Cristian Măcelaru (born 15 March 1980, Timișoara, Romania) is a Romanian conductor. He is currently music director of the Orchestre National de France and of the Cincinnati Symphony Orchestra. Biogra
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea616d4e8d44911187e8d6526a68952e5192e34f53e7661d7f0ef13d85a8ccd1. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75dc7dd4-4953-4b0f-ad95-5b17e11655af.json and https://artists.proofprofile.net/proofs/artist/75dc7dd4-4953-4b0f-ad95-5b17e11655af.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dvořák: Legends Op. 59, Czech Suite Op. 39
Legends, Op. 59, B. 122: VI. Allegro con moto
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e5db8a92af5ced1ebd985da1d234337777b24c8ea2559e02bad9275fceb4f9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBASH2271006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12495715b196f1f03f99612fd0ddc03592b17227f144346065be2a9a6e0da160. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBASH2271010.
Czech Suite in D Major, Op. 39, B. 93: I. Preludium. Pastorale (Allegro moderato)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c93e3ca37de09faef0a993859f8abe533440b38ed78157f74fc657958e5650. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBASH2271011.
Czech Suite in D Major, Op. 39, B. 93: III. Sousedská. Minuetto (Allegro giusto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f6741cc237a97d7f0a1f8d8da0054598765fb2049552489b8d4444d3952732. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBASH2271013.
Czech Suite in D Major, Op. 39, B. 93: IV. Romance (Andante con moto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46653320e302faa2c63e341d14b3a230b9dc04d4e55eb48be43d4c047fc43afa. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBASH2271014.
Legends, Op. 59, B. 122: I. Allegretto non troppo, quasi andantino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5300ec4b45a08ddcfbcf2ab3e522a889471b06053510c93f0fd3cfd375a80f. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBASH2271001.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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
Legends, Op. 59, B. 122: II. Molto moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d548623bbd115a4a1e33c6e9eb15dce7d00bbd57351133b6beab5bfecbd682. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBASH2271002.
Legends, Op. 59, B. 122: III. Allegro giusto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff2f63d8dfc6e9fd3f1a2b8cd477dd7229a777f826b1213b381e1a201054581. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBASH2271003.
Legends, Op. 59, B. 122: IV. Molto maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d669206bdce40f5409fc67e7c8aba57a688376c9dd4e1b44a4053933962bbb0. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBASH2271004.
Legends, Op. 59, B. 122: V. Allegro giusto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2297104ef76170528bad618a035308dfa1437b86d81774eb40071a26919f90cf. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBASH2271005.
Legends, Op. 59, B. 122: VII. Allegretto grazioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97651a8aa520200403942f418d2f0c82815c7705058f917c45c588a529df023. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBASH2271007.
Czech Suite in D Major, Op. 39, B. 93: V. Finale. Furiant (Presto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f64dab62e9ec311c1f3bc4aa5077414a05304628bd10f899f536d9651c2d15. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBASH2271015.
Violin Concerto, Op. 77: III. Allegro giocoso, ma non troppo vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e820ddfa3cd73d8710b896693e9d038ac09645242631d89d45196872287efb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES382164002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dfa510204178e46b11cbb0e468ee99575bcef41ebb82fcf1d323e2d10f4081b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES382164006.
Piano Concerto No. 1 in D Minor, Op. 15: I. Maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1374ad7d4fd76e77b6c72f3f084656708792496f6a15efa82fe2cb8b46219f79. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBASH2373201.