Marco Sanzz
type: MusicGroup
popularity: 16
followers: 19
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0b11e2259d082e810a04777b89a3d34d91faa368b7b7646f06993f0ad65f42c0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953754
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953754
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ae68f458-cec5-46ff-8fb8-2e87f73a75ff.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ae68f458-cec5-46ff-8fb8-2e87f73a75ff.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ae68f458-cec5-46ff-8fb8-2e87f73a75ff
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T06:45:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0b11e2259d082e810a04777b89a3d34d91faa368b7b7646f06993f0ad65f42c0","name":"Marco Sanzz","registered_at":"2026-06-14T22:51:36Z","symbol":"NIM0601648","token_address":"0xa137957a86a304e0deebb48fb89eaf1f801e7bfb","type":"artist","uuid":"ae68f458-cec5-46ff-8fb8-2e87f73a75ff"}
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 0x0b11e2259d082e810a04777b89a3d34d91faa368b7b7646f06993f0ad65f42c0. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ae68f458-cec5-46ff-8fb8-2e87f73a75ff.json and https://artists.proofprofile.net/proofs/artist/ae68f458-cec5-46ff-8fb8-2e87f73a75ff.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T06:45:19Z
  text: {"copyright_id":"0x0b11e2259d082e810a04777b89a3d34d91faa368b7b7646f06993f0ad65f42c0","name":"Marco Sanzz","registered_at":"2026-06-14T22:51:36Z","symbol":"NIM0601648","token_address":"0xa137957a86a304e0deebb48fb89eaf1f801e7bfb","type":"artist","uuid":"ae68f458-cec5-46ff-8fb8-2e87f73a75ff"}
album: Midnight Love Forever
  type: MusicAlbum
  date published: 2024-05-18
  track: Alive
    type: MusicRecording
    duration: PT2M8S
    duration ms: 128000
    explicit: false
    by artist: Marco Sanzz
    in album: Midnight Love Forever
      type: MusicAlbum
      date published: 2024-05-18
    isrc code: QZKWA2314070
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T14:24:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa8d7bb9985ce4e7aff94c17c86b44be99ae0d3e4c6c2d836b3f08b06b6c0ab79
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958300
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958300
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKWA2314070
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T16:14:30Z
    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 0xa8d7bb9985ce4e7aff94c17c86b44be99ae0d3e4c6c2d836b3f08b06b6c0ab79. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZKWA2314070 — a six-check JSON result.
      date published: 2026-07-16T16:14:30Z
    audio: Alive
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 109.944
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.781
      additional property: Energy
        type: PropertyValue
        value: 0.349
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.02
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.005
      additional property: Liveness
        type: PropertyValue
        value: 0.385
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.435
      additional property: Loudness (dB)
        type: PropertyValue
        value: -17.058
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: The Midnight Train
    type: MusicRecording
    duration: PT2M3S
    duration ms: 123000
    explicit: false
    by artist: Marco Sanzz
    in album: Midnight Love Forever
      type: MusicAlbum
      date published: 2024-05-18
    isrc code: QZKWA2314071
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T12:04:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x88a145d1a0bdc7ee0cde8efcb59fa07662d652a42e7ed30b1313c59870c53c24
    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/QZKWA2314071
    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 0x88a145d1a0bdc7ee0cde8efcb59fa07662d652a42e7ed30b1313c59870c53c24. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKWA2314071 — a six-check JSON result.
      date published: 2026-07-03T19:59:51Z
    audio: The Midnight Train
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.996
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.836
      additional property: Energy
        type: PropertyValue
        value: 0.395
      additional property: Speechiness
        type: PropertyValue
        value: 0.053
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.085
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.278
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.847
      additional property: Key Name
      additional property: Mode Name
  track: Walking Down the Street
  track: Only You
  track: Reactions
  track: Smile
  track: Serenade

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Minor

Walking Down the Street
type: MusicRecording
duration: PT2M12S
duration ms: 132000
explicit: false
by artist: Marco Sanzz
in album: Midnight Love Forever
  type: MusicAlbum
  date published: 2024-05-18
isrc code: QZKWA2314072
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-21T19:59:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf87af71e2f8f9f37492cd0f6010f3d97def469c5ffe7364c857ce92825a860dc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959054
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959054
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKWA2314072
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-21T20:19:31Z
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 0xf87af71e2f8f9f37492cd0f6010f3d97def469c5ffe7364c857ce92825a860dc. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/QZKWA2314072 — a six-check JSON result.
  date published: 2026-07-21T20:19:31Z
audio: Walking Down the Street
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.019
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.766
  additional property: Energy
    type: PropertyValue
    value: 0.329
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.081
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.107
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.285
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.268
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Only You
type: MusicRecording
duration: PT2M4S
duration ms: 124000
explicit: false
by artist: Marco Sanzz
in album: Midnight Love Forever
  type: MusicAlbum
  date published: 2024-05-18
isrc code: QZKWA2314073
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-18T19:59:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5836b18de0f4272c84cc502678caabf11b1fe71bab88dac4b60982f24941a18e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958607
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958607
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKWA2314073
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T21:01:11Z
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 0x5836b18de0f4272c84cc502678caabf11b1fe71bab88dac4b60982f24941a18e. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZKWA2314073 — a six-check JSON result.
  date published: 2026-07-18T21:01:11Z
audio: Only You
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.025
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.771
  additional property: Energy
    type: PropertyValue
    value: 0.389
  additional property: Speechiness
    type: PropertyValue
    value: 0.067
  additional property: Acousticness
    type: PropertyValue
    value: 0.01
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.018
  additional property: Liveness
    type: PropertyValue
    value: 0.078
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.116
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.441
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Reactions
type: MusicRecording
duration: PT2M7S
duration ms: 127500
explicit: false
by artist: Marco Sanzz
in album: Midnight Love Forever
  type: MusicAlbum
  date published: 2024-05-18
isrc code: QZKWA2314074
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T12:30:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0b43b00c0b8229b3c7f2fa6293e7f99637ddc8d6fc653778a1626419b3cc883f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958733
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958733
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKWA2314074
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T12:51:21Z
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 0x0b43b00c0b8229b3c7f2fa6293e7f99637ddc8d6fc653778a1626419b3cc883f. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/QZKWA2314074 — a six-check JSON result.
  date published: 2026-07-19T12:51:21Z
audio: Reactions
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 192.036
  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: 0.579
  additional property: Energy
    type: PropertyValue
    value: 0.199
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.285
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.856
  additional property: Liveness
    type: PropertyValue
    value: 0.138
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.17
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.88
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Smile
type: MusicRecording
duration: PT2M4S
duration ms: 124000
explicit: false
by artist: Marco Sanzz
in album: Midnight Love Forever
  type: MusicAlbum
  date published: 2024-05-18
isrc code: QZKWA2314075
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-12T22:14:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x403d387ced36b7f73c9745cfa2ed9349652148ab09f8f93244599b87a460836a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957766
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957766
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKWA2314075
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-12T22:25:04Z
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 0x403d387ced36b7f73c9745cfa2ed9349652148ab09f8f93244599b87a460836a. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKWA2314075 — a six-check JSON result.
  date published: 2026-07-12T22:25:04Z
audio: Smile
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.995
  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: 0.776
  additional property: Energy
    type: PropertyValue
    value: 0.443
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.003
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.892
  additional property: Liveness
    type: PropertyValue
    value: 0.337
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.558
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.11
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Serenade
type: MusicRecording
duration: PT2M2S
duration ms: 122500
explicit: false
by artist: Marco Sanzz
in album: Midnight Love Forever
  type: MusicAlbum
  date published: 2024-05-18
isrc code: QZKWA2314076
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-15T11:44:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x466bf22149e47780a12d6cef9e2d875b113e257adf7dc0754a5ecd3e61c8c2d6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958153
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958153
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKWA2314076
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-15T12:03:04Z
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 0x466bf22149e47780a12d6cef9e2d875b113e257adf7dc0754a5ecd3e61c8c2d6. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKWA2314076 — a six-check JSON result.
  date published: 2026-07-15T12:03:04Z
audio: Serenade
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.999
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.759
  additional property: Energy
    type: PropertyValue
    value: 0.454
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.003
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.567
  additional property: Liveness
    type: PropertyValue
    value: 0.385
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.057
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.005
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor