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 0xe665f8a154ee8045be06203bb6de269841eac64cd9a27e550034c80bb221da59. 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/1edb9771-d6b2-4581-aedc-6cfc6a94e453.json and https://artists.proofprofile.net/proofs/artist/1edb9771-d6b2-4581-aedc-6cfc6a94e453.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 0x0f6822768bccddbf1e2990a5ca3468b1054ed78a0e0555fa6c714c840d7f5bb7. 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/DEE350253012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b4e58255d753a069075a6513a30d566c9d37fe318d0fff01dfc27fa6b47d87. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/DEE350253014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900b03309e16af73d9a83a0745da1ca70a7e8eadd226482a57405fa2bb857c38. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEE350253015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab78240ba158ae91480c0befd4dc037e2c4a9cee8e255ed61a34df0414291125. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEE350253001.
Animalitos (Ain't No Sunshine) / White Bird
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71cc0a2a6f88a0bbbd59a3de819276ebb457b9618f4839a0a6bad309bb4f89d. 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/DEE350409095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c547c37cb7817d99545782c1e3c01faccf2200ec1a7d8060dbcac67a94e930. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEE350409097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d602c5e99394bd65f516561a305c8be31742c77cdb9bbe3e9c46823eff25a9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEE350610003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b84591b751a293b054a10848e46835c038ebf0079cb16470ee1fa2e45c944ae. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEE350610004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309822d90692db900a66e1176fdfd979fd011c64a572e4dcb8780e619b8e69f9. 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/USG4M0651602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce7b66e70d36f97b9da9731641896d255eabdcbd7565a967f8317f33ebc9a43. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USG4M0651603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1b241835cc714182768fa3f07cd806462445a196f2956970abd12f3a05d5ea. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USG4M0852002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b5fe333a5269c17ce8ea004403738a931332b0a9f7be01dcadfdd229d43c92. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEE351010754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5346cb73ba052620bcea528e66d3a8eabeda60bbec912eee60a7157694d394b. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DEE351010755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d597d188e2b478f209413304830c6c7bfd9de023aa47d664b416e2615dd8567. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USG4M1053602.
Animalitos (Ain’t No Sunshine)/White Bird
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421521b74442d410130d095c6c4ef712245a2879b4b5b690dfc2e2905b0242b4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEE351211158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25bca654c45cde0372ee72a99631084c362e89850ceef9e7b8a61e023cace4a1. 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/DEE351211263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0705a0073a12ca0d045ea3cd0cdcfae6e715820755f25da319e523e770e62341. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/DEE351411631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea45460bdea7aa81f21a74d1b9f2ed824ec0fdd167a65cdb11826add0c090b4. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEE351411633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe493930c3062d44e2f52d782c4abcbe14a85cf809b4084c3db0ae40ab77f20. 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/DEE352012317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dae40f2869fdc634df5af66fba742d9bfaad012b02d63db393288523667f98d. 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/DEE352012319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93015e99da792b3121a4b95f18696895aab15f269692395f90f7be882d87fe2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEE352012320.