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 0xc500843a45d89649cc91cc264d8b483a3eea496bb73f6720a9111713e2d5fbd5. 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/05841d67-ae20-4ea5-9ed5-8799761781e8.json and https://artists.proofprofile.net/proofs/artist/05841d67-ae20-4ea5-9ed5-8799761781e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Himnos Militares de la Republica Mexicana
Himno de la Artillería del Ejército Mexicano
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 0x77778f723ff21b11b93cb47d7ec480ea0e027649e0d915d5f377a0bbe635cef0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZMEQ2130415.
Himno de la Heroica Escuela Naval Militar de la Armada de México
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1a3806eb2e0ea72292cc21d15f4eb24082ddbde61e1a36027ff400561c89a4. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZMEN2109541.
Himno de la Infantería de Marina de la Armada de México
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e85397fa32b8b908511e8600c6c7de5fec8abdff81280d89cedcd3b15a187b5. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZMEQ2130418.
Himno de la Policía Militar del Ejército Mexicano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x672a51b818f423ca2c4ec8b7392ed144c895810804c5bc049cd20e2761c9cd8a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZMEQ2130421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d482514bb569ba487ea0d657bc25d93c067d3f150ec7a310d6d2d7eb4de168f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZMEQ2130424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ed5773cbe3412bd556d8c39ef0e3aaec0ec4dad9b28bb4043927de17ee57d5. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZMEQ2130425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ba08604870f144858d9a35f3b1e910510f6a07d013c6ccfdbec95e67a115a1. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/QZMEQ2130426.
Himnos Estatales de la Republica Mexicana
Himno al Estado de Baja California Canto a Baja California
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbafa0a6e7fcb6aee1828c1831da219c6cc80e194f4b3bb85630d72b7d1f37cd4. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZES62262826.
Himno al Estado de Chiapas Himno a Chiapas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33dcc105aeb4ca5c793d6609b665cf2f0ce0eb7906a9e0824bfa299604b8841. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZES62262829.
Himno al Estado de Chihuahua Himno del Estado de Chihuahua
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc607362be39c798814f2783312a9fc58bb07be2b3fa478c936f0983d48bfc61a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZES62262830.
Himno al Estado de Coahuila Himno Coahuilense
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcbb9b82c07f8db3725ae608bfaa62fe0d236a67f9ae4e08daca874ef1fb0c76. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/QZES62262831.
Himno al Estado de Jalisco Himno del Estado de Jalisco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8088b28162efeca4aa929e036b137a32a0c8f8d854486193ea523f773a932f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZES62262837.
Himno al Estado de Quintana Roo Himno a Quintana Roo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dacb4ac5458e21affdf298324ae490b6e3a3c70f8c3f94420801fb8ef064fdf. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZES62262845.
Himno al Estado de Tabasco Marcha Tabasco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c67f3ef8b8ce0bd5b51ad3f4448470bc928f6b1be002553fb9193b3354e82c. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QZES62262849.
Himno al Estado de Tamaulipas Himno a Tamaulipas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2256fb4c82078abf428f0c39cbfcc750f3b9a156cf963fb142f76b75a59ef548. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZES62262850.
Himno Nacional Mexicano - Version Completa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f747a2eb5f35ae31fdf110e5f2358e37b62a620be5bcda8e59dad016fd322e. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZES62262855.
Himno de la Brigada de Fusileros Paracaidistas de la Fuerza Aérea Mexicana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08547dec2b8bb97bb49c94a40576093493081db00d74231e5e88c83ea06b097d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZES62265118.
Himno del Cuerpo General Marina de México
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8526fd0ea0ad007346b082f52c416a691516745de9e5834e58816ab1e5518c. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/QZES62265135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9fb198d0648394fa63b9c52b7e88021d174366bffbeac2c27e7fc3d70e78436. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZES62265139.
Marcha de la Infantería del Ejército Mexicano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3e128f71c83aeabc3edf043b0dd62d5407774c1a6544b09e18bcee8648635d. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:28:11Z), 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/QZES62265140.