The Swing Kittens
type: MusicGroup
genre: swing music
popularity: 6
followers: 164
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb69055476a2e190b1d4f070a4e0767c252eb5b232c0e50742cf699639457a5ab
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954623
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954623
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cba433af-0e59-4088-81a5-66b1d2beee7c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cba433af-0e59-4088-81a5-66b1d2beee7c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cba433af-0e59-4088-81a5-66b1d2beee7c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:40:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb69055476a2e190b1d4f070a4e0767c252eb5b232c0e50742cf699639457a5ab","name":"The Swing Kittens","registered_at":"2026-06-20T23:03:25Z","symbol":"NIM1742305","token_address":"0x64d7d8b25ec506107900f714fc3fffdccb3ef35d","type":"artist","uuid":"cba433af-0e59-4088-81a5-66b1d2beee7c"}
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 0xb69055476a2e190b1d4f070a4e0767c252eb5b232c0e50742cf699639457a5ab. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cba433af-0e59-4088-81a5-66b1d2beee7c.json and https://artists.proofprofile.net/proofs/artist/cba433af-0e59-4088-81a5-66b1d2beee7c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:40:06Z
  text: {"copyright_id":"0xb69055476a2e190b1d4f070a4e0767c252eb5b232c0e50742cf699639457a5ab","name":"The Swing Kittens","registered_at":"2026-06-20T23:03:25Z","symbol":"NIM1742305","token_address":"0x64d7d8b25ec506107900f714fc3fffdccb3ef35d","type":"artist","uuid":"cba433af-0e59-4088-81a5-66b1d2beee7c"}
album: Just "Kitten" Started
  type: MusicAlbum
  date published: 2012-03-06
album: Pokarekare Ana
  type: MusicAlbum
  date published: 2013-10-11
album: Chasing Winter
  type: MusicAlbum
  date published: 2015-09-23
album: South Rampart Street Parade
  type: MusicAlbum
  date published: 2017-08-29
album: Forever
  type: MusicAlbum
  date published: 2024-05-08
track: C'est si bon

C'est si bon
type: MusicRecording
duration: PT4M11S
duration ms: 251696
explicit: false
by artist: Ilya Serov
by artist: The Swing Kittens
in album: Back in Time
  type: MusicAlbum
  date published: 2018-09-10
isrc code: QMDLN1804001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T07:36:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcea08db3cf9ee8c68a96bb08568cf3cca1a4a69ac3eaaea28370969e21612b75
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/QMDLN1804001
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09+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: 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 0xcea08db3cf9ee8c68a96bb08568cf3cca1a4a69ac3eaaea28370969e21612b75. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMDLN1804001.
  date published: 2026-07-02T03:55:08Z
audio: C'est si bon
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.544
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.699
  additional property: Energy
    type: PropertyValue
    value: 0.461
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.658
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.092
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.623
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.692
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor