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 0xef809e51f96c529f840028cf729e98cbd110c25d128f81fef76397ff967d1ee6. 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/e2b3304b-0122-4107-87aa-f54efc162853.json and https://artists.proofprofile.net/proofs/artist/e2b3304b-0122-4107-87aa-f54efc162853.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Música Instrumental Católica (Vol II - Solo piano)
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 0x30816892785de669f8c9fab7f99deb2602496311f6b694c3fb13d5180ccefc60. 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/GX8KD2310780.
Abre los ojos de mi alma (Piano Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a6002e7f1fce7a4f32d729fa20a18b76f35cfc6492a62024566dd99d55c90f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8KD2323959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387e4da6b46273c991d372be640c7e3d0531187e3cd8a503b819a8eab5ff5f0a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8KD2389456.
Toma, Señor, y recibe (Piano Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d64ff2bd5ac4a9db2560d45591ce7eec7bbd8078dd45e15d85bbf519cb657b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8KD2370691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bfc097df88f1d644babd4eb01e94183cc3e8776c48d073f5f9ce5318a63fc52. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8KD2356150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86aee57faa39a84cd31b103b292f53ff0a12f8d93c2bee2c56594882efea2afa. 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/GX8KD2317210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f98f8d71b13c29913d480f14e1f2f9395241721c6bdb92c91a63e05205b52fe. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GX8KD2396857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7585616759160a905927565045e5ad22ea0d93b38e2ea9e92443b0fa434be514. 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/GX8KD2319910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976245a126e61647622e98d4672bb70caaed1c2278c03942a77a24f9e5d30236. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8KD2343307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c94c5bb410923ec92eab08f1f839dc26f52386cb816e67c0f196cd63f603312. 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/GX8KD2326077.
Para darlo a los demás (Piano Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96dee655ac172c1f1f34bcc5f3105c85a537f494789d6dc30b7890ef56eff25. 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/GX8KD2396892.
Bendita sea tu pureza (Piano Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d38a21ad0a44436ec525c5e9536bc7053bda57c17e635f7ba06a739f58249a. 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/GX8KD2304669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b46bd894fc0eae12b159a81fd78c3a9d9235e4422494e3c7c0ea6442d1ef91. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX3HH2177083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7289d9435d3f3e98705e821717642c7557d1a0265b6a63d0f3bbff5db18bf78a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:43:14Z), 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/GX3HH2177084.
Padre me pongo en tus manos (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08305c3b8e5ab50d9198fd667635e002f096117325fe8c71f58a7494dab0adf. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX3HH2177085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b7ba9ad6cda406515c22413c77d59ad1f0dc3d0dae7c205f16fd8758aff013. 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/GX3HH2177086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51276a495afe46abd9f68752a336997bf031c17bd40b23e3942716d1e562a44a. 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/GX3HH2177087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7374b4fd298e5390afec633fee5efc24311da0bf2d49ecc04885f6645c10c864. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:49:10Z), 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/GX3HH2177090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8cdc38b4910b6a48529cbfe81f61c078a0cbd41e9c28b9ee34990701ecb013. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX3HH2177097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57c537b08b7b2bafc12744a4f6e735fdc77a8e0d27a8fcdd8f66c230f0a4bda. 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/GX3HH2177099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9585de23a6661d707b9578d91d8aa3f37e5a3d6df53c70b2ff812467ae665a0. 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/GX3HH2177100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2b3f381d60fdd5b43c316d414a242697cc6f32c36146895f72f2af8b4a03ef. 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/GX3HH2177101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc9591b7a899f2dbefc3c44c7708911991db6b1c0e0fa83c98b65338338c3de. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX3HH2177102.
Himno a Santa Rosa (En el jardín de la Iglesia)