初久
type: MusicGroup
genre: cantopop
popularity: 5
followers: 350
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4c5bb30c22f5eea3c902e25ce75596eba7b767ea28d7bcab40d28767356b9bed
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f0b5bb66-6734-4ae7-bce4-c3a2e447d729.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f0b5bb66-6734-4ae7-bce4-c3a2e447d729.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f0b5bb66-6734-4ae7-bce4-c3a2e447d729
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4c5bb30c22f5eea3c902e25ce75596eba7b767ea28d7bcab40d28767356b9bed","name":"初久","registered_at":"2026-06-21T13:11:16Z","symbol":"NIM1928116","token_address":"0xe2cc20bb835d52e4c8933a9127e4cd7a98bc68ff","type":"artist","uuid":"f0b5bb66-6734-4ae7-bce4-c3a2e447d729"}
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 0x4c5bb30c22f5eea3c902e25ce75596eba7b767ea28d7bcab40d28767356b9bed. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f0b5bb66-6734-4ae7-bce4-c3a2e447d729.json and https://artists.proofprofile.net/proofs/artist/f0b5bb66-6734-4ae7-bce4-c3a2e447d729.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x4c5bb30c22f5eea3c902e25ce75596eba7b767ea28d7bcab40d28767356b9bed","name":"初久","registered_at":"2026-06-21T13:11:16Z","symbol":"NIM1928116","token_address":"0xe2cc20bb835d52e4c8933a9127e4cd7a98bc68ff","type":"artist","uuid":"f0b5bb66-6734-4ae7-bce4-c3a2e447d729"}
album: 白衣
  type: MusicAlbum
  date published: 2020-11-27
album: 平行時空
  type: MusicAlbum
  date published: 2021-07-13
album: 致友
  type: MusicAlbum
  date published: 2021-09-12
album: 22°C的派對 Party for Long Time No See
  type: MusicAlbum
  date published: 2022-12-16
album: 半醉 30% Soaked
  type: MusicAlbum
  date published: 2023-02-11
album: 五星筆記 Goodest English
  type: MusicAlbum
  date published: 2023-04-11
  track: 五星筆記 Goodest English
    type: MusicRecording
    duration: PT3M26S
    duration ms: 206106
    explicit: false
    by artist: 初久
    in album: 五星筆記 Goodest English
      type: MusicAlbum
      date published: 2023-04-11
    genre: cantopop
    isrc code: QZHN72362131
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T08:28:47+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7d323f6dfe649aa9973beec6f19f6fea9a557914c6b3d4b8c016195ebe3bac4f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN72362131
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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 0x7d323f6dfe649aa9973beec6f19f6fea9a557914c6b3d4b8c016195ebe3bac4f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZHN72362131.
      date published: 2026-07-04T11:19:20Z
    audio: 五星筆記 Goodest English
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 123.957
      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: 0.68
      additional property: Energy
        type: PropertyValue
        value: 0.878
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.026
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.324
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.72
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.833
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: 初初的浪漫 First Romance
  type: MusicAlbum
  date published: 2023-12-01
album: 慢慢走向你的我 Towards you
  type: MusicAlbum
  date published: 2025-05-19
  track: 慢慢走向你的我 Towards you
    type: MusicRecording
    duration: PT3M29S
    duration ms: 209962
    explicit: false
    by artist: 初久
    in album: 慢慢走向你的我 Towards you
      type: MusicAlbum
      date published: 2025-05-19
    genre: cantopop
    isrc code: QZNWW2591913
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T17:23:02+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8f2586858d04b0d841a43f98ac8c04885f9f04a79b7d64300dc140ad3267f56b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956560
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956560
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2591913
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T23:28:02Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2586858d04b0d841a43f98ac8c04885f9f04a79b7d64300dc140ad3267f56b. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZNWW2591913.
      date published: 2026-07-03T23:28:02Z
    audio: 慢慢走向你的我 Towards you
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 149.973
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Danceability
type: PropertyValue
value: 0.687

Energy
type: PropertyValue
value: 0.843

Speechiness
type: PropertyValue
value: 0.145

Acousticness
type: PropertyValue
value: 0.118

Instrumentalness
type: PropertyValue
value: 0.023

Liveness
type: PropertyValue
value: 0.177

Valence (Positivity)
type: PropertyValue
value: 0.73

Loudness (dB)
type: PropertyValue
value: -7.386

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major