Trio Simervara
type: MusicGroup
genre: batak
popularity: 8
followers: 175
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x49d4cd59f92b7ee55336c7c94b44a9127df83465cf5b55224f4128e22bb2689a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/74b478cd-49e5-45bb-855d-37e5b690b4e3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/74b478cd-49e5-45bb-855d-37e5b690b4e3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/74b478cd-49e5-45bb-855d-37e5b690b4e3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x49d4cd59f92b7ee55336c7c94b44a9127df83465cf5b55224f4128e22bb2689a","name":"Trio Simervara","registered_at":"2026-06-17T06:19:45Z","symbol":"NIM1307689","token_address":"0xb1b75f8b20389eeb6ba53a9e748d68b1760cdad3","type":"artist","uuid":"74b478cd-49e5-45bb-855d-37e5b690b4e3"}
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 0x49d4cd59f92b7ee55336c7c94b44a9127df83465cf5b55224f4128e22bb2689a. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/74b478cd-49e5-45bb-855d-37e5b690b4e3.json and https://artists.proofprofile.net/proofs/artist/74b478cd-49e5-45bb-855d-37e5b690b4e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x49d4cd59f92b7ee55336c7c94b44a9127df83465cf5b55224f4128e22bb2689a","name":"Trio Simervara","registered_at":"2026-06-17T06:19:45Z","symbol":"NIM1307689","token_address":"0xb1b75f8b20389eeb6ba53a9e748d68b1760cdad3","type":"artist","uuid":"74b478cd-49e5-45bb-855d-37e5b690b4e3"}
album: Trio Simervara
  type: MusicAlbum
  date published: 2007-06-20
album: Album Seleksi Lagu Hits Pak Pak
  type: MusicAlbum
  date published: 2011-06-09
  track: Ntedoh Mulak
    type: MusicRecording
    duration: PT5M47S
    duration ms: 347141
    explicit: false
    by artist: Trio Simervara
    in album: Album Seleksi Lagu Hits Pak Pak
      type: MusicAlbum
      date published: 2011-06-09
    genre: batak
    isrc code: FRX282118711
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T20:36:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x97b44075c0952048bbc191b127642ff98fe86f0c045ac2dba92917d83e3b2021
    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/FRX282118711
    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 0x97b44075c0952048bbc191b127642ff98fe86f0c045ac2dba92917d83e3b2021. 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/FRX282118711.
      date published: 2026-07-05T01:12:41Z
    audio: Ntedoh Mulak
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.391
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.572
      additional property: Energy
        type: PropertyValue
        value: 0.55
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.602
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.002
      additional property: Liveness
        type: PropertyValue
        value: 0.274
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.513
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.517
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Memory Himpak
    type: MusicRecording
    duration: PT5M46S
    duration ms: 346409
    explicit: false
    by artist: Trio Simervara
    in album: Album Seleksi Lagu Hits Pak Pak
      type: MusicAlbum
      date published: 2011-06-09
    genre: batak
    isrc code: FRX282118715
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T15:35:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6b917e3b6f5245dd92424cce66d0fe34d296c4aae246646c6f7d4ad7592042ca
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959145
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959145
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX282118715
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T15:39:05Z
    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 0x6b917e3b6f5245dd92424cce66d0fe34d296c4aae246646c6f7d4ad7592042ca. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/FRX282118715.
      date published: 2026-07-22T15:39:05Z
    audio: Memory Himpak
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.137
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.567
      additional property: Energy
        type: PropertyValue
        value: 0.376
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.426
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.199
      additional property: Liveness
        type: PropertyValue
        value: 0.138
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Valence (Positivity)
type: PropertyValue
value: 0.423

Loudness (dB)
type: PropertyValue
value: -13.704

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major