Romansa Trio
type: MusicGroup
genre: batak
popularity: 3
followers: 139
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4ac9405910c871f395303be29f03902e7e41713b6bd3948aed8d51365e48e491
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/85eedb5f-faff-4a7f-b6d3-be96e8f42094.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/85eedb5f-faff-4a7f-b6d3-be96e8f42094.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/85eedb5f-faff-4a7f-b6d3-be96e8f42094
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4ac9405910c871f395303be29f03902e7e41713b6bd3948aed8d51365e48e491","name":"Romansa Trio","registered_at":"2026-06-17T12:44:09Z","symbol":"NIM1399315","token_address":"0xaf0c1afef53e87eee10daf16b8a80d4d02e2690e","type":"artist","uuid":"85eedb5f-faff-4a7f-b6d3-be96e8f42094"}
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 0x4ac9405910c871f395303be29f03902e7e41713b6bd3948aed8d51365e48e491. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/85eedb5f-faff-4a7f-b6d3-be96e8f42094.json and https://artists.proofprofile.net/proofs/artist/85eedb5f-faff-4a7f-b6d3-be96e8f42094.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x4ac9405910c871f395303be29f03902e7e41713b6bd3948aed8d51365e48e491","name":"Romansa Trio","registered_at":"2026-06-17T12:44:09Z","symbol":"NIM1399315","token_address":"0xaf0c1afef53e87eee10daf16b8a80d4d02e2690e","type":"artist","uuid":"85eedb5f-faff-4a7f-b6d3-be96e8f42094"}
album: Salendang Parpadanan
  type: MusicAlbum
  date published: 2021-04-17
album: Sasada Ho
  type: MusicAlbum
  date published: 2021-04-19
album: Dang Disi Beho
  type: MusicAlbum
  date published: 2021-04-22
album: Unang Sai Cemburu
  type: MusicAlbum
  date published: 2021-04-22
album: Di Tugu Monas
  type: MusicAlbum
  date published: 2021-04-23
  track: Di Tugu Monas
    type: MusicRecording
    duration: PT6M8S
    duration ms: 368158
    explicit: false
    by artist: Romansa Trio
    in album: Di Tugu Monas
      type: MusicAlbum
      date published: 2021-04-23
    genre: batak
    isrc code: FR59R2196374
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T03:47:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6e99f5202e4213749dd75f174a2e4cd2140782e8304eaff85d1cfe83307e3144
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956889
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956889
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59R2196374
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T06:56:49Z
    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 0x6e99f5202e4213749dd75f174a2e4cd2140782e8304eaff85d1cfe83307e3144. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR59R2196374.
      date published: 2026-07-06T06:56:49Z
    audio: Di Tugu Monas
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 143.875
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.455
      additional property: Energy
        type: PropertyValue
        value: 0.456
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.619
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.485
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.502
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.115
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Damang
  type: MusicAlbum
  date published: 2021-04-24
album: Gadis Melayu
  type: MusicAlbum
  date published: 2021-04-25
album: Sugari
  type: MusicAlbum
  date published: 2021-05-01
album: Bandara Sisingamangaraja XII Internasional
  type: MusicAlbum
  date published: 2021-12-11
album: Bunga Rose
  type: MusicAlbum
  date published: 2022-05-19