The Orquesta Sinfónica del Estado de México (OSEM) is the symphony orchestra of the State of Mexico. It was founded in 1971 and is based in Toluca, Mexico State, Mexico; its home hall is Sala Felipe V
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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 0x4ebb4089b1a02c0f1ceb2dbe90d5c7a1e1bcd0468d9eadee00e39605cceafdde. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad648d93-4cc1-4a79-aa26-a869bf7b9e1a.json and https://artists.proofprofile.net/proofs/artist/ad648d93-4cc1-4a79-aa26-a869bf7b9e1a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lo Mejor de Enrique Bátiz, Vol. 5: Carlos Chávez
Lo Mejor de Enrique Bátiz, Vol. 3: Galindo - Revueltas - Moncayo
Yepes: Romance Anónimo (From "Jeux interdits")
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 0x8154c748af5e8220423173c5e51ee1a6e8122f7e8b61f999a0e591ac7507de12. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRZ110800098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ddc9c20993a5d20bff11a60d9c2ca95088633837d24bf759ae3637bbd60449. 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/GBAYC8801373.
Jesu, Joy Of Man's Desiring from Cantata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba31924e5d60a3fbc9a5b44654bd8f1bdf0b575451b64efc6c8c5bd5ac6075e4. 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/USAR29301031.
Vivaldi: Guitar Concerto in D Major, RV 93: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3e0e6d442c5a289d500027ae0a9b2de362b0644d11ca49816d5e89a369a92d. 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/GBAYC9300578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f91f0ae043f1e2a09cc1ad1633d067a87d786c71ef45614212e45c2da3c8993. 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/DEA340701511.
Harpsichord Concerto oin E BWV 1053 - I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47702c8938f30391e6e12bb7cc0834452cb136424414588aa261234a8d4d5030. 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/USAR20800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e07f5156a316f005e9ac3ea0da5f78b58ae26db06ec1d499f12e238d6db6df7. 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/MXF017400514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ea2b3fd52e49097d348dc940ea104f5873936cabbec309b229e12dd6db1b45. 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/MXF017400516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972e04612deeb466752622a811751c7cfb54ea2514877b44cfd9b13278f4b28a. 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/MXF017400512.
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
Lo Mejor de Enrique Bátiz, Vol. 24: Joaquín Rodrigo - Tres Conciertos para Guitarra
Lo Mejor de Enrique Bátiz, Vol. 23: Joaquin Rodrigo - Obras Orquestales, Vol. 2
Lo Mejor de Enrique Bátiz, Vol. 22: Joaquin Rodrigo - Obras Orquestales, Vol. 1
Lo Mejor de Enrique Bátiz Vol. 21: Música de México y España
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b902140c6446928f421eadba540c49dce0356f11b5f6225afbe55520893628. 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/USL4Q2475843.
Lo Mejor de Enrique Bátiz, Vol. 20: Verdi
Lo Mejor de Enrique Bátiz Vol. 19: Rossini Oberturas
Lo Mejor de Enrique Bátiz Vol. 17 / 18: Schumann las Cuatro Sinfonias
Lo Mejor de Enrique Bátiz, Vol. 14: Sinfonía No 9 Con Coro Final Sobre la "Oda a la Alegría" De Shiller
Lo Mejor de Enrique Bátiz Vol. 13: Beethoven Sinfonías 7 y 8
Lo Mejor de Enrique Bátiz Vol. 12: Beethoven Sinfonías 5 y 4
Lo Mejor de Enrique Bátiz Vol. 11: Beethoven Sinfonías 6 y 2
Lo Mejor de Enrique Bátiz, Vol. 9: Tchaikovski - Sinfonía No. 6 "Patética"
Lo Mejor de Enrique Bátiz, Vol. 8:Tchaikovski - Sinfonía No. 3 "Polaca"
Lo Mejor de Enrique Bátiz, Vol. 10: Beethoven - Sinfonías 3 y 1
Lo Mejor de Enrique Bátiz Vol. 6: Tchaikovski - Sinfonías 1 y 4
Lo Mejor De Enrique Bátiz, Vol. 7: Tchaikovski - Sinfonías 2 y 5
Lo Mejor de Enrique Bátiz, Vol. 4: Manuel M. Ponce