姜皓文
type: MusicGroup
genre: cantopop
popularity: 5
followers: 20
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf1daa1d32770817853d0fe5ee938be70ab40d3283f42a32d1358887c014a9a9f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954618
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954618
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ca1b6d73-c578-4136-821a-718ffa1af74c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ca1b6d73-c578-4136-821a-718ffa1af74c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ca1b6d73-c578-4136-821a-718ffa1af74c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:05:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf1daa1d32770817853d0fe5ee938be70ab40d3283f42a32d1358887c014a9a9f","name":"姜皓文","registered_at":"2026-06-20T22:30:26Z","symbol":"NIM1734729","token_address":"0x6fef59e643ff87427541f1715db89ea19d67bea8","type":"artist","uuid":"ca1b6d73-c578-4136-821a-718ffa1af74c"}
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 0xf1daa1d32770817853d0fe5ee938be70ab40d3283f42a32d1358887c014a9a9f. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca1b6d73-c578-4136-821a-718ffa1af74c.json and https://artists.proofprofile.net/proofs/artist/ca1b6d73-c578-4136-821a-718ffa1af74c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:05:13Z
  text: {"copyright_id":"0xf1daa1d32770817853d0fe5ee938be70ab40d3283f42a32d1358887c014a9a9f","name":"姜皓文","registered_at":"2026-06-20T22:30:26Z","symbol":"NIM1734729","token_address":"0x6fef59e643ff87427541f1715db89ea19d67bea8","type":"artist","uuid":"ca1b6d73-c578-4136-821a-718ffa1af74c"}
album: 哈哈哈新年喜戲
  type: MusicAlbum
  date published: 2025-01-17
  track: 哈哈哈新年喜戲
    type: MusicRecording
    duration: PT3M21S
    duration ms: 201857
    explicit: false
    by artist: 姜皓文
    in album: 哈哈哈新年喜戲
      type: MusicAlbum
      date published: 2025-01-17
    genre: cantopop
    isrc code: TWCG52599987
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T23:29:04+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x54ac12e497e928951733ce41785b9cb48ccb1ba7c162e5c0fff8df3bb14c315a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956728
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956728
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWCG52599987
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:43:49Z
    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 0x54ac12e497e928951733ce41785b9cb48ccb1ba7c162e5c0fff8df3bb14c315a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TWCG52599987.
      date published: 2026-07-05T01:43:49Z
    audio: 哈哈哈新年喜戲
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 139.979
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.659
      additional property: Energy
        type: PropertyValue
        value: 0.83
      additional property: Speechiness
        type: PropertyValue
        value: 0.088
      additional property: Acousticness
        type: PropertyValue
        value: 0.06
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.366
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.842
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.782
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 那裡才是我的家 (國語)
  type: MusicAlbum
  date published: 2025-02-26
album: 那裡才是我的家
  type: MusicAlbum
  date published: 2025-02-26
  track: 那裡才是我的家
    type: MusicRecording
    duration: PT3M43S
    duration ms: 223714
    explicit: false
    by artist: 姜皓文
    in album: 那裡才是我的家
      type: MusicAlbum
      date published: 2025-02-26
    genre: cantopop
    isrc code: HKE952500564
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T13:10:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6d7b12e357af9edf952afd2b1a7411c4d6ab3b45cc034995d30c514719872140
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958749
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958749
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKE952500564
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T16:10:55Z
    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 0x6d7b12e357af9edf952afd2b1a7411c4d6ab3b45cc034995d30c514719872140. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:10:55Z), 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/HKE952500564.
      date published: 2026-07-19T16:10:55Z
    audio: 那裡才是我的家
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.016
      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
        type: PropertyValue
        value: 0.453
      additional property: Energy
        type: PropertyValue
        value: 0.33
      additional property: Speechiness
        type: PropertyValue
        value: 0.027
      additional property: Acousticness
        type: PropertyValue
        value: 0.45
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.002
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Liveness
type: PropertyValue
value: 0.16

Valence (Positivity)
type: PropertyValue
value: 0.216

Loudness (dB)
type: PropertyValue
value: -10.237

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major