Piano:el
type: MusicGroup
popularity: 2
followers: 33
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6684fb78a6a4a5aad58fb2470f20151fb88e1393b5b5bbc5cd9cc792b5c0acb4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/deec4e0a-afdc-42d0-b82f-bbf92471b66a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/deec4e0a-afdc-42d0-b82f-bbf92471b66a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/deec4e0a-afdc-42d0-b82f-bbf92471b66a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
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 0x6684fb78a6a4a5aad58fb2470f20151fb88e1393b5b5bbc5cd9cc792b5c0acb4. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/deec4e0a-afdc-42d0-b82f-bbf92471b66a.json and https://artists.proofprofile.net/proofs/artist/deec4e0a-afdc-42d0-b82f-bbf92471b66a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
album: Sep: Time Cafe
  type: MusicAlbum
  date published: 2018-09-02
album: Nov: In My Room
  type: MusicAlbum
  date published: 2018-11-01
album: Dec: Rest
  type: MusicAlbum
  date published: 2018-12-01
album: Jan: Dream
  type: MusicAlbum
  date published: 2019-01-01
album: Feb: February Night
  type: MusicAlbum
  date published: 2019-02-01
album: Mar: Melting Point
  type: MusicAlbum
  date published: 2019-03-01
album: Apr: Picnic
  type: MusicAlbum
  date published: 2019-04-01
album: May: Mood in Love
  type: MusicAlbum
  date published: 2019-05-01
album: Jun: Passion Lounge
  type: MusicAlbum
  date published: 2019-06-01
album: Jul: Deep Ocean
  type: MusicAlbum
  date published: 2019-07-01
album: Aug: Calm Brunch
  type: MusicAlbum
  date published: 2019-08-01
album: Sep: Concentration
  type: MusicAlbum
  date published: 2019-09-08
album: Oct: Starry Night
  type: MusicAlbum
  date published: 2019-10-06
album: Nov: Depression
  type: MusicAlbum
  date published: 2019-11-01
album: Dec: Breathe
  type: MusicAlbum
  date published: 2019-12-13
album: Apr: Strange spring
  type: MusicAlbum
  date published: 2020-04-11
album: May: Self Isolation
  type: MusicAlbum
  date published: 2020-05-29