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 0x06b72e1f32d34a6eb8818f31a247dab4ce2eb7ebcc18a29c1336efdb01523136. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/56a498b6-4f26-492d-88be-0d539b2cd508.json and https://artists.proofprofile.net/proofs/artist/56a498b6-4f26-492d-88be-0d539b2cd508.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 0xf320fd082f3f3c3c1213815edec514d771c2d234e9d9524e0d4419cf3c1ec79f. 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/GB8KE2322420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b283a35142b4ad6285e2c472dbd3f5aa490d24c062acb562784b933401a8d1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GB8KE2327041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97f1c8c7a9850edbd668195dee8f5ef7b5cf49589f83d544ce2e0f85469b2d5. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GB8KE2403246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c265d448355808650d0c53b362dcd210bce58edf7a42921c5bf1a684c39006. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GB8KE2403843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06fceb62bc079e5a60b44f770a8e6fb6177677f1e3dc6ba9727ae12b1cccfbf. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GB8KE2407023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82025949abe657ee2d593a29a24bb09b01583b76ebcc2464eb0d77fb80bddc6. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:48:58Z), 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/GB8KE2407504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7310b9f9174bd77f97eee6f3862c7ca4f6991d602f966d3c2f2a20ba4cd8e97. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GB8KE2415190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65163a0bb77e5c4718eac13717ca2a54c65d273a90747411c9e5ca4f390a987. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/GB8KE2419422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987353f07ad67fb809994bec2ba3c9c86034e7701ff1db411ad5344dfd3fedb3. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/GB8KE2420562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe454a84075705f6769566183c8010d3d3e07884e500f9b0a23abf601280811. 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/GB8KE2421226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8d5284ecad6b14b60abfc893bfb8b07deadc6d475aa265782e980279fc941a. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GB8KE2425086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb347309e213112c581e3325fa8201e9b255fe0d485a5fa683796eb43e9e68e42. 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/GB8KE2425445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092775e4f861691da7ad7bb1910d88db38bf1b0ccf14e2e05379e0996b8bf0a6. 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/GB8KE2426827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b522b3143d7c4b462de2c3e90574e249227e4ae2bef6d117972adee5013a967. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/GB8KE2428022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ea164f9af76744b90a50ae31c6c6a83e40ccd52de8e4d8606104e822111604. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GB8KE2501292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a23c88ec58696f829ecffb3e550cf9580c09f570541b1abc4b6eef01b4b73b. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:09:51Z), 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/GB8KE2502085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d165880be7136463fd1b0999f5156f8189c588a38c95f252812c8ff16bc450c. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:13:05Z), 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/GB8KE2503124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a37f91202bb680f3440ce841cd3382037279e4e9644583d7adb94ec220646e. 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/GB8KE2503646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ccf9264c76d486855dbb45da2df9e04732f9cd345680c78529c57330c98fd1. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/GB8KE2510137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae3684e5f5b4a1262444cdafe019a604f51055c49bb2e317a154e93dfbb979d. 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/GB8KE2515057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391a2c4cbf1f4ebd47beafe2bc6ad259b65c43698ff3b901f0ea4669abbcef29. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/GB8KE2516162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec35f03939ff5cdc9f64c8e25065124059379018aa53d92253824eed7622e05. 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/GB8KE2516535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1521b3f1196b3fd348227411c22bf8b52dd3f2fc63f7b521ceeb62e2b5a6e2a3. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/GB8KE2517398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1477a93e0bf575f867b11f3fad3716efd66c04748ea90ed56152cf614e43c1a. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:28:34Z), 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/GB8KE2518355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382bb4a1a27a7390e3f7abf348c4a153904b4d43b91adc1c92fc866ea1fed210. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GB8KE2519787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cffa74dbb24f00b7b37129c0c4fe724a8738e69606573564c2676bb8cf731df. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:35:33Z), 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/GB8KE2520648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531f3907960056b8c895d30d384f72cd454df33918eb32f52cc0d4d22ab326ce. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:19:41Z), 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/GB8KE2521147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ed5ce670d603a6621b7a7fcf047f9d52c6ae6b115420cc80867d38209707df. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/GB8KE2521547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b4ba7c176f6d8b256e94cf7690c5a1baf9d6cca5bda4456736966a4d3909e3. 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/GB8KE2525246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93da595504834e564562476134e68db4fff46c31f1168a4e85405a1b95cd066. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:00:34Z), 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/GB8KE2526500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde475d00bf758e51c56c12e1492fc8dafe517d0c8bb1a312962de28cdac06ca. 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/GB8KE2421618.