José María Vitier (born January 7, 1954) is a Cuban music composer and pianist. He has made music for movies and television, as well as compositions for piano, symphonic orchestra, chamber orchestra,
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 0x4809d60eeb04d57f5d6f78f0fe5b382b71f9ff040d8497034a01b33e15b654b3. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8a1c062-4151-4775-8b6d-b1b601079590.json and https://artists.proofprofile.net/proofs/artist/d8a1c062-4151-4775-8b6d-b1b601079590.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Misa cubana a la Virgen de la Caridad (Remasterizado)
Un paraíso bajo las estrellas (Banda Sonora Original)
Misa Cubana a la Virgen de la Caridad del Cobre
Nueve Visiones y otras obras de Cámara (Música de Cámara I)
Misa Cubana: a la Virgen de la Caridad del Cobre
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 0x8921fb33d20e7ae11dc61e9dba4545122148848be61074042c460cca170a986d. 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/ES6081730216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b53c70bf2e6857019c2371dc6d77ed4093a9cbf862b683afc3a7d801ebb2c36. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ES6081730201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a404066ea96f826b25e4d2286cc91ae1d1352007e3021c63b4c20d6f968643. 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/ES6081730217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166a408bcd9957600a16765b6937f91da485a9e9665daa2622db0142f3d367f1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ES6081730202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1978d5648d6c35ded5c6fafce09a45c103e0faa971c1237c964caa8b76fbbff7. 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/ES6081730203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc291931ebfba181b7073697a7ac452ee952afad30ce83f60b963c032a2400dff. 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/ES6081730204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea1a1a5f43709fad69d4345d0f215a52a2a59e6589fa955515250e2fdd08e89. 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/ES6081730208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7fee348153f3ff8d2ed5fb6e7c1fb332510590138ff3535a31fa38b940a676. 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/ES6081730240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8b08bbe49cac2f47ae479b634f67d2ad535d9d57a18ab38eb27bf4e7aae474. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ES6081730214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f15215ef2779fe90de706372d6215439cc1c0e773e59c4e0a519996656cd09. 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/ES6081730215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99cea931ddc810ec4867af61d00cf0dedeab61aa74218dafc088a9569b701561. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/ES6081730228.
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
Tema del Festival de Nuevo Cine Latinoamericano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39b95f9c8add02eed17ac4e3733f574159620272fb35ca5640ac0107847a646. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES6081730229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953df74e4f56602ff53c7726249fcca25eaaad706be6d6afde8b14890b7ccd65. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ES6081730209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923c8b2e24af5d58c366bff722dfea94a2b65b51a7446410b824e273e88e5535. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ES6081730210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf575712b0b52c5c9a8a388e782a7d00e87c6b5d20fbcd7bd214deeb24de32005. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ES6081730211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0024ff634f20e23ecc107b5d09631a71a3157dfe3da2980c25dac444fbeffc29. 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/ES71G2313715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b143ba3090d5d29a7c5b6e97875ce3b11ac226860b68ddf96b1b842718c7aa. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ES71G2313713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7829f4cd786929fb3e220a08cb84b0707d0f01b0f1de7e272ba2ff8a48b8034. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/ES5300714019.