Safari Kwartet
type: MusicGroup
popularity: 9
followers: 174
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8f52586a13f086913e22b3289dbf657e4136e381b91194ec0577edb8af77a9b9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c253c9a7-8408-48ea-ba79-182f6c1aa1ff.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c253c9a7-8408-48ea-ba79-182f6c1aa1ff.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c253c9a7-8408-48ea-ba79-182f6c1aa1ff
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8f52586a13f086913e22b3289dbf657e4136e381b91194ec0577edb8af77a9b9","name":"Safari Kwartet","registered_at":"2026-06-20T19:38:09Z","symbol":"NIM1695211","token_address":"0x227b14170e48fff2b0a6a9d6bfdecf19d7812816","type":"artist","uuid":"c253c9a7-8408-48ea-ba79-182f6c1aa1ff"}
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 0x8f52586a13f086913e22b3289dbf657e4136e381b91194ec0577edb8af77a9b9. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c253c9a7-8408-48ea-ba79-182f6c1aa1ff.json and https://artists.proofprofile.net/proofs/artist/c253c9a7-8408-48ea-ba79-182f6c1aa1ff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x8f52586a13f086913e22b3289dbf657e4136e381b91194ec0577edb8af77a9b9","name":"Safari Kwartet","registered_at":"2026-06-20T19:38:09Z","symbol":"NIM1695211","token_address":"0x227b14170e48fff2b0a6a9d6bfdecf19d7812816","type":"artist","uuid":"c253c9a7-8408-48ea-ba79-182f6c1aa1ff"}
album: Krabbekriebels
  type: MusicAlbum
  date published: 2003-02-01
  track: Krabbegatje
    type: MusicRecording
    duration: PT3M22S
    duration ms: 202200
    explicit: false
    by artist: Safari Kwartet
    in album: Krabbekriebels
      type: MusicAlbum
      date published: 2003-02-01
    isrc code: NL1VU2201220
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T02:15:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5dd9ba560d7c4a72b5b1c17162ee6e36b9bbbd7ef47ce943334a4e08455678c9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958955
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958955
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL1VU2201220
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T05:17:31Z
    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 0x5dd9ba560d7c4a72b5b1c17162ee6e36b9bbbd7ef47ce943334a4e08455678c9. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:17:31Z), 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/NL1VU2201220.
      date published: 2026-07-21T05:17:31Z
    audio: Krabbegatje
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 121.966
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.747
      additional property: Energy
        type: PropertyValue
        value: 0.837
      additional property: Speechiness
        type: PropertyValue
        value: 0.041
      additional property: Acousticness
        type: PropertyValue
        value: 0.762
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.065
      additional property: Liveness
        type: PropertyValue
        value: 0.076
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.975
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.727
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Bergse Kefeekes
    type: MusicRecording
    duration: PT3M2S
    duration ms: 182066
    explicit: false
    by artist: Safari Kwartet
    in album: Krabbekriebels
      type: MusicAlbum
      date published: 2003-02-01
    isrc code: NL1VU2201221
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T00:03:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x685701b1b5911e903936e552d728c0dcdb56b3dc1c844e12952af6ceba1359a1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL1VU2201221
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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 0x685701b1b5911e903936e552d728c0dcdb56b3dc1c844e12952af6ceba1359a1. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NL1VU2201221.
      date published: 2026-07-06T01:25:57Z
    audio: Bergse Kefeekes
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 122.326
      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: 0.784
      additional property: Energy
        type: PropertyValue
        value: 0.723
      additional property: Speechiness
        type: PropertyValue
        value: 0.086
      additional property: Acousticness
        type: PropertyValue
        value: 0.207
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.072
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.95
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.807
      additional property: Key Name
      additional property: Mode Name
album: Reunie CD

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

Reunie CD
type: MusicAlbum
date published: 2003-02-01