Karel Silalahi
type: MusicGroup
genre: batak
popularity: 4
followers: 32
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa22ee512109dd053bcd4c15ff652bb9558d4af119f5ed7222096913500c2b26b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953882
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953882
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/09c28135-203c-43bf-ad4b-645333ad6678.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/09c28135-203c-43bf-ad4b-645333ad6678.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/09c28135-203c-43bf-ad4b-645333ad6678
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T03:13:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa22ee512109dd053bcd4c15ff652bb9558d4af119f5ed7222096913500c2b26b","name":"Karel Silalahi","registered_at":"2026-06-15T17:09:14Z","symbol":"NIM0775379","token_address":"0xc0e85aac334f8470b700b5547999231c228fbc42","type":"artist","uuid":"09c28135-203c-43bf-ad4b-645333ad6678"}
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 0xa22ee512109dd053bcd4c15ff652bb9558d4af119f5ed7222096913500c2b26b. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09c28135-203c-43bf-ad4b-645333ad6678.json and https://artists.proofprofile.net/proofs/artist/09c28135-203c-43bf-ad4b-645333ad6678.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0xa22ee512109dd053bcd4c15ff652bb9558d4af119f5ed7222096913500c2b26b","name":"Karel Silalahi","registered_at":"2026-06-15T17:09:14Z","symbol":"NIM0775379","token_address":"0xc0e85aac334f8470b700b5547999231c228fbc42","type":"artist","uuid":"09c28135-203c-43bf-ad4b-645333ad6678"}
album: Tangiang Ni Dainang
  type: MusicAlbum
  date published: 2019-11-07
  track: Tangiang Ni Dainang
    type: MusicRecording
    duration: PT4M24S
    duration ms: 264288
    explicit: false
    by artist: Karel Silalahi
    in album: Tangiang Ni Dainang
      type: MusicAlbum
      date published: 2019-11-07
    genre: batak
    isrc code: FRX201934875
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T16:52:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x99231f439819135c5a75522dbbfd8400379a2e335856a628e26e98260e60218f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956576
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956576
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX201934875
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T02:06:47Z
    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 0x99231f439819135c5a75522dbbfd8400379a2e335856a628e26e98260e60218f. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/FRX201934875.
      date published: 2026-07-04T02:06:47Z
    audio: Tangiang Ni Dainang
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 97.478
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.547
      additional property: Energy
        type: PropertyValue
        value: 0.477
      additional property: Speechiness
        type: PropertyValue
        value: 0.024
      additional property: Acousticness
        type: PropertyValue
        value: 0.645
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.22
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.293
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.623
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Angels We Have Heard on High
  type: MusicAlbum
  date published: 2020-12-18
album: Ku Tau Kau Setia
  type: MusicAlbum
  date published: 2021-11-01
album: Rela Tanpamu
  type: MusicAlbum
  date published: 2025-04-05