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 0x892bcc52fa7de1cb6136c8cd48ef406d1012954383933f8c5fa3c5f42ab5d33c. 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/36df4728-6c4d-4aa4-9dd9-cb5a4c561b3c.json and https://artists.proofprofile.net/proofs/artist/36df4728-6c4d-4aa4-9dd9-cb5a4c561b3c.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 0xc2760423149db63f46d0f28c2acf44738f43cc5191dbd23d673e1bdafd140583. 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/GBKPL2149082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd675423a6dd148c1300063ecc01644ac2b16a18f6b007834a57a31eec6b0fa7e. 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/GBKPL2149196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ed483264a75768b3ead504876caae485de470c845c3da4e48357f0c80d6d84. 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/GBKPL2145617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7faf29b2c01f4a864de9916762bb905ce7d762d7a833e945c2b203b84d393326. 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/GBKPL2142651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea02fe666b052859794e2a8613e1efe66e17e02ae23eb97d6d3e693837f7538. 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/GBKPL2142553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d48f4c706b8b933eb013f2425ce32102ec0871403ff372c03a04832aa15f0c. 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/GBKPL2137695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bea19f53ac240f63349d63451de525047521c02468d4af4fdb5cfbd299f3b1b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:40:45Z), 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/GBKPL2139512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc286b559002ce4f2d3792d54a05aff83d3b31056abd35cd9cc12c909710a376a. 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/GBKPL2138932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38826e6d581ead6c8f8ce0e164210039c903e9c21e7e268c91f8f9c577ae8a57. 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/GBKPL2138073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f78092d7870c1310ec1edde71785b8f85f6ee500322839e433a15cb006ff992. 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/GBKPL2137458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6196059fc78d9fc542d494a78faa3ed8eb63a3fbd592e2bbb7550252c9f4dcc9. 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/GBKPL2034194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb227a99f863b5af22aead658a121021ebcaf4175baa2e5811a7b946ed577980c. 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/GBKPL2030310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a87a5b36d0ef9a202412e1eb7f01684739f07a0c18f7ab30ca25713e291ddbd. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:43:08Z), 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/GBKPL2023818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9758392a0ce414c4f50a434843a4f598de9e7c3a05e15ae3a0f96e07ff1a5aa3. 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/GBKPL2024408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c40f63c8687f38c4fc7d8843c9696d77cc0c05bd697ee034ffc0e473b61d0c. 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/GBKPL2022563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c88d8f1e8d677f3fa5badecf408ac455e7495f2e7da530279ee3d4ae05b997b. 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/GBKPL2022243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3d80a0f5e65daf18603795122af41b1f3cba4f59919375a4fca4f0bdf4ce65. 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/GBKPL2020594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8620f7e86bc0d0a5fc90fbe61c069e22c60e399c79db57e6af39817d5e55645. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:41:19Z), 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/GBKPL2019598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c5e0b31fcda4475ad11172172bd376a5efd6ddd6312466dba3999833dcf0e0. 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/GBKPL2016861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa191df853663d802470d81cf667f4ea025dad154246af0f4e648b4cb270024db. 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/GBKPL2016567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98502befc35af3037a14e777363ecd9ee8f444fdeacda3c6c31f219b46bc4b89. 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/GBKPL2015655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4c5367f2250f51860ae2018ee5bd907309869338073763ab26ece34195d5f9. 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/USDY42089724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c921db7648a1e0292b4a8ed216b1489ec71cf0cb1c071f2cdeb3fc775d2969d. 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/GBKPL2005534.