KAN TAKAHIKO
type: MusicGroup
popularity: 2
followers: 13
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc95d565acfe364302ec58358c1435b1caaf34af356b0c71f32b0ddf5e3422c0c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953947
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953947
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2235adb2-ae6d-4e66-8b2e-c90963f43bd7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2235adb2-ae6d-4e66-8b2e-c90963f43bd7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2235adb2-ae6d-4e66-8b2e-c90963f43bd7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:14:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc95d565acfe364302ec58358c1435b1caaf34af356b0c71f32b0ddf5e3422c0c","name":"KAN TAKAHIKO","registered_at":"2026-06-16T01:28:21Z","symbol":"NIM0894457","token_address":"0x216a99a4b91392f73c281908b34b86ac44e83a63","type":"artist","uuid":"2235adb2-ae6d-4e66-8b2e-c90963f43bd7"}
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 0xc95d565acfe364302ec58358c1435b1caaf34af356b0c71f32b0ddf5e3422c0c. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2235adb2-ae6d-4e66-8b2e-c90963f43bd7.json and https://artists.proofprofile.net/proofs/artist/2235adb2-ae6d-4e66-8b2e-c90963f43bd7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0xc95d565acfe364302ec58358c1435b1caaf34af356b0c71f32b0ddf5e3422c0c","name":"KAN TAKAHIKO","registered_at":"2026-06-16T01:28:21Z","symbol":"NIM0894457","token_address":"0x216a99a4b91392f73c281908b34b86ac44e83a63","type":"artist","uuid":"2235adb2-ae6d-4e66-8b2e-c90963f43bd7"}
track: Silent Message - KAN TAKAHIKO Remix

Silent Message - KAN TAKAHIKO Remix
type: MusicRecording
duration: PT4M24S
duration ms: 264000
explicit: false
by artist: [Anthos]影河凌駕(CV.濱野大輝)、灯堂理人(CV.伊東健人)、チセ(CV.駒田航)、如月薫(CV.土岐隼一)、結城眞紘(CV.山下誠一郎)、清瀬陽汰(CV.増田俊樹)
by artist: KAN TAKAHIKO
in album: 華Doll* Anthos (Flowering Remix)
  type: MusicAlbum
  date published: 2021-08-20
isrc code: JPR502151200
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:51:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbdd95053f0bb92d6cf7b7640fb19d3d6d13ff28b00ca0dd5cc16a26f08a1394d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPR502151200
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+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 0xbdd95053f0bb92d6cf7b7640fb19d3d6d13ff28b00ca0dd5cc16a26f08a1394d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPR502151200.
  date published: 2026-07-08T03:20:19Z
audio: Silent Message - KAN TAKAHIKO Remix
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.2
  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: 0.699
  additional property: Energy
    type: PropertyValue
    value: 0.518
  additional property: Speechiness
    type: PropertyValue
    value: 0.067
  additional property: Acousticness
    type: PropertyValue
    value: 0.652
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.128
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.364
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.085
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor