1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x81ae579e08d3d4df9f2c4fe567d58aa6e5dde6701c8d43cd5c7eeb8d8fbad6fc. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/59bcf97d-fc93-431f-a791-a96e7ca35f20.json and https://artists.proofprofile.net/proofs/artist/59bcf97d-fc93-431f-a791-a96e7ca35f20.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 → block OTSBitcoinBlock must exist at that height 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 0x2181d5fbac982bf68408cefa7f792a2a29861e1cfae667871fbc9854a8fc31da. 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/GBKPL1801618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5673cc8adfdf1cb3984128d9a1351f68f76c2fb2526345f1034138b7d2a63ac5. 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/GBKPL1801620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96cc34e0bbbc3a8a59ad49711e5fba6f10c4f5e264d7dc430bd4a38d65eaf989. 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/GBKPL1801622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3608a7bc959be8cb254ceecb6c26f896406e2332a1d5321cda0934d23632644. 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/GBLFP1765556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc560e138cdd3dd7f31e68ff5a1284a4bf187660893a881d600cbba6cc40a3e5c. 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/GBLFP1765935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b53e2d110184b9d85c8163132285951b1caf7131e877cbb996293fa5d2da7c. 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/GBLFP1765934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44224505cfff2e0766f8180d0ae034cc5072a9cb4de38b7f6a21609ee287d6c9. 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/GBKPL1973163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117be4fcafe37caa51cf60fc6abb0449442bf7caf5807dac852c98fc99b6d6b5. 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/GBKPL1973164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576d52ec13b9f9ddb908826352d4db34d62c8d536adda2c9d572b911f8a3d8a8. 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/GBKPL1973165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21325f9322c5e33978c728b5101f9ab6cf22cd05b3e87a1c7cec1e9f121fef10. 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/GBKPL1973166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2dd1a019646bc36a16a29f35b506a55a5188ca966e9a1625b47461c8cd32227. 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/GBKPL1973167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524702ac1423d76f05af6c7cacb9894c835746c440663bdd2cc7523306da89bd. 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/GBKPL1973168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1d62ee5a693ef80d0aa199314eb0c5085effc5bc6939eee21776fc066d14d4. 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/GBKPL1973170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee075ea871f0e254cf1dbd26e387a1bfee6ca67974395281a490c86f9c54512. 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/GBKPL1973171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582eb67b2c642313cc1fe411e46a40baf53633d67c3c919ea5eb46b5185ff4e3. 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/GBKPL1973172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbcdcfa517d5a789811d202a2863777c360bbcce44adaeca77437e31f9c095a. 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/GBKPL1973173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61bb30e3c05530f5c8277fbccce9139db9b4902eaba98e5fbab048f258133954. 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/GBKPL1950836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf272a775842fec6d09a7d64d8c81ab80a0b57853333a4bb4a3292736bf5fcc78. 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/GBKPL1950835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3f02ba2c63aaf96f25a7d29e4cdd078eca231a0bb75b8ffa26698f84710eec. 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/GBKPL1950833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06971480afe023b519f16d82d24cd62d25597ecd4c5c94ca42288299e4fb1cba. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBKPL1950832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649d7b0ecea31d69ab7353a9e3767b4fdae5dea82a040fe02fbc9802d5f0ea95. 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/GBKPL1934799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb18a7f13829dad5534b203e299ba458612bf5775f40035f977b2b003e34bed3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBKPL1807053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c241252441f7e54340c75207a5fbfda5e80fb0d05e1201024f17951ebb7c2a1. 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/GBKPL1789600.