RESERVOIR
type: MusicGroup
description: thumb|Kardzali Reservoir in Bulgaria is a reservoir in the Rhodope Mountains. |alt= thumb|Some reservoirs such as this in Argos, Peloponnese are made for recreational purposes, rather than storing fre
popularity: 6
followers: 442
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/954058
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/4543c5a0-9936-4db9-9879-01739700ac13.ots
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539631e1593f501fc91a0008b07943603dca71203931dafede5a578ad0f662e7. Chain 2 (Bitcoin): anchored in block 954058 (2026-06-17T06:34:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4543c5a0-9936-4db9-9879-01739700ac13.json and https://artists.proofprofile.net/proofs/artist/4543c5a0-9936-4db9-9879-01739700ac13.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T06:34:31Z
album: SUEDE / PANDORA
  type: MusicAlbum
  date published: 2019-06-12
album: BABY / RADIO
  type: MusicAlbum
  date published: 2019-06-26
album: Bitter & Sweet
  type: MusicAlbum
  date published: 2020-06-15
album: DIVE
  type: MusicAlbum
  date published: 2021-11-24
album: water's edge
  type: MusicAlbum
  date published: 2021-12-17
album: water’s edge
  type: MusicAlbum
  date published: 2021-12-17
album: MELON
  type: MusicAlbum
  date published: 2023-04-22
album: GRAPE
  type: MusicAlbum
  date published: 2023-09-13
  track: バスに乗って
    type: MusicRecording
    duration: PT3M43S
    duration ms: 223760
    explicit: false
    by artist: RESERVOIR
    in album: GRAPE
      type: MusicAlbum
      date published: 2023-09-13
    isrc code: JP92A2313581
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    additional property: OTSVerificationAPI
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      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92A2313581
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T23:17:00Z
    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 0xb8fd7ac062ee7b26144bec5a11df04151710a573e64f8e27df171ea426d9f9f5. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/JP92A2313581.
      date published: 2026-07-12T23:17:00Z
    audio: バスに乗って
      type: AudioObject
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      additional property: Liveness
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      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
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