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 0xa0595be2a46bbe1e1b35963f208c1bcab90782a22611de0c1edbf0b47436a7a7. 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/7edca8f3-d4f6-4002-b823-913b8beae02c.json and https://artists.proofprofile.net/proofs/artist/7edca8f3-d4f6-4002-b823-913b8beae02c.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 0x392188c362ef68ab5698850a18a486d7cd3f84518e9b644d3ba9131e301c9029. 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/QZGXC2200597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e02e6f3c52ba9125d096bf43f06d17e70bf4aa942184f41dff78eab4f46641. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZGXC2300810.
Sunday Kinda Love (feat. Aaron Lindsey, PJ Morton & Nikki Ross)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761dea3da87dda15f3bd2907dd64fc47ac663a642c76dcd97557ddc3eaede0c1. 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/USRC11301465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761dea3da87dda15f3bd2907dd64fc47ac663a642c76dcd97557ddc3eaede0c1. 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/USRC11301465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e75d015ebab87aa535e00d265eeef340a0f55eb0772622fe47ca0dcccf9573. 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/US25L2100276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1265086a4ce9cbb4873179384fdfc029180ff6c00aaee99ad13ecdf555f3c9b5. 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/US25L2100278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e75d015ebab87aa535e00d265eeef340a0f55eb0772622fe47ca0dcccf9573. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/US25L2100276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1265086a4ce9cbb4873179384fdfc029180ff6c00aaee99ad13ecdf555f3c9b5. 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/US25L2100278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5547f993f7a7a9539e7a057a7f3f311b6dd0e32029109ceac4f1cc1f1e527256. 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/US25L1200347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650a2c451a38e97f3283735ba41e5d9522976c9c2036c9124a8384fce8684cab. 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/US25L1200355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e75d015ebab87aa535e00d265eeef340a0f55eb0772622fe47ca0dcccf9573. 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/US25L2100276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1265086a4ce9cbb4873179384fdfc029180ff6c00aaee99ad13ecdf555f3c9b5. 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/US25L2100278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1265086a4ce9cbb4873179384fdfc029180ff6c00aaee99ad13ecdf555f3c9b5. 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/US25L2100278.