Maria Hutahaean
type: MusicGroup
genre: batak
popularity: 4
followers: 20
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x137e6c6cdf5623defac66faa5dca01d3dedc0011e0b8655c98eb7a3659134160
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/8f65abd4-17db-41dd-ba0f-c6da5b53588d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8f65abd4-17db-41dd-ba0f-c6da5b53588d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8f65abd4-17db-41dd-ba0f-c6da5b53588d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x137e6c6cdf5623defac66faa5dca01d3dedc0011e0b8655c98eb7a3659134160","name":"Maria Hutahaean","registered_at":"2026-06-17T15:38:39Z","symbol":"NIM1440894","token_address":"0x5132ce72440dc7fdc0fe319f3f74608293895613","type":"artist","uuid":"8f65abd4-17db-41dd-ba0f-c6da5b53588d"}
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 0x137e6c6cdf5623defac66faa5dca01d3dedc0011e0b8655c98eb7a3659134160. 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/8f65abd4-17db-41dd-ba0f-c6da5b53588d.json and https://artists.proofprofile.net/proofs/artist/8f65abd4-17db-41dd-ba0f-c6da5b53588d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x137e6c6cdf5623defac66faa5dca01d3dedc0011e0b8655c98eb7a3659134160","name":"Maria Hutahaean","registered_at":"2026-06-17T15:38:39Z","symbol":"NIM1440894","token_address":"0x5132ce72440dc7fdc0fe319f3f74608293895613","type":"artist","uuid":"8f65abd4-17db-41dd-ba0f-c6da5b53588d"}
album: Ise Do Au
  type: MusicAlbum
  date published: 2024-11-05
album: Imajinasiki
  type: MusicAlbum
  date published: 2024-11-18
album: Nasa Gogoki
  type: MusicAlbum
  date published: 2024-11-29
album: Songondia Ma Hubalos
  type: MusicAlbum
  date published: 2024-11-30
album: Sampe Andigan
  type: MusicAlbum
  date published: 2024-12-27
album: Abang Marga
  type: MusicAlbum
  date published: 2025-02-03
album: Sapata
  type: MusicAlbum
  date published: 2025-03-24
  track: Sapata
    type: MusicRecording
    duration: PT3M28S
    duration ms: 208214
    explicit: false
    by artist: Maria Hutahaean
    in album: Sapata
      type: MusicAlbum
      date published: 2025-03-24
    genre: batak
    isrc code: TCAJM2544922
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T12:20:04+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x73d5c5ebab2e1e875e6379e20193aa9623ff397692ae22df0ab1395a23c03a2e
    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/TCAJM2544922
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d5c5ebab2e1e875e6379e20193aa9623ff397692ae22df0ab1395a23c03a2e. 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/TCAJM2544922.
      date published: 2026-07-05T01:12:41Z
    audio: Sapata
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 104.989
      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: 0.819
      additional property: Energy
        type: PropertyValue
        value: 0.577
      additional property: Speechiness
        type: PropertyValue
        value: 0.045
      additional property: Acousticness
        type: PropertyValue
        value: 0.367
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.062
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.538
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.232
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor