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 0x6cbbc8d1ccfcf3e484571e368e072784ea17b4dd3048755e288971f2dcc95f60. 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/f1efafab-14af-4c6a-a044-6d82f6d59927.json and https://artists.proofprofile.net/proofs/artist/f1efafab-14af-4c6a-a044-6d82f6d59927.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
O Lord My God (How Great Thou Art) - Live
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 0x4d129838ead2bf3cf8677490d61dce6120e13344a55fade8d2dc05c41f4acd58. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GBBTM0135005.
My Hope Is Built On Nothing Less (On Christ The Solid Rock) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ca0ba3a4c846496749ad889a2bab5a6de4a86556e4c29ad3d3592f4c59d002. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/GBBTM0135009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76cdc74cd0bc3deb35cbee3b916dd77b0c865120bc1c4ca402a056e9d62cade8. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/GBBTM0135002.
Will Your Anchor Hold? (We Have An Anchor) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb522aacf1613ed21ddd0c47b46174b7497b473b6a2956306fc47a1e5ac47ac6. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/GBBTM0135008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d62366f3700155948c0e69ce819abcb55cd1a3f5b20ac2407b29937aba540c. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/GBBTM0346714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0879a7301c19005acb944c3b19827e693ba73088e7e9e73bb313a273d2196f53. 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/GBBTM0456016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca4ae9664d66aed6bebd18c2a681441c0973df6c5124b312ea4eec08d091947. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GBBTM0456022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036e5934012fd8199da5b66d7e83650ce8463bfd6ed2ca08028cd8126b29562f. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/GBBTM0562910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9719c05fd6c402b25e4e10c8e942eaad6eb5bdc724624c79bedf133e8d4893b7. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/GBBTM0562911.
O God of Burning Cleansing Flame (Send The Fire)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6db46e1b1186a381d94f73bbbaba432128c0239087e84d5666e1c47251dd6a3. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/GBBTM0562917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee229f99741de4b579f8ac360bc9efd3d74326b77c55a0258ccb6812af9fc4e. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/GBBTM0562918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134c75d618316a2f8c20f3df23ecd5e1575b8000c00aab9d40c31da8f7765838. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GBBTM0562928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7ea7c030e5596354c172e2d91afbc447f0782ee479cbff6b02652fd5af3075. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/GBBTM0562901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5b7c12c4cdaaeb68fb1726310bce5940863b3881f6c186db3aa5ebbc50db6f. 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/GBBTM0562912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779509ff09fbb0ec7837d2eb6a4c19dade1acbfd0e4299b1a1035966a0174fcf. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/GBBTM0675002.