Berra PK
type: MusicGroup
popularity: 28
followers: 326
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbe7737ab793a74d5b70eba7c9dd786604ef4073e92ebb12fda3ee1027efc21a3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e3d9151-dc17-4c75-aea1-bbe254c8fad9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e3d9151-dc17-4c75-aea1-bbe254c8fad9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8e3d9151-dc17-4c75-aea1-bbe254c8fad9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbe7737ab793a74d5b70eba7c9dd786604ef4073e92ebb12fda3ee1027efc21a3","name":"Berra PK","registered_at":"2026-06-12T04:18:05Z","symbol":"NIM0184525","token_address":"0xd0e18da365b9d721c69ff2f2be282a0fb1e5d27f","type":"artist","uuid":"8e3d9151-dc17-4c75-aea1-bbe254c8fad9"}
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 0xbe7737ab793a74d5b70eba7c9dd786604ef4073e92ebb12fda3ee1027efc21a3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e3d9151-dc17-4c75-aea1-bbe254c8fad9.json and https://artists.proofprofile.net/proofs/artist/8e3d9151-dc17-4c75-aea1-bbe254c8fad9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0xbe7737ab793a74d5b70eba7c9dd786604ef4073e92ebb12fda3ee1027efc21a3","name":"Berra PK","registered_at":"2026-06-12T04:18:05Z","symbol":"NIM0184525","token_address":"0xd0e18da365b9d721c69ff2f2be282a0fb1e5d27f","type":"artist","uuid":"8e3d9151-dc17-4c75-aea1-bbe254c8fad9"}
album: Als Ik Ga
  type: MusicAlbum
  date published: 2019-06-21
album: Damn
  type: MusicAlbum
  date published: 2019-11-19
album: Tank
  type: MusicAlbum
  date published: 2022-09-15
album: Rollerbank
  type: MusicAlbum
  date published: 2022-09-15
album: Dali (Picasso)
  type: MusicAlbum
  date published: 2023-11-24
album: Club Uitgezet
  type: MusicAlbum
  date published: 2024-03-15
album: Samen Zijn
  type: MusicAlbum
  date published: 2024-09-13
track: BLEM

BLEM
type: MusicRecording
duration: PT2M12S
duration ms: 132843
explicit: false
by artist: Floris Keijzer
by artist: Berra PK
in album: Commerciële Kunst
  type: MusicAlbum
  date published: 2025-03-28
isrc code: QZFYZ2492812
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T02:24:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2283eec78df61b2ad5a2550648a251a360d2523cbed9c63dfa1da8bde2fff479
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYZ2492812
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953520
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T13:32:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2283eec78df61b2ad5a2550648a251a360d2523cbed9c63dfa1da8bde2fff479. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZFYZ2492812.
  date published: 2026-06-13T15:41:10Z
audio: BLEM
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.385
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.898
  additional property: Energy
    type: PropertyValue
    value: 0.676
  additional property: Speechiness
    type: PropertyValue
    value: 0.067
  additional property: Acousticness
    type: PropertyValue
    value: 0.47
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.189
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.814
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.684
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor