Krootozaure
type: MusicGroup
popularity: 9
followers: 128
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfcba3fd1b42c054d15cd1e5d36ed85dd0d2258b15d19f37b05d5d75a1e7bceba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4385273-0100-444e-8135-c3b17f3f9f5d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4385273-0100-444e-8135-c3b17f3f9f5d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a4385273-0100-444e-8135-c3b17f3f9f5d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
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 0xfcba3fd1b42c054d15cd1e5d36ed85dd0d2258b15d19f37b05d5d75a1e7bceba. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4385273-0100-444e-8135-c3b17f3f9f5d.json and https://artists.proofprofile.net/proofs/artist/a4385273-0100-444e-8135-c3b17f3f9f5d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
album: Bloody Killer Mood
  type: MusicAlbum
  date published: 2019-05-10
  track: Butter Knife
    type: MusicRecording
    duration: PT1M2S
    duration ms: 62067
    explicit: false
    by artist: Krootozaure
    in album: Bloody Killer Mood
      type: MusicAlbum
      date published: 2019-05-10
    isrc code: NL1AP1932236
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T23:06:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5a4867e8ee3126e9787d3c4230b562cf7f7032f37eb1db28b1ac7d110008e5cb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957771
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957771
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL1AP1932236
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T23:27:28Z
    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 0x5a4867e8ee3126e9787d3c4230b562cf7f7032f37eb1db28b1ac7d110008e5cb. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/NL1AP1932236.
      date published: 2026-07-12T23:27:28Z
    audio: Butter Knife
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 106.873
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.247
      additional property: Energy
        type: PropertyValue
        value: 0.664
      additional property: Speechiness
        type: PropertyValue
        value: 0.057
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.95
      additional property: Liveness
        type: PropertyValue
        value: 0.207
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.235
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.455
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Colt Cowboy
    type: MusicRecording
    duration: PT1M1S
    duration ms: 61154
    explicit: false
    by artist: Krootozaure
    in album: Bloody Killer Mood
      type: MusicAlbum
      date published: 2019-05-10
    isrc code: NL1AP1932239
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-02T21:46:11+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb0d8fec9c0575e167a0735190da87bb3c4fef1819581a4052b98a2c41def8f73
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956420
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956420
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL1AP1932239
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T04:06:57Z
    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 0xb0d8fec9c0575e167a0735190da87bb3c4fef1819581a4052b98a2c41def8f73. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:06:57Z), 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/NL1AP1932239.
      date published: 2026-07-17T04:06:57Z
    audio: Colt Cowboy
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 180.122
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.622
      additional property: Energy
        type: PropertyValue
        value: 0.687
      additional property: Speechiness
        type: PropertyValue
        value: 0.267
      additional property: Acousticness
        type: PropertyValue
        value: 0.443
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.904
      additional property: Liveness
        type: PropertyValue
        value: 0.167
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.595
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.319
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name

Mode Name
type: PropertyValue
value: Major

Bloody Killer Mood
type: MusicAlbum
date published: 2019-05-10