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 0x1141d27a54f02b56c0aaa01efdd9d9465250ecf53679a368b40a63a0f5f29a4e. 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/3ac2b009-9286-4dcb-81ce-fadfbbb3a77b.json and https://artists.proofprofile.net/proofs/artist/3ac2b009-9286-4dcb-81ce-fadfbbb3a77b.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 0xa9cdad15c9492356a26954b097ede0c5ddccb9c78ce32866fca424b5e6b72165. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USRC11200578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9a86ce30f7aef40036d2f1d44ffca49456d2b57bacfdef5aaa34acd87245ed. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USRC10100100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cac3867a18a8ddb61be480c48f90edeea4fc3b8ff3a58ef3cd92e466aecb9e1. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USRC17202825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63af49cab207deac02abaddceaf6fe70216026a0a79370826ced484fbedaa90c. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:00:49Z), 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/USRC11500547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9783f7115be40d0992eb34fe34dddbd911baf3ea0b6c0e2ba15cbe3274a336f9. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USRC17302827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6971e399def912d1989a58faf34b454dc7f3a14752580f61cbe6fd224dc4be83. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USRC11500549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52b521577c898db8c5df4e516ddb84881029468f7270d0bbfc986d89471ccf7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USRC11500550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105ee98d3d1e6329a24a9306fb5b6669a1a92bc0c6c5e021168022a3b9f26f92. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USRC11500551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a0d41137af26da63c54e2b25a63f1fac0297e639fab9810e21916f12d69a26. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USRC17402832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5a30007b28b2d4a931c5203512df9976f6f19ba924301f8c41cde99f35fe8c. Chain 2 (Bitcoin): anchored in block 957629 (2026-07-11T23:44:46Z), 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/USBR17500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677ed768bd48bb831a35fccb5c28254158b57a221efd83fe63e53769ca0a8c2a. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USWB10803972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d69a135909b25aec4c9be8530856256cd20132188643968832ef5ca2bf0cf7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USRC10402103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ec7af89cff3fa13b290cf5e8a940d515177b4104cc538908141711080cc1f5. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USRC17102818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538b57a593bffbb5f57ca32699cd974d2599f8ad4f7a71fa3d6f2a6afa7daf1d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:07:32Z), 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/USA560457258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1dce5c8c3b2a89270a202183632a4350441440956ef3ff8fa300a5730cee33. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USRC10100094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9a86ce30f7aef40036d2f1d44ffca49456d2b57bacfdef5aaa34acd87245ed. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:35:01Z), 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/USRC10100100.
The Long And Winding Road & Other Favorites (Digitally Remastered)
Deeper (Mike Maurro Deeper Down Extended Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023d82711e972c7e94b677900331c35eac20daf09433d13e8686d7d08b67049f. 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/USGZ21240923.