Certamente Roma
type: MusicGroup
genre: argentine rock
popularity: 3
followers: 382
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9409d65fcccaaba9628745f21b74ffeef0c66cbd92e6a44ae573362d9b2ae4e4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954004
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954004
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/32e7d433-92d5-4e00-90f3-860357aa9254.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/32e7d433-92d5-4e00-90f3-860357aa9254.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/32e7d433-92d5-4e00-90f3-860357aa9254
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T21:01:04Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9409d65fcccaaba9628745f21b74ffeef0c66cbd92e6a44ae573362d9b2ae4e4","name":"Certamente Roma","registered_at":"2026-06-16T07:17:29Z","symbol":"NIM0977858","token_address":"0xabc9e4e1917e6213116654b4e66604da83864e16","type":"artist","uuid":"32e7d433-92d5-4e00-90f3-860357aa9254"}
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 0x9409d65fcccaaba9628745f21b74ffeef0c66cbd92e6a44ae573362d9b2ae4e4. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32e7d433-92d5-4e00-90f3-860357aa9254.json and https://artists.proofprofile.net/proofs/artist/32e7d433-92d5-4e00-90f3-860357aa9254.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0x9409d65fcccaaba9628745f21b74ffeef0c66cbd92e6a44ae573362d9b2ae4e4","name":"Certamente Roma","registered_at":"2026-06-16T07:17:29Z","symbol":"NIM0977858","token_address":"0xabc9e4e1917e6213116654b4e66604da83864e16","type":"artist","uuid":"32e7d433-92d5-4e00-90f3-860357aa9254"}
album: Después de la Guerra
  type: MusicAlbum
  date published: 1988-11-04
  track: Quebrados en el Silencio - Remastered 2019
    type: MusicRecording
    duration: PT3M33S
    duration ms: 213107
    explicit: false
    by artist: Certamente Roma
    in album: Después de la Guerra
      type: MusicAlbum
      date published: 1988-11-04
    genre: argentine rock
    isrc code: ARDF31900007
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T06:54:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2180ab8fff6ea1504bc6be0d76ecd40637c1e9a5cc04e70a433a9615d1038aa0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958690
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958690
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARDF31900007
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T07:14:39Z
    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 0x2180ab8fff6ea1504bc6be0d76ecd40637c1e9a5cc04e70a433a9615d1038aa0. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ARDF31900007.
      date published: 2026-07-19T07:14:39Z
    audio: Quebrados en el Silencio - Remastered 2019
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 103.204
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.285
      additional property: Energy
        type: PropertyValue
        value: 0.905
      additional property: Speechiness
        type: PropertyValue
        value: 0.064
      additional property: Acousticness
        type: PropertyValue
        value: 0.014
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.453
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.423
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.296
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major