CPH
type: MusicGroup
description: CPH, CpH, Cph, or cph may refer to: California State Polytechnic University, Humboldt, public university in Arcata, California Castle Peak Hospital, the oldest and largest psychiatric hospital in Tu
popularity: 6
followers: 9
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xed8aed2b7554af68ca1beddaa4164542eeafb495b56e5e2099d8968496403682
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954031
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954031
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3a90b305-2972-43eb-bd21-9520f6ebfea2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3a90b305-2972-43eb-bd21-9520f6ebfea2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3a90b305-2972-43eb-bd21-9520f6ebfea2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T01:43:23Z
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 0xed8aed2b7554af68ca1beddaa4164542eeafb495b56e5e2099d8968496403682. Chain 2 (Bitcoin): anchored in block 954031 (2026-06-17T01:43:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a90b305-2972-43eb-bd21-9520f6ebfea2.json and https://artists.proofprofile.net/proofs/artist/3a90b305-2972-43eb-bd21-9520f6ebfea2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T01:43:23Z
album: La suite
  type: MusicAlbum
  date published: 2023-07-11
album: Dans ma tête
  type: MusicAlbum
  date published: 2024-05-29
album: Rendez-vous
  type: MusicAlbum
  date published: 2024-05-31
album: Contrat
  type: MusicAlbum
  date published: 2025-02-13
album: Pas l'time
  type: MusicAlbum
  date published: 2025-06-06