Marcus Fung
type: MusicGroup
popularity: 9
followers: 347
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2fdcb66048201c5e270c265aeb37bdd220a994422805a06d2d4916f9e959cbac
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fd1897c1-fd8d-4d0c-b876-1dfaeaad2f5c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fd1897c1-fd8d-4d0c-b876-1dfaeaad2f5c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fd1897c1-fd8d-4d0c-b876-1dfaeaad2f5c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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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 0x2fdcb66048201c5e270c265aeb37bdd220a994422805a06d2d4916f9e959cbac. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd1897c1-fd8d-4d0c-b876-1dfaeaad2f5c.json and https://artists.proofprofile.net/proofs/artist/fd1897c1-fd8d-4d0c-b876-1dfaeaad2f5c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0x2fdcb66048201c5e270c265aeb37bdd220a994422805a06d2d4916f9e959cbac","name":"Marcus Fung","registered_at":"2026-06-21T17:31:52Z","symbol":"NIM1988260","token_address":"0xf5754d4ef49f80a7cd8c288597f0f00607b6eb46","type":"artist","uuid":"fd1897c1-fd8d-4d0c-b876-1dfaeaad2f5c"}
album: Come Along & Sing a Song
  type: MusicAlbum
  date published: 2020-07-15
album: Sublime Elevation
  type: MusicAlbum
  date published: 2021-01-25
album: Music for Mindful Practice in 432hz (vol. 1)
  type: MusicAlbum
  date published: 2021-06-21
album: Medicine for the Nervous System vol.1
  type: MusicAlbum
  date published: 2022-03-03
album: dj noodle soup @ wise warrior gym
  type: MusicAlbum
  date published: 2022-06-07
album: Tapestries for Yoga & Breathwork vol.1
  type: MusicAlbum
  date published: 2022-06-14
album: Ecstatic Piano Weavings, Vol. 1 (live improvisation)
  type: MusicAlbum
  date published: 2022-06-14
album: Before the Summer's Over
  type: MusicAlbum
  date published: 2022-08-24
album: Dreaming of an Ancient Future
  type: MusicAlbum
  date published: 2023-01-03
album: medicine for the nervous system vol.2
  type: MusicAlbum
  date published: 2023-03-17
  track: Safety and Loving Comfort
    type: MusicRecording
    duration: PT8M1S
    duration ms: 481462
    explicit: false
    by artist: Marcus Fung
    in album: medicine for the nervous system vol.2
      type: MusicAlbum
      date published: 2023-03-17
    isrc code: QZHN32326587
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T20:46:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9fa1d5310309023fb9c2399f752072d1a7bc875dc43a06fe118cef714ba2c81b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958931
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958931
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN32326587
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T21:15:01Z
    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 0x9fa1d5310309023fb9c2399f752072d1a7bc875dc43a06fe118cef714ba2c81b. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZHN32326587.
      date published: 2026-07-20T21:15:01Z
    audio: Safety and Loving Comfort
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 67.572
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.06
      additional property: Energy
        type: PropertyValue
        value: 0.003
      additional property: Speechiness
        type: PropertyValue
        value: 0.053
      additional property: Acousticness
        type: PropertyValue
        value: 0.982
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.194
      additional property: Liveness
        type: PropertyValue
        value: 0.1
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.062
      additional property: Loudness (dB)
        type: PropertyValue
        value: -24.978
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: The Field Around the Heart
    type: MusicRecording
    duration: PT2M52S
    duration ms: 172120
    explicit: false
    by artist: Marcus Fung
    in album: medicine for the nervous system vol.2
      type: MusicAlbum
      date published: 2023-03-17
    isrc code: QZHN32326594
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T11:30:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x95e7942c983116614b75ad65f4ae098650d0b0ddacbd4aa14c331282d99d224c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN32326594
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0x95e7942c983116614b75ad65f4ae098650d0b0ddacbd4aa14c331282d99d224c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZHN32326594.
      date published: 2026-07-03T19:59:51Z
    audio: The Field Around the Heart
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 66.789
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
      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
album: Scribbled on Napkins (Beat Tape 003)

Time Signature
type: PropertyValue
value: 3

Danceability
type: PropertyValue
value: 0.108

Energy
type: PropertyValue
value: 0.157

Speechiness
type: PropertyValue
value: 0.059

Acousticness
type: PropertyValue
value: 0.897

Instrumentalness
type: PropertyValue
value: 0.559

Liveness
type: PropertyValue
value: 0.112

Valence (Positivity)
type: PropertyValue
value: 0.031

Loudness (dB)
type: PropertyValue
value: -24.424

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Major

Scribbled on Napkins (Beat Tape 003)
type: MusicAlbum
date published: 2023-04-26