ななみ
type: MusicGroup
popularity: 4
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x508f9b2ef7fef9dbaf213e1404f2a0911e803bd99bfc17efb15d3f3b524ddc1c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954055
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954055
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/43162165-2711-494a-89c2-56afe99a67b6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/43162165-2711-494a-89c2-56afe99a67b6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/43162165-2711-494a-89c2-56afe99a67b6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T05:51:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x508f9b2ef7fef9dbaf213e1404f2a0911e803bd99bfc17efb15d3f3b524ddc1c","name":"ななみ","registered_at":"2026-06-16T13:02:24Z","symbol":"NIM1060158","token_address":"0x09e0d73899b75a2fed830a786d5a26eb65673e7d","type":"artist","uuid":"43162165-2711-494a-89c2-56afe99a67b6"}
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 0x508f9b2ef7fef9dbaf213e1404f2a0911e803bd99bfc17efb15d3f3b524ddc1c. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43162165-2711-494a-89c2-56afe99a67b6.json and https://artists.proofprofile.net/proofs/artist/43162165-2711-494a-89c2-56afe99a67b6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x508f9b2ef7fef9dbaf213e1404f2a0911e803bd99bfc17efb15d3f3b524ddc1c","name":"ななみ","registered_at":"2026-06-16T13:02:24Z","symbol":"NIM1060158","token_address":"0x09e0d73899b75a2fed830a786d5a26eb65673e7d","type":"artist","uuid":"43162165-2711-494a-89c2-56afe99a67b6"}
album: ゼツボウに降る星
  type: MusicAlbum
  date published: 2025-02-25
  track: ゼツボウに降る星
    type: MusicRecording
    duration: PT5M56S
    duration ms: 356400
    explicit: false
    by artist: ななみ
    in album: ゼツボウに降る星
      type: MusicAlbum
      date published: 2025-02-25
    isrc code: JP92N2508791
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T14:06:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb5995a3075009ef00441215a5623c0fc0544a9be0921804eb87522ad244ed8d2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958905
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958905
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92N2508791
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T16:14:34Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5995a3075009ef00441215a5623c0fc0544a9be0921804eb87522ad244ed8d2. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/JP92N2508791.
      date published: 2026-07-20T16:14:34Z
    audio: ゼツボウに降る星
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 74.961
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.64
      additional property: Energy
        type: PropertyValue
        value: 0.16
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.93
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.087
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.282
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.264
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: オレンジの月
  type: MusicAlbum
  date published: 2025-02-28
  track: オレンジの月
    type: MusicRecording
    duration: PT4M5S
    duration ms: 245136
    explicit: false
    by artist: ななみ
    in album: オレンジの月
      type: MusicAlbum
      date published: 2025-02-28
    isrc code: JP92N2509030
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T10:29:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf51a43ff395e2ff160297799d6620dfbc15509d9ee16aa113569f0d0bc5fa4d2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958867
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958867
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92N2509030
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T13:30:40Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51a43ff395e2ff160297799d6620dfbc15509d9ee16aa113569f0d0bc5fa4d2. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:30:40Z), 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/JP92N2509030.
      date published: 2026-07-20T13:30:40Z
    audio: オレンジの月
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 145.97
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.618
      additional property: Energy
        type: PropertyValue
        value: 0.183
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.901
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.113
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.328
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: 青いまま

Loudness (dB)
type: PropertyValue
value: -11.191

Key Name
type: PropertyValue
value: Bb

Mode Name
type: PropertyValue
value: Major

青いまま
type: MusicAlbum
date published: 2025-10-17