ARC Ensemble
type: MusicGroup
genre: chamber music
popularity: 2
followers: 210
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x317cc82d45230585678d3fea135274ce175904619bad5b8baff32128fb944700
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9431b755-6f5a-402a-8763-5a53b3712073.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9431b755-6f5a-402a-8763-5a53b3712073.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9431b755-6f5a-402a-8763-5a53b3712073
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x317cc82d45230585678d3fea135274ce175904619bad5b8baff32128fb944700","name":"ARC Ensemble","registered_at":"2026-06-17T17:24:44Z","symbol":"NIM1466218","token_address":"0x6e5b9783353908bb909fce37a920034dc1f4f0c0","type":"artist","uuid":"9431b755-6f5a-402a-8763-5a53b3712073"}
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 0x317cc82d45230585678d3fea135274ce175904619bad5b8baff32128fb944700. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9431b755-6f5a-402a-8763-5a53b3712073.json and https://artists.proofprofile.net/proofs/artist/9431b755-6f5a-402a-8763-5a53b3712073.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x317cc82d45230585678d3fea135274ce175904619bad5b8baff32128fb944700","name":"ARC Ensemble","registered_at":"2026-06-17T17:24:44Z","symbol":"NIM1466218","token_address":"0x6e5b9783353908bb909fce37a920034dc1f4f0c0","type":"artist","uuid":"9431b755-6f5a-402a-8763-5a53b3712073"}
album: Ben-Haim: Chamber Works
  type: MusicAlbum
  date published: 2013-06-01
album: Robert Müller-Hartmann: Chamber Works
  type: MusicAlbum
  date published: 2023-11-17
album: Hemsi: Chamber Works
  type: MusicAlbum
  date published: 2022-10-14
album: Klebanov: Chamber Works
  type: MusicAlbum
  date published: 2021-08-20
album: Kaufmann: Chamber Works
  type: MusicAlbum
  date published: 2020-08-28
album: Laks: Divertimento, Wind Concertino, Passacaille, String Quartet No. 4, Piano Quintet & Sonatina
  type: MusicAlbum
  date published: 2017-06-01
album: Fitelberg: String Quartets Nos. 1 and 2, Serenade, Sonatine & Nachtmusik
  type: MusicAlbum
  date published: 2015-10-01
album: Robert Müller-Hartmann: String Quartet No. 2, Op. 38 II. Vivace e scherzando
  type: MusicAlbum
  date published: 2023-11-03
album: Hemsi: Quintet, Op. 28: IV. Rondò
  type: MusicAlbum
  date published: 2022-10-07
album: Hemsi: Three Ancient Airs, from the Coplas Sefardies, Op. 30: I. Ballata
  type: MusicAlbum
  date published: 2022-09-02