Ski Skład
type: MusicGroup
popularity: 4
followers: 19
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc744f5475876c5e339bbc26d5b9b635a6c5ee0814ab91c9b8b2b600c7b205ace
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954047
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954047
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41aa8b1f-dfcc-4bb8-9f3c-4b909c2b34a0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41aa8b1f-dfcc-4bb8-9f3c-4b909c2b34a0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/41aa8b1f-dfcc-4bb8-9f3c-4b909c2b34a0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:56:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc744f5475876c5e339bbc26d5b9b635a6c5ee0814ab91c9b8b2b600c7b205ace","name":"Ski Skład","registered_at":"2026-06-16T12:42:51Z","symbol":"NIM1055500","token_address":"0x3de0015095f458d3fdb804bbd6add578d6396ad5","type":"artist","uuid":"41aa8b1f-dfcc-4bb8-9f3c-4b909c2b34a0"}
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 0xc744f5475876c5e339bbc26d5b9b635a6c5ee0814ab91c9b8b2b600c7b205ace. 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/41aa8b1f-dfcc-4bb8-9f3c-4b909c2b34a0.json and https://artists.proofprofile.net/proofs/artist/41aa8b1f-dfcc-4bb8-9f3c-4b909c2b34a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xc744f5475876c5e339bbc26d5b9b635a6c5ee0814ab91c9b8b2b600c7b205ace","name":"Ski Skład","registered_at":"2026-06-16T12:42:51Z","symbol":"NIM1055500","token_address":"0x3de0015095f458d3fdb804bbd6add578d6396ad5","type":"artist","uuid":"41aa8b1f-dfcc-4bb8-9f3c-4b909c2b34a0"}
track: Kontrast

Kontrast
type: MusicRecording
duration: PT4M52S
duration ms: 292466
explicit: false
by artist: Owal Emcedwa
by artist: Ski Skład
in album: Rapnastyk
  type: MusicAlbum
  date published: 2002-01-01
genre: polish-old-school-hip-hop
isrc code: PLC061303063
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T08:37:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xca8c63baf3cf5d173ce8f99cc66ebcdcd4ed3455ff01f60607d537d4b23c2fca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLC061303063
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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
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: 956302
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:30:09+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 0xca8c63baf3cf5d173ce8f99cc66ebcdcd4ed3455ff01f60607d537d4b23c2fca. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/PLC061303063.
  date published: 2026-07-02T03:30:09Z
audio: Kontrast
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 113.252
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.825
  additional property: Energy
    type: PropertyValue
    value: 0.605
  additional property: Speechiness
    type: PropertyValue
    value: 0.216
  additional property: Acousticness
    type: PropertyValue
    value: 0.179
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.347
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.68
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.008
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor