斉藤誠
type: MusicGroup
genre: city pop
genre: jazz fusion
popularity: 2
followers: 26
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2e5b97421f257223ba0d9dbcb575cf433221e8b92693f5c556bd606d84b23de3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8a7cf89a-f9a4-4590-b9cb-c08bbd961276.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8a7cf89a-f9a4-4590-b9cb-c08bbd961276.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8a7cf89a-f9a4-4590-b9cb-c08bbd961276
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2e5b97421f257223ba0d9dbcb575cf433221e8b92693f5c556bd606d84b23de3","name":"斉藤誠","registered_at":"2026-06-17T14:00:07Z","symbol":"NIM1417370","token_address":"0x99594f9498ce0918913b10a60b56c6bacfb38f98","type":"artist","uuid":"8a7cf89a-f9a4-4590-b9cb-c08bbd961276"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5b97421f257223ba0d9dbcb575cf433221e8b92693f5c556bd606d84b23de3. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8a7cf89a-f9a4-4590-b9cb-c08bbd961276.json and https://artists.proofprofile.net/proofs/artist/8a7cf89a-f9a4-4590-b9cb-c08bbd961276.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x2e5b97421f257223ba0d9dbcb575cf433221e8b92693f5c556bd606d84b23de3","name":"斉藤誠","registered_at":"2026-06-17T14:00:07Z","symbol":"NIM1417370","token_address":"0x99594f9498ce0918913b10a60b56c6bacfb38f98","type":"artist","uuid":"8a7cf89a-f9a4-4590-b9cb-c08bbd961276"}
track: Vamp Street
  type: MusicRecording
  duration: PT5M55S
  duration ms: 355400
  explicit: false
  by artist: 奥慶一
  by artist: 岡本敦男
  by artist: 斉藤誠
  by artist: 幾見雅博
  by artist: 菊地康正
  by artist: 木村マコト
  in album: DIGGIN' VICTOR (The Compilation) Deep Into The Vaults Of Japanese Fusion & AOR selected by MURO
    type: MusicAlbum
    date published: 2018-05-09
  isrc code: JPVI00736350
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T06:49:16+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc7c3b1c94febe2d57a0e5cdcfd58d473682f67c53fb047b4e6a353596fbb0fd5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957055
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957055
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI00736350
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T15:12:44Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c3b1c94febe2d57a0e5cdcfd58d473682f67c53fb047b4e6a353596fbb0fd5. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/JPVI00736350.
    date published: 2026-07-07T15:12:44Z
  audio: Vamp Street
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 117.6
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.563
    additional property: Energy
      type: PropertyValue
      value: 0.764
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.051
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.638
    additional property: Liveness
      type: PropertyValue
      value: 0.116
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.888
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.77
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Vamp Street
  type: MusicRecording
  duration: PT5M9S
  duration ms: 309604
  explicit: false
  by artist: 奥慶一
  by artist: 岡本敦男
  by artist: 斉藤誠
  by artist: 幾見雅博
  by artist: 菊地康正
  by artist: 木村マコト
  in album: DIGGIN’ VICTOR Deep Into The Vaults Of Japanese Fusion mixed by MURO
    type: MusicAlbum
    date published: 2018-03-21
  isrc code: JPVI00736350
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T06:49:16+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc7c3b1c94febe2d57a0e5cdcfd58d473682f67c53fb047b4e6a353596fbb0fd5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957064
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957064
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI00736350
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T16:43:08Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c3b1c94febe2d57a0e5cdcfd58d473682f67c53fb047b4e6a353596fbb0fd5. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/JPVI00736350.
    date published: 2026-07-07T16:43:08Z
  audio: Vamp Street
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 116.031
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.597
    additional property: Energy
      type: PropertyValue
      value: 0.583
    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    additional property: Acousticness
      type: PropertyValue
      value: 0.046
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name

Instrumentalness
type: PropertyValue
value: 0.727

Liveness
type: PropertyValue
value: 0.15

Valence (Positivity)
type: PropertyValue
value: 0.799

Loudness (dB)
type: PropertyValue
value: -14.106

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major