伊東海藝
type: MusicGroup
popularity: 7
followers: 27
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcfd2925240c1f2f8018b76f72f6e1f83c4cb9e2e3c150f970b1cd260e5fa4e25
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953950
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953950
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/24b0f7fd-deaf-4e5d-b29c-c7b5c3e42fe0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/24b0f7fd-deaf-4e5d-b29c-c7b5c3e42fe0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/24b0f7fd-deaf-4e5d-b29c-c7b5c3e42fe0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:35:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcfd2925240c1f2f8018b76f72f6e1f83c4cb9e2e3c150f970b1cd260e5fa4e25","name":"伊東海藝","registered_at":"2026-06-16T02:15:34Z","symbol":"NIM0905752","token_address":"0x84f9133a13e8622bcac169541000ce6ec99a6851","type":"artist","uuid":"24b0f7fd-deaf-4e5d-b29c-c7b5c3e42fe0"}
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 0xcfd2925240c1f2f8018b76f72f6e1f83c4cb9e2e3c150f970b1cd260e5fa4e25. Chain 2 (Bitcoin): anchored in block 953950 (2026-06-16T13:35:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/24b0f7fd-deaf-4e5d-b29c-c7b5c3e42fe0.json and https://artists.proofprofile.net/proofs/artist/24b0f7fd-deaf-4e5d-b29c-c7b5c3e42fe0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:35:39Z
  text: {"copyright_id":"0xcfd2925240c1f2f8018b76f72f6e1f83c4cb9e2e3c150f970b1cd260e5fa4e25","name":"伊東海藝","registered_at":"2026-06-16T02:15:34Z","symbol":"NIM0905752","token_address":"0x84f9133a13e8622bcac169541000ce6ec99a6851","type":"artist","uuid":"24b0f7fd-deaf-4e5d-b29c-c7b5c3e42fe0"}
album: 桜町の恋
  type: MusicAlbum
  date published: 2025-03-05
  track: 桜町の恋
    type: MusicRecording
    duration: PT3M29S
    duration ms: 209999
    explicit: false
    by artist: 伊東海藝
    in album: 桜町の恋
      type: MusicAlbum
      date published: 2025-03-05
    isrc code: TCJPE2511548
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T07:05:18+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6d41ced0b9c855ecb2ca77ab292ba5fc4e4560c2a08f80386707e5e631eba9ae
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957819
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957819
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPE2511548
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T07:53:33Z
    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 0x6d41ced0b9c855ecb2ca77ab292ba5fc4e4560c2a08f80386707e5e631eba9ae. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/TCJPE2511548.
      date published: 2026-07-13T07:53:33Z
    audio: 桜町の恋
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 72.083
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.581
      additional property: Energy
        type: PropertyValue
        value: 0.394
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.067
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.163
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.199
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.343
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Love and Sex
  type: MusicAlbum
  date published: 2025-03-05
album: 待宵の風
  type: MusicAlbum
  date published: 2025-03-08
  track: 待宵の風
    type: MusicRecording
    duration: PT3M44S
    duration ms: 224639
    explicit: false
    by artist: 伊東海藝
    in album: 待宵の風
      type: MusicAlbum
      date published: 2025-03-08
    isrc code: TCJPE2516298
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T06:51:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc7001dbb56f8d9845306b3acc81610cf4da0da03f5d31f343e1d50e55f3e9d51
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958380
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958380
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPE2516298
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T07:07:02Z
    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 0xc7001dbb56f8d9845306b3acc81610cf4da0da03f5d31f343e1d50e55f3e9d51. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/TCJPE2516298.
      date published: 2026-07-17T07:07:02Z
    audio: 待宵の風
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 87.917
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.743
      additional property: Energy
        type: PropertyValue
        value: 0.375
      additional property: Speechiness
        type: PropertyValue
        value: 0.169
      additional property: Acousticness
        type: PropertyValue
        value: 0.377
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.132
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: 電車の窓に映る影
album: オタクのラブストーリー
album: 前世記憶
album: 偶然の出会い
album: 静雨
album: 星影
album: 炎の戦歌
album: 君とまた出会えたなら
album: 時の誓い
album: 忘れられない初恋

Valence (Positivity)
type: PropertyValue
value: 0.247

Loudness (dB)
type: PropertyValue
value: -12.758

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Minor

電車の窓に映る影
type: MusicAlbum
date published: 2025-03-09

オタクのラブストーリー
type: MusicAlbum
date published: 2025-04-06

前世記憶
type: MusicAlbum
date published: 2025-04-10

偶然の出会い
type: MusicAlbum
date published: 2025-05-31

静雨
type: MusicAlbum
date published: 2025-05-31

星影
type: MusicAlbum
date published: 2025-06-14

炎の戦歌
type: MusicAlbum
date published: 2025-07-01

君とまた出会えたなら
type: MusicAlbum
date published: 2025-07-11

時の誓い
type: MusicAlbum
date published: 2025-07-24

忘れられない初恋
type: MusicAlbum
date published: 2025-09-12