Sandy Lam at
type: MusicGroup
popularity: 5
followers: 6
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x987a29b55871f6aa19d301572bec3819f1c4b29536a90aa2a7a5802f80ca4243
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954115
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954115
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b6eafec-a494-4b33-a101-009dcc92b82c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b6eafec-a494-4b33-a101-009dcc92b82c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7b6eafec-a494-4b33-a101-009dcc92b82c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T15:44:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x987a29b55871f6aa19d301572bec3819f1c4b29536a90aa2a7a5802f80ca4243","name":"Sandy Lam at","registered_at":"2026-06-17T08:37:54Z","symbol":"NIM1340599","token_address":"0x45abfd5f36e4e91ca369bb8b2bef3b57bf835e4c","type":"artist","uuid":"7b6eafec-a494-4b33-a101-009dcc92b82c"}
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 0x987a29b55871f6aa19d301572bec3819f1c4b29536a90aa2a7a5802f80ca4243. Chain 2 (Bitcoin): anchored in block 954131 (2026-06-17T19:19:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b6eafec-a494-4b33-a101-009dcc92b82c.json and https://artists.proofprofile.net/proofs/artist/7b6eafec-a494-4b33-a101-009dcc92b82c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:19:19Z
  text: {"copyright_id":"0x987a29b55871f6aa19d301572bec3819f1c4b29536a90aa2a7a5802f80ca4243","name":"Sandy Lam at","registered_at":"2026-06-17T08:37:54Z","symbol":"NIM1340599","token_address":"0x45abfd5f36e4e91ca369bb8b2bef3b57bf835e4c","type":"artist","uuid":"7b6eafec-a494-4b33-a101-009dcc92b82c"}
track: 講多錯多
  type: MusicRecording
  duration: PT5M16S
  duration ms: 316080
  explicit: false
  by artist: Sandy Lam
  by artist: 倫永亮
  by artist: David Ling Jr
  by artist: Sandy Lam at
  in album: Millennium 3CD Box Set Vol. 2
    type: MusicAlbum
    date published: 2000-03-21
  popularity: 2
  genre: mandopop
  genre: cantopop
  genre: c-pop
  genre: taiwanese-pop
  isrc code: HKI498824109
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-25T00:31:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0a0d6e56503b7107f8e9e39014da8e6e33373191532b9e2445369966c195937e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI498824109
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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 0x0a0d6e56503b7107f8e9e39014da8e6e33373191532b9e2445369966c195937e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HKI498824109.
    date published: 2026-07-08T03:20:19Z
  audio: 講多錯多
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 135.751
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.672
    additional property: Energy
      type: PropertyValue
      value: 0.879
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.041
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.003
    additional property: Liveness
      type: PropertyValue
      value: 0.058
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.939
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.496
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: 講多錯多
  type: MusicRecording
  duration: PT5M16S
  duration ms: 316080
  explicit: false
  by artist: Sandy Lam
  by artist: 倫永亮
  by artist: David Ling Jr
  by artist: Sandy Lam at
  in album: 都市觸覺第一輯
    type: MusicAlbum
    date published: 2014-12-30
  genre: mandopop
  genre: cantopop
  genre: c-pop
  genre: taiwanese-pop
  isrc code: HKI498824109
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-25T00:31:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0a0d6e56503b7107f8e9e39014da8e6e33373191532b9e2445369966c195937e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956312
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI498824109
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T05:09:12Z
  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 0x0a0d6e56503b7107f8e9e39014da8e6e33373191532b9e2445369966c195937e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HKI498824109.
    date published: 2026-07-02T05:09:12Z
  audio: 講多錯多
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 135.751
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.672
    additional property: Energy
      type: PropertyValue
      value: 0.879
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    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

Acousticness
type: PropertyValue
value: 0.041

Instrumentalness
type: PropertyValue
value: 0.003

Liveness
type: PropertyValue
value: 0.058

Valence (Positivity)
type: PropertyValue
value: 0.939

Loudness (dB)
type: PropertyValue
value: -10.496

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Minor