calmberry
type: MusicGroup
popularity: 12
followers: 18
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2e7357db8fbf17bcf1d49b50b7322948fbdc7d06ef9db99e4b39a60927926c9b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953808
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953808
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f5a51229-8c9b-47fb-be6d-892bf938ee32.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f5a51229-8c9b-47fb-be6d-892bf938ee32.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f5a51229-8c9b-47fb-be6d-892bf938ee32
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T16:45:15Z
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7357db8fbf17bcf1d49b50b7322948fbdc7d06ef9db99e4b39a60927926c9b. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f5a51229-8c9b-47fb-be6d-892bf938ee32.json and https://artists.proofprofile.net/proofs/artist/f5a51229-8c9b-47fb-be6d-892bf938ee32.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T16:45:15Z
album: Calmberry - White Noise - Calm and Relaxing - Soft Healing Frequency (216 Hz)
  type: MusicAlbum
  date published: 2021-12-17
album: Calmberry - White Noise - Calm and Relaxing (1800 Hz)
  type: MusicAlbum
  date published: 2021-12-17
album: Calmberry - Nordic Waves - Calm and Relaxing Waves From Kattegat
  type: MusicAlbum
  date published: 2021-12-17
album: Calmberry - Gentle Rain Fall - Calm Rain For Sleep and Relaxation
  type: MusicAlbum
  date published: 2021-12-17