Joe Chang
type: MusicGroup
popularity: 3
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0a3d2a7bedd5a01c41b372f637437b5523be9baad384da19a6f900c00286fe85
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/66ece7bc-5889-424c-9ed2-70ec5870999d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/66ece7bc-5889-424c-9ed2-70ec5870999d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/66ece7bc-5889-424c-9ed2-70ec5870999d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0a3d2a7bedd5a01c41b372f637437b5523be9baad384da19a6f900c00286fe85","name":"Joe Chang","registered_at":"2026-06-17T01:51:11Z","symbol":"NIM1243582","token_address":"0x9460aa4e69a0f023d6cca075cd6f0fdf149d1e6c","type":"artist","uuid":"66ece7bc-5889-424c-9ed2-70ec5870999d"}
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 0x0a3d2a7bedd5a01c41b372f637437b5523be9baad384da19a6f900c00286fe85. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/66ece7bc-5889-424c-9ed2-70ec5870999d.json and https://artists.proofprofile.net/proofs/artist/66ece7bc-5889-424c-9ed2-70ec5870999d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x0a3d2a7bedd5a01c41b372f637437b5523be9baad384da19a6f900c00286fe85","name":"Joe Chang","registered_at":"2026-06-17T01:51:11Z","symbol":"NIM1243582","token_address":"0x9460aa4e69a0f023d6cca075cd6f0fdf149d1e6c","type":"artist","uuid":"66ece7bc-5889-424c-9ed2-70ec5870999d"}
album: 颗颗过新年
  type: MusicAlbum
  date published: 2020-01-06
album: Dream
  type: MusicAlbum
  date published: 2020-10-01
album: 牛Year狂想曲
  type: MusicAlbum
  date published: 2021-01-13
album: 宇宙小小情敌
  type: MusicAlbum
  date published: 2023-03-14
album: 迟到的人别听快的旋律
  type: MusicAlbum
  date published: 2023-12-18
album: 龙重登场
  type: MusicAlbum
  date published: 2024-02-03
album: 长大的日子不理想
  type: MusicAlbum
  date published: 2024-03-11
  track: 长大的日子不理想
    type: MusicRecording
    duration: PT4M17S
    duration ms: 257739
    explicit: false
    by artist: Joe Chang
    in album: 长大的日子不理想
      type: MusicAlbum
      date published: 2024-03-11
    isrc code: MYRK12417111
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T22:18:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb9c3e411abd7b8433553676161ee3b9d5a419c9ef8bd9f391ca25ccfeddae4be
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYRK12417111
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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 0xb9c3e411abd7b8433553676161ee3b9d5a419c9ef8bd9f391ca25ccfeddae4be. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MYRK12417111 — a six-check JSON result.
      date published: 2026-07-06T01:25:57Z
    audio: 长大的日子不理想
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 114.979
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.593
      additional property: Energy
        type: PropertyValue
        value: 0.613
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.653
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.123
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.241
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.511
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Swing into Your Heart
  type: MusicAlbum
  date published: 2024-09-30