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 0xca5a8aa4fd789bd9f32c5e00e62433b9bcd20ff9fb711d16156095c54976130f. 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/f72f0733-ff49-4392-af37-8d01ffdad745.json and https://artists.proofprofile.net/proofs/artist/f72f0733-ff49-4392-af37-8d01ffdad745.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xe320dcff24960802b273f62160c82df7c9e493711c326c3fc162bbd1183afa51. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/USJ3V2326240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05cab2d0eda6455a058efe82d3e480159a845447a459f8e77a2c1a4f8fd0aa8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USJ3V2326241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2c0d02bd7bf260c00aa18b675ab6e20fc63bc70d9b55cf68d9cb6c467bd485. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USJ3V2326252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c10df2d5a95265509f33e798e3f02a4830340226e54a7240f46d588fd0a38c2. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:37:53Z), 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/USJ3V1052077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5a432998c65a785c1ebc34784526fb07fa8228fee9011d7902071968bbd53b. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:52:46Z), 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/USJ3V1052078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481077f2a28b9e2cfbc919182bf60c4b5a84338a22af5a0500d892cc2f10341a. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:22:29Z), 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/USJ3V1052083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593f584241ec35f59c572f32fe1f297b0ac8959e38e239ddb5ec50ffd7aaf3d1. 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/USJ3V0626439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814d292ad886bc8eeecfabda527dcb40c58e6bb65639b45eeef82add6a7cd8b6. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/USJ3V0626440.
Tus Favoritos de Orquesta San Vicente de Tito Flores
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e7083c3180481aba242a345ba21429891d6d216ea4626ab7c00777450a2b0b. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QM6N21474467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071220cd8fcd78adc480dd70390583b358664200b3779932d2c1cef30d63823b. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QM6N21474470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0af85d8a45a62bd2ef53354761243cc8d2fe336b05db98e8f3fd25a46d3f11. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/QZMER2087483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b242ed68d598867db0fc05c5fc84a5c93ed4845b6e2475dda2121fda1306b4. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZMER2087482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1f7e56b5145db73dc7fde7c962fdefc36801ae4a43ef4a0074c50a9a9e998a. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZMER2087384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1a5c4faca9e7e30c100414a1d6488c37a76e27ea0bfb4bafc719338dfdefbd. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:08:29Z), 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/QZNWQ2072090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93f569c7d21eb25d6089ee7755f2057bb9e971404f4ee0e36d1f9f7c8f65829. 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/QZPLR2029215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4efb1742cbb0f3d68e742364176bb31bad4b05f92e0bf0fd53f7db5562a0f8f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:43:15Z), 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/QZNWZ2033803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9cefea83c0dc313ec4dfed6ccfbc6e99790f33f5f415ed5047082ce924ad0b7. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:56:12Z), 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/QZPLR2031730.
Concierto En Vivo San Miguel 2021 (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63790ba8c2ca2977894d5e242e02b45e1b97aafe1c82fec294234d57e5c8f4b8. 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/QZPLS2135324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a637a3cb29a2b51c75a3d07ff418e17a2a5b036a1ac5d05a41190e97a43dc6. 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/QZHNC2381546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c600fd7148787199198ede568ee22c304c1f4dc91c97ceb58c002bb60a1299. 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/QZK6N2584506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a3a6769fa6d14c3d15e30468ab804794b339345bb4cae3d8b26a5fb43e86f2. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QT3FF2570152.