Ev4n洪瑋澤
type: MusicGroup
popularity: 2
followers: 9
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc1752d8c0b48827de7238e13bd2fd462d94ff2b2906dcab2f037b40e6f98c6f1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954134
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954134
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7e67fdd4-3232-4783-ab51-3a3c5a7ef09e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7e67fdd4-3232-4783-ab51-3a3c5a7ef09e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7e67fdd4-3232-4783-ab51-3a3c5a7ef09e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:41:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc1752d8c0b48827de7238e13bd2fd462d94ff2b2906dcab2f037b40e6f98c6f1","name":"Ev4n洪瑋澤","registered_at":"2026-06-17T10:03:58Z","symbol":"NIM1361134","token_address":"0xed2e7074fd2df04f973e2a32731a1c9dd7c4696f","type":"artist","uuid":"7e67fdd4-3232-4783-ab51-3a3c5a7ef09e"}
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 0xc1752d8c0b48827de7238e13bd2fd462d94ff2b2906dcab2f037b40e6f98c6f1. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e67fdd4-3232-4783-ab51-3a3c5a7ef09e.json and https://artists.proofprofile.net/proofs/artist/7e67fdd4-3232-4783-ab51-3a3c5a7ef09e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:41:05Z
  text: {"copyright_id":"0xc1752d8c0b48827de7238e13bd2fd462d94ff2b2906dcab2f037b40e6f98c6f1","name":"Ev4n洪瑋澤","registered_at":"2026-06-17T10:03:58Z","symbol":"NIM1361134","token_address":"0xed2e7074fd2df04f973e2a32731a1c9dd7c4696f","type":"artist","uuid":"7e67fdd4-3232-4783-ab51-3a3c5a7ef09e"}
album: 我想去到一個不會受傷的地方
  type: MusicAlbum
  date published: 2025-10-22
  track: 我想去到一個不會受傷的地方
    type: MusicRecording
    duration: PT4M28S
    duration ms: 268268
    explicit: false
    by artist: Ev4n洪瑋澤
    in album: 我想去到一個不會受傷的地方
      type: MusicAlbum
      date published: 2025-10-22
    isrc code: CBF8B2504081
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T17:51:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5e38580fe95774636d2859a3335c0122245e2c7a3ef571f32b271af6248d320d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958918
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958918
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CBF8B2504081
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T17:58:04Z
    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 0x5e38580fe95774636d2859a3335c0122245e2c7a3ef571f32b271af6248d320d. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/CBF8B2504081.
      date published: 2026-07-20T17:58:04Z
    audio: 我想去到一個不會受傷的地方
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 178.006
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.438
      additional property: Energy
        type: PropertyValue
        value: 0.303
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.773
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.108
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.276
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.854
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major