Lake
type: MusicGroup
description: thumb|upright=1.1|Lake Idro, an Italian prealpine lake of glacial origin situated largely within the province of Brescia (Lombardy) and in part in Trentino. thumb|upright=1.1|Sunset over Lake Michigan
popularity: 8
followers: 523
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additional property: CopyrightChainExplorerURL
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  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
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  date published: 2026-06-16T02:57:35Z
album: Impatient
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  type: MusicAlbum
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album: Décennie
  type: MusicAlbum
  date published: 2024-07-26
album: J'aime
  type: MusicAlbum
  date published: 2024-08-30
album: Somatique
  type: MusicAlbum
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album: Champagne & Caviar
  type: MusicAlbum
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album: Dehors, le ciel semble...
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  date published: 2025-05-16
  track: ...Saigner.
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    additional property: OTSVerifyInstructions
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      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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4951893145e534360e997b6bef0ab84d392ffc8c3088ddc0e24c30d874217632. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/CH6542525528.
      date published: 2026-07-13T00:04:23Z
    audio: ...Saigner.
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  track: ...Triste.
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    by artist: Lake
    in album: Dehors, le ciel semble...
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      date published: 2025-05-16
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    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: ...Triste.

CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0xa984411f56c62737c8d17a5878ad96c56521c5c21f16c1179e5ee1c91a6237a5

OTSHash
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OTSBitcoinBlock
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value: 958544

OTSBitcoinBlockVerifyURL
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value: https://blockstream.info/api/block-height/958544

OTSVerificationAPI
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value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6542525529

OTSTimestamp
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value: 2026-07-18T12:14:37Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa984411f56c62737c8d17a5878ad96c56521c5c21f16c1179e5ee1c91a6237a5. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/CH6542525529.
date published: 2026-07-18T12:14:37Z

...Triste.
type: AudioObject
additional property: Tempo (BPM)
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  value: 90.05
additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Key Name
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additional property: Mode Name
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Dehors, le ciel semble...
type: MusicAlbum
date published: 2025-06-06