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 0xa1506db687ebd3b62de7b86f57b895d1901aa86862f5f97e0cd0a44f4cf9df42. 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/e8d331a3-9eb1-43a9-943d-d5f37ce40bbc.json and https://artists.proofprofile.net/proofs/artist/e8d331a3-9eb1-43a9-943d-d5f37ce40bbc.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 0x7ed924cd6751b57884c858aff0562fab03b45f59af1adf49eb0dc931dff52f20. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USVE20800163.
Sunday Morning - A Collection of Today's Gospel Favorites
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff616d56874b2b7bfb15abb0ebca199d33662a169cf45bc08198662303d067b. 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/USVE21100020.
Famous For (I Believe) [Sunday A.M. Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f55425f14d5b74168ae7ef818889e94bce1579bd64a608d86f010d033a9652. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA5W2000255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f55425f14d5b74168ae7ef818889e94bce1579bd64a608d86f010d033a9652. 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/USA5W2000255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643975e406a6bd7fec6b6608657ce0dd2c51ac11c03f2391ea8f79ae0f9b42aa. 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/USA5W2000236.
Trenches (Sunday A.M. / Stellar Awards Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e328ec043dd169721640d07c159536aa465acd823ecceac8020f4926c189d0. 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/USA5W2000237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3450fd84d268b6b1cfb818ab6179dbe806b699ddccad412eb03a47e82485d9ec. 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/US5ED1300166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d256564b699f763ff55f35f6703fa2a6ead347ec78d23f42cfe3d2b6f21b4c5. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USVE21100019.
Remember Me: The Mahalia Jackson Story (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ce2d848b6401edaab9d40fa90c3509bbbeeebf95fca9facb7d666371f50632. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZDQL2200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848e59f482c75685214c997f395b98aab35582aab94ef34b86d1e3d31977c4a3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USVE21000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff616d56874b2b7bfb15abb0ebca199d33662a169cf45bc08198662303d067b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USVE21100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19369a52c4f5296532612ddb1281836f2252fab4a469a5a2f7eba0e4e2887043. 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/USVE21100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234d5419aa75c38067c7a8b573d3ecbf69a015769d5c9d59548ac759f7ae8970. 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/USVE21100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03c70b03ba5eb337893f9afb6328049045687a1f99e14c208bbaf893f322f3b. 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/USVE21100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23a4e1895103c1f1c4f5e22ff3e5dc3061823262147428ef3ccbc4a1928b6a6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USVE21100025.
Strange Land (feat. Keith Staten & Jason Nelson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f1da63f823a2f784581186c3f2f5793c9fdd37d0d91410841d89188169dfdc. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USVE21100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736d74811c580ab488a17934c20155d096b05fda3232ce9436fbb5ca3394ce7f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USVE21100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28468da4ccaa9fd26abb25f91634ecd62719ce534df86aa133ab65128c4dadf1. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/USVE21100029.
The "I Am" Factor (featuring Bishop Tudor Bismark)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932b894d808b640d5a4e95dc38314ee06eab73947105bc02332a2859e2da3a30. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USVE21100023.
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 0x63c797c7cacb694099fbfb49790c8a22fa34f1dc932904c33f677541a281fa29. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USVE21100028.