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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6acaa4c30f56294d0e683043ab839619222f4a5bf2383b7415869cb790ff6799. 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/1e39ddb7-460f-4ec6-a4e1-e642710b2956.json and https://artists.proofprofile.net/proofs/artist/1e39ddb7-460f-4ec6-a4e1-e642710b2956.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c9bca4d473214de06bd9a47528383c42b9efb3887ee28a4ce02734a5cf760e. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZHN52327392.
O Praise The Name (Anástasis) - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86344aa0dcc9db783a281993e93f96d78218bc79967e3e7a7e72002a4ce3ed92. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZHN52327395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0d31eb269f87b52e3b863d14aa058a43b1862f8d35128d58dc20642135a58f. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/QZHN52327397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4cd0a282207ed0b5223d689f91f16747f13c080713e67bf8c7f74a7780c7a14. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZHN52327398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53de6d160f31e3efd32c3d039d69ae441f0193c149f0f2a62bdc7bd905333f9c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHN52327399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9148f25d71981c6becba1f9a9e868512e4adba8545351f7725075172e163ee1. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZHN92353097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e3e85c65faafe2fd3cba2c6ba49c6ebe7021bafaf3d1a9b345be4212ff9541. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZHN92353099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3722879dddc3731e3c5a733135a265c0c7dacfa5a74d7e9a98cac3f0806eff. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QZHNC2357793.
Thank You Jesus For The Blood - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d97126e774e5320d03c06d60cb1d5520db8b63b30b12d3cb0afb2076133729. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QZHNC2357794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee0d867b14cb8e8dab69f32436e6f9f1e09802d1db4d4c2d3197f161ec45914. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZHNC2357796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930a9f66e3bbdadc72b4101577eb5aa11a3a610bc5ec543cb814efd823db6de8. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/QZK6K2351740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955211fd1a35d6b5f463e99ec95c244d6487fd587c04c2ddbdc1422fe9a332cf. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QZK6L2380940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2773a6888325b7b4e33d148718343ca0aa6d46306c0e2d43ed6c3fb4132d5e. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T05:21:06Z), 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/QZMEQ2359579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16356b6a5c9766dfbb1e151811e9c040cf6f70b46ad5e483e039c1b2c0e4cc23. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZMEQ2359581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382510e34a2388a617dda51f06d62965d53679f87d4e54074c9c21e3edc4eaf9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZMEQ2359642.