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 0xa739d272aeff2b14e804a30d67b0a4a5e0ee82a0543ab2575ef9509f4223afe0. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/24e79ea7-e444-462f-b40e-0bf3eddd4316.json and https://artists.proofprofile.net/proofs/artist/24e79ea7-e444-462f-b40e-0bf3eddd4316.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 0x83db85c9f6ea49da307653425a2957e2fd5c591a9e9cc9f8c543930883afef6f. 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/USASN0542201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46bbc76c27669b7b5478d51d1e168050a00bec24c08d93e32fd21e862dc09653. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/USASN0542202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2582141e3033692b29b3a2568d60ed1a3659bbfab18ce63b98006b1d03408af. 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/USASN0542203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x885e4fdef4e563468468fabd242c0e75ac896f48e0d270d33e401147ffe82101. 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/USASN0542210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab84d16d9591f2a89d60fd172d50117dd79cae09b9a8ac9ca8851698e95fa5b. 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/USASN0542211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec8c755fb4700f07ead947c46b4bed61d8759024ee30603cb0ac52434dc8589. 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/USASN0542212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21bd4d88c13b25c54e1c925747ff729af7c71354fe5ce11bd81b5ad240e2d41. 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/USASN0540802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3534cdcfdc431b7ef9b7192e3457fa33788e9d37de16535eef0818d91f335d. 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/USASN0540804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76e2d6085594ce2505f370de062fee7af0680ccc2be3d96446df8f6c3161134. 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/USASN0540807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfb1ab83c9bd1a7012999da5781eb4e23c62c35a672ec4b8919d00e15bd4219. 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/USASN0540809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0206d77de3520baa3d2dbcea3f6592d9f1f3db21a296be0144acd38a9848d37a. 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/USASN0540811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252b4cb8c459ba33ad8a220da821c944f33c8101ec3d9151c8bfa9d96dfaf698. 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/USASN0540812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8685ddfc8be97f68b0d160bf679df51ae8ac43ffb7c61f77df4ce36545cb014a. 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/USASN0901513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73696a2823b0d951b1578a7acc8bb937ce439447fe1abc7f1457034339f100d. 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/USASN0542204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56e025cef5ac84d07816d24c15976c413c1bb16d446e7032a65608570ad787b. 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/USASN0540806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40bedacf2f662d35eb26d27553454ae817b8b0dba60a0171e5dc44901e6ccb96. 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/USASN0541406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5268be394431a3cee320154b93cec3228dc08cd25072ff632ff067e03a0ffea. 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/USASN0602887.