mariin k.
type: MusicGroup
genre: dream pop
genre: shoegaze
popularity: 7
followers: 253
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcf49d602ab4b6b333c9e4bf278dbc56fdb8f25cb3b86f743312f94a5c51f10ad
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/59396752-883a-4722-a811-c51722263e09.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/59396752-883a-4722-a811-c51722263e09.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/59396752-883a-4722-a811-c51722263e09
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcf49d602ab4b6b333c9e4bf278dbc56fdb8f25cb3b86f743312f94a5c51f10ad","name":"mariin k.","registered_at":"2026-06-16T20:39:54Z","symbol":"NIM1169327","token_address":"0xffad5ca7890463bff1242a7553d236edd26dfc49","type":"artist","uuid":"59396752-883a-4722-a811-c51722263e09"}
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 0xcf49d602ab4b6b333c9e4bf278dbc56fdb8f25cb3b86f743312f94a5c51f10ad. 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/59396752-883a-4722-a811-c51722263e09.json and https://artists.proofprofile.net/proofs/artist/59396752-883a-4722-a811-c51722263e09.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xcf49d602ab4b6b333c9e4bf278dbc56fdb8f25cb3b86f743312f94a5c51f10ad","name":"mariin k.","registered_at":"2026-06-16T20:39:54Z","symbol":"NIM1169327","token_address":"0xffad5ca7890463bff1242a7553d236edd26dfc49","type":"artist","uuid":"59396752-883a-4722-a811-c51722263e09"}
album: mirror 9
  type: MusicAlbum
  date published: 2021-11-09
album: in your mind
  type: MusicAlbum
  date published: 2023-12-15
album: beach
  type: MusicAlbum
  date published: 2024-08-22
album: free alice
  type: MusicAlbum
  date published: 2025-02-28
  track: free alice
    type: MusicRecording
    duration: PT3M8S
    duration ms: 188614
    explicit: true
    by artist: mariin k.
    in album: free alice
      type: MusicAlbum
      date published: 2025-02-28
    genre: dream pop
    genre: shoegaze
    isrc code: QM4TX2529700
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T03:01:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x465b66d01f49e186ad8683812a67fc13f35e08ae993671c4c5fafb7b0c653cbb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958234
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958234
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2529700
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T03:46:09Z
    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 0x465b66d01f49e186ad8683812a67fc13f35e08ae993671c4c5fafb7b0c653cbb. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QM4TX2529700.
      date published: 2026-07-16T03:46:09Z
    audio: free alice
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 86.938
      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: 0.416
      additional property: Energy
        type: PropertyValue
        value: 0.778
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.034
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.742
      additional property: Liveness
        type: PropertyValue
        value: 0.288
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.342
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.026
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: rose skin
  type: MusicAlbum
  date published: 2025-05-08