Constrict
type: MusicGroup
genre: deathstep
genre: witch house
popularity: 7
followers: 50
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5ea81cfb98d7e505d24d91841a0c9707f61a33b1a35ffad3cd30a0883aef5c4c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ef639dfb-5516-4b78-a70b-6df90055da0f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ef639dfb-5516-4b78-a70b-6df90055da0f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ef639dfb-5516-4b78-a70b-6df90055da0f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
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 0x5ea81cfb98d7e505d24d91841a0c9707f61a33b1a35ffad3cd30a0883aef5c4c. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef639dfb-5516-4b78-a70b-6df90055da0f.json and https://artists.proofprofile.net/proofs/artist/ef639dfb-5516-4b78-a70b-6df90055da0f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
album: With many voices
  type: MusicAlbum
  date published: 2023-03-09
album: Indestructible Reptile
  type: MusicAlbum
  date published: 2023-05-10
  track: Indestructible Reptile
    type: MusicRecording
    duration: PT4M41S
    duration ms: 281142
    explicit: false
    by artist: Constrict
    in album: Indestructible Reptile
      type: MusicAlbum
      date published: 2023-05-10
    genre: deathstep
    genre: witch house
    isrc code: TCAHC2327535
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T12:08:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x10ad5c5cfeddfeeaef111cdf17972c875c85ff8c16b014f624522ab7197ea9f8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957703
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957703
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAHC2327535
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T12:26:40Z
    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 0x10ad5c5cfeddfeeaef111cdf17972c875c85ff8c16b014f624522ab7197ea9f8. Chain 2 (Bitcoin): anchored in block 957703 (2026-07-12T12:26:40Z), 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/TCAHC2327535.
      date published: 2026-07-12T12:26:40Z
    audio: Indestructible Reptile
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 139.933
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.398
      additional property: Energy
        type: PropertyValue
        value: 0.785
      additional property: Speechiness
        type: PropertyValue
        value: 0.179
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.383
      additional property: Liveness
        type: PropertyValue
        value: 0.119
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.146
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.155
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: The Visitor
  type: MusicAlbum
  date published: 2023-06-06
album: Ancients Awakened
  type: MusicAlbum
  date published: 2023-07-09
album: Emotional Decay
  type: MusicAlbum
  date published: 2023-11-24
album: Anantashesha
  type: MusicAlbum
  date published: 2024-03-19
album: With Many Voices (MVHA Remix)
  type: MusicAlbum
  date published: 2024-03-25
album: Dark Matter
  type: MusicAlbum
  date published: 2024-04-14
album: Left in Darkness
  type: MusicAlbum
  date published: 2025-01-09
album: In the Shadows
  type: MusicAlbum
  date published: 2025-01-25
album: Graboid
  type: MusicAlbum
  date published: 2025-03-20