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 0x1a0385346eaecc2697aced236114844b5bb69ecb3d5a5734f51dc143fffa183c. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35bbd23d-a5e4-4bdb-8b8c-e8d9caa50da3.json and https://artists.proofprofile.net/proofs/artist/35bbd23d-a5e4-4bdb-8b8c-e8d9caa50da3.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 0xf810b3c23fa0dc2f6fd5b0657c27017c67d652a6280da16f5a29d992e9a8a9c8. 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/US3DF2246313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff626667097da5db17ddebacda76e099537a2241b42d6704f775901df9a43817. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USA2P2248336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f23e99a4fd345c32c13120e7d707f321b5659a2ce8b269998bf387353b19d80. 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/USA2P2248334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71eae445bc4548cc84ecfbb57334ac6f60090b024867b563f6dee701e2140c5e. 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/USA2P2248342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15eac1db0a07f93b6cc0845bb294f7f385e59b5f9cb4ececd01f3e8bad2695aa. 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/USA2P2248335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd898af93dbfa51b1b3354f8ff9b353ecebbaf6c89458b7183291d0cae75ca047. 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/USA2P2248338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211dc3ee0464bfb93e375f970a16a34c1ae3a29f64e9f784de7ff4c07c2f241f. 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/USA2P2248333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25f806924318e04680c4d7e74d5f804e7567346079da0cc037632633b5e06c5. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/USA2P2242749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9de66ee2707850d59f2cdb7cf4eda378f520f481b1bd7bce0ae2cde2e0749c0. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USA2P2248339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27787192c132a3bd4b092d88c5c293f718ff0b5b66a206cbe03193fb26e2a1e2. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USA2P2248337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa900cc57a27d69284a12e67c4f22f688b8cbd256f5017f1832cca8a79361060b. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USA2P2248340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7f27e9ff615a88ae863d92d09f70e787cfc09b1f78a77dcf5143638872f5af. 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/QM3DF2220145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde93a2ddb85e5683d8accd25c97dd1d606f3843074de807eda59ecd0418c2088. 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/QZDQH2263495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8034552b4477d4d0e113d150d68fbaf5c9d9b6a5e940a40d57163ce68049c4a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZDQH2256320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636d1ff37bd82bd35346ccfeaff4b63e691289b0c232f803ff9e1efe0a54c550. 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/QZDQH2256331.
En Vivo ft La Banda Del Charko y Grupo SobreNivel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ee764760c11049a3b35cf68411715b8a6880a7f4404cd80f4ccc5cdddab002. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QM3DF2121014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fd3d2950bdd275e62d26bca0d6b57b22adc8ea82bbed7a43b22e1fb0bdca47. 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/QM3DF2191436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4596853d728474bebc441125c93ff251aa5c44e77cb3b4e2a531dca36a8e03. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM3DF2191423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54afc05bedf9144731b0d914f8a1a926722602e0483b53dff805c801eef810db. 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/QM3DF2162866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907a44f9e1a7c96d1066d420489c1cf22aeb22152c9c590691a9c93748c66949. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZDQH2506495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea79e1dfa7ba4286520bee89b82f74b27593d33216e5f56f68685975680c0edf. 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/USANG2000848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f02f4b90ca4905d3c41990c859b25b343f94a5565d3bbe393c19fbb1e1db95b. 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/USANG2000851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa48516b84e20e2526578e5120bc2a0bf092815ed4bc3d838311ae97c500544e. 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/USANG2000854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b5adb8f3865ee2f6aaaa396c945038938f9bfe0e8378a8dccf211f9c155126. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USANG2000855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1580b5e9643c732acae2774d6e8c3128f1389352f3fcf86cde739f45de321dc8. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USANG2000858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f594b72f70a179a4a5ad42d20d31c137ce4eeffea5c5d5e58ed03162a0b22f0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZDQH2392912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee93d7f459daae1228bd6bee30f1a34bc7a7af61d73fa6860551db4163040c00. 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/QZDQH2392913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b32272eebf46ee9625ca734f5fd982740036974bb3fb756790b72d332014a6. 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/QZDQH2392915.