Messier 111
type: MusicGroup
popularity: 4
followers: 315
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xada81989ec8be7bfb529b0ceefdbc8f61591ce1ff15537d64069bbfa8d3fce13
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cf3e29f0-9cc0-4747-8673-ade5195bc9e6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cf3e29f0-9cc0-4747-8673-ade5195bc9e6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cf3e29f0-9cc0-4747-8673-ade5195bc9e6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xada81989ec8be7bfb529b0ceefdbc8f61591ce1ff15537d64069bbfa8d3fce13","name":"Messier 111","registered_at":"2026-06-21T00:28:45Z","symbol":"NIM1763421","token_address":"0xb10266b5af998f2dd836591e5bd12934a0b16742","type":"artist","uuid":"cf3e29f0-9cc0-4747-8673-ade5195bc9e6"}
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 0xada81989ec8be7bfb529b0ceefdbc8f61591ce1ff15537d64069bbfa8d3fce13. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cf3e29f0-9cc0-4747-8673-ade5195bc9e6.json and https://artists.proofprofile.net/proofs/artist/cf3e29f0-9cc0-4747-8673-ade5195bc9e6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0xada81989ec8be7bfb529b0ceefdbc8f61591ce1ff15537d64069bbfa8d3fce13","name":"Messier 111","registered_at":"2026-06-21T00:28:45Z","symbol":"NIM1763421","token_address":"0xb10266b5af998f2dd836591e5bd12934a0b16742","type":"artist","uuid":"cf3e29f0-9cc0-4747-8673-ade5195bc9e6"}
album: Vuelta al Sol
  type: MusicAlbum
  date published: 2019-11-11
album: Te Quedas o Te Vas
  type: MusicAlbum
  date published: 2019-12-11
album: Lo Que Fui
  type: MusicAlbum
  date published: 2020-01-11
album: Magia
  type: MusicAlbum
  date published: 2022-03-07
album: Nuclear
  type: MusicAlbum
  date published: 2022-10-19
album: Todo Lo Que Hay
  type: MusicAlbum
  date published: 2023-10-05
album: Par Eterno
  type: MusicAlbum
  date published: 2025-05-29
  track: Par Eterno
    type: MusicRecording
    duration: PT3M46S
    duration ms: 226259
    explicit: false
    by artist: Messier 111
    in album: Par Eterno
      type: MusicAlbum
      date published: 2025-05-29
    isrc code: QZTV32572958
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T20:06:24+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8b60376df1fcb73280b36e6c09a520a1cfc440b73c81b92e08a2de81c18a3cf9
    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/QZTV32572958
    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 0x8b60376df1fcb73280b36e6c09a520a1cfc440b73c81b92e08a2de81c18a3cf9. 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/QZTV32572958.
      date published: 2026-07-05T01:12:41Z
    audio: Par Eterno
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 131.007
      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: 0.545
      additional property: Energy
        type: PropertyValue
        value: 0.896
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.003
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.122
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.302
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.279
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor