José Serebrier (born 3 December 1938) is a Uruguayan conductor and composer. He is one of the most recorded conductors of his generation.Composers José Serebrier www.peermusicclassical.com, accessed
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac4a7e8c2348de6f7fb026c1e4fbec16c1c9dc1c01a4e5c0cd9826b7e7c5d9b9. 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/769b0bbe-80de-47fb-858e-a5792faab3bf.json and https://artists.proofprofile.net/proofs/artist/769b0bbe-80de-47fb-858e-a5792faab3bf.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Symphony No. 9 in E Minor, Op. 95, B. 178, "From the New World": 2. Largo (excerpt)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8db98ece22b4c99c2d63135d552b5dcaa8a874869129c0d8874ff39d64010d. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB00250041 — a six-check JSON result.
Classic ABC TV and Radio Themes from the 1940s to the 2000s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a9f91003312305ee13530f7e73e8127ddbc6be7cdb776d78c49f5598de6f16. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB00450820 — a six-check JSON result.
Elizabethan Serenade II: Classics of British Light Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a9f91003312305ee13530f7e73e8127ddbc6be7cdb776d78c49f5598de6f16. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB00450820 — a six-check JSON result.
Brideshead Revisited Variations: Variation III
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff0470c4c05c9830ffe8497ef9de53ed9327791fd7550ab019edba1d0a764d4. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB00450821 — a six-check JSON result.