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 0x25908146cde14f52bb442a1a36c444005b251c034bd0b2ea9fa0a99efd8e7ff6. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/336b456a-4260-4cda-b89c-198f2548c093.json and https://artists.proofprofile.net/proofs/artist/336b456a-4260-4cda-b89c-198f2548c093.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 0xd33a59e194becf2aafc7c5c6a6a400707eb187f4b2baf0dcbc929541cd8131c6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USA2P0717149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bf4d5d53399ffbca6b5ea4ee10979e96a65201fc0986762497fd2f4bb9127f. 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/USA2P0717159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499952f8613f8805f7384b0c55082b414e5ee63da1369691253bbce2dfbffdfd. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/USA2P0717150.
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 0xc985f33998bac2fbc2a611e46b90f0f1845e6e199ab0da4f17cd5192cffd0f24. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USA2P0717163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0caf3739972de405c511aefb33715aa037d8ec02ae036e3eaf674fdfac6e45. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/USA2P0717164.
Business Brain (feat. Cougnut, Shag Nasty & Mike Marshall)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5c5bbf2d444aafe845cff254e484713b15a70111b2916f1fdaf26216a37adb. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USUYG1009462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ca804805861b1c024842fed1c36b53ca018ff64e5d0272a767acad3cd7f87c. 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/USUYG1009472.
Million Dollar Classics 1997-1999 (Digital Box Set)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f049ddf59e9daf917b0bc23b7d63c2e38eed21e8aba31f6070fbb501f78f205. 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/USQY50944728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ce7715bde9954c4fe14540999941674c39fb80b7f9b415603ebe73a32a286d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USA2P1603694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e296b38fb064856a3c2e32bb38f5ccfdecc0b7aee7d7b7ff06b0dd400908a8. 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/USQY50935144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c30c7b6f09137e0b69eef6b5e274207a5c148f03f7f3350698fa4f0696b8ce. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:53:52Z), 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/USA2P0834460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9826f2485489b5e7972344d60bb402cc5fe74a1f483185e3278d9e2f0ce1a0. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/USQY50944703.
Fuck The World (feat. Killa Keise, Big Boddi Goddi & Baldhead Rick)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f8df19fd745ec95b265ae6210d0947d2058f8852854a73276a5825b21cd8ab. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/USUYG1227054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20704cfcd2f780ad1463f3061b1267cb571700a9382367fe66a8d25bd4e6c4f0. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZKMT2050264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9259d5cd912dbc2351abcb3aff63daa9e00aeac9f1a75270f94ff33d86b8524c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USA2P0802917.