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T15:44:33Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045dcf290b9cc4f74751e800d6aa20889d9e224c9ed51dccce89e2592946d27a. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:44:33Z), 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/QZTV32565253.
      date published: 2026-07-20T15:44:33Z
    audio: Agua de mar
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 155.032
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.508
      additional property: Energy
        type: PropertyValue
        value: 0.555
      additional property: Speechiness
        type: PropertyValue
        value: 0.054
      additional property: Acousticness
        type: PropertyValue
        value: 0.619
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.86
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.173
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.373
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor