PostClassical Ensemble
type: MusicGroup
description: The PostClassical Ensemble (PCE) is a classical music ensemble from Washington, D.C. The organization was founded by conductor Angel Gil-Ordoñez and music historian Joseph Horowitz in 2003. History F
popularity: 3
followers: 92
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3899f0d4d36ec0de15b15f4799df637fcaddd022452f3fbbce729fd76b934639
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5352d7ef-e16b-4451-bc81-eebba2efe147.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5352d7ef-e16b-4451-bc81-eebba2efe147.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5352d7ef-e16b-4451-bc81-eebba2efe147
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3899f0d4d36ec0de15b15f4799df637fcaddd022452f3fbbce729fd76b934639","name":"PostClassical Ensemble","registered_at":"2026-06-16T18:56:17Z","symbol":"NIM1144596","token_address":"0xee936ce33f32e2695b766e7a06651ca587a28d4b","type":"artist","uuid":"5352d7ef-e16b-4451-bc81-eebba2efe147"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3899f0d4d36ec0de15b15f4799df637fcaddd022452f3fbbce729fd76b934639. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5352d7ef-e16b-4451-bc81-eebba2efe147.json and https://artists.proofprofile.net/proofs/artist/5352d7ef-e16b-4451-bc81-eebba2efe147.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x3899f0d4d36ec0de15b15f4799df637fcaddd022452f3fbbce729fd76b934639","name":"PostClassical Ensemble","registered_at":"2026-06-16T18:56:17Z","symbol":"NIM1144596","token_address":"0xee936ce33f32e2695b766e7a06651ca587a28d4b","type":"artist","uuid":"5352d7ef-e16b-4451-bc81-eebba2efe147"}
album: 2 Classic Political Film Scores (Original Scores)
  type: MusicAlbum
  date published: 2022-03-11