Cave
type: MusicGroup
description: thumb|Lechuguilla Cave, New Mexico, United States Caves and caverns are natural voids under the surface of the Earth and have also been observed in other rocky worlds (e.g., on Mars). Caves often for
popularity: 2
followers: 27
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additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513336a4dc6d615fd273382ac37e12def48475334c78ad9fce7d524de0fe43a6. 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/7b3f67ce-1050-4402-a770-5ba78b7702a4.json and https://artists.proofprofile.net/proofs/artist/7b3f67ce-1050-4402-a770-5ba78b7702a4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:19:19Z
album: Speleon
  type: MusicAlbum
  date published: 2023-09-01
  track: Speleon - 2023 Remaster
    type: MusicRecording
    duration: PT5M48S
    duration ms: 348080
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    by artist: Cave
    in album: Speleon
      type: MusicAlbum
      date published: 2023-09-01
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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 0x39a892c5c0c21a0ce5bb62ddc617d09d302cad3460076da500b9ec2871661fb2. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:36:12Z), 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/NLCK42235696.
      date published: 2026-07-20T21:36:12Z
    audio: Speleon - 2023 Remaster
      type: AudioObject
      additional property: Tempo (BPM)
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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: Instrumentalness
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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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      additional property: Key Name
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