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 0xc7a04cd146a2f22a84e41aa2403d1ce4a52bc30d822145fe4c859520f21e558f. 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/989988aa-b036-490a-8b44-70b6eac3d16e.json and https://artists.proofprofile.net/proofs/artist/989988aa-b036-490a-8b44-70b6eac3d16e.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 0xcb157e56f329140562439dd757e2e2e1809dfa759e8655382af4b95c04666b28. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:18:54Z), 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/TCACE1556600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32cd9f7195b393b2fb28cf53301fb80701a7a14fb6ee0dc6647c67b01713e3cc. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCACE1556602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5198c0a04d499932ead0f4d86136ec1859cee92ad13bc55bde54ce9d407b5f6e. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:09:45Z), 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/TCACE1556603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd3aa89570a43f9eadff0c456694175ae776e9f9089dfc0961aed8447e299f9. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:07:00Z), 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/TCACE1556605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72f253b2a82cdd173f6896d86ee926a0476dd09afc38a7fe30ed2f44c77e5e8. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/TCACE1556612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb091d35d90166b37d2329fe8da0c24c2136768d9aa62490638b58140e4fa87. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCACE1556644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccfbdf20bd0969e5df2fbb8523a49b381b8a699edb82abf425a34b107e769f54. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCACW1616563.
Money Can't Buy Love (feat. TheRealVSpence)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356b684ecc5a09e15c0b521123d6ba218b3232aab40d5b2c5fc311a9787599a0. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/TCADE1710490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54506e8eb73f67e02bf2b6ac186798155a335554962577129cd854e6d1da0222. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCADI1743302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b6b781eb1b21739643897745cb936c10b33c70fc820301aab572440a6ebecb. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:27:49Z), 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/TCADL1804663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234fbb23ffcadbb1f3b84ec3cf7e1921b2d1c3d9de03445c15629ef1974cd86f. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/TCADL1804664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef998d950c4d7d4daf066ebf1af04a0622870a037ffc4366cdcf397a976b5ac6. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/TCADN1874840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a388536155b3df9be7eb7113238ab27f653b6f5e4dbd7c4c146393a060d337. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:25:23Z), 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/TCADN1874841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a329ea3df75715e4d36e81072d62d15a41a44ad75175fd0d44374fa34f80e8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAEF1920236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83eb0dbb8d4419a03eea77f03c8aee13edf2d92709f17fe52538d723a4b1ce39. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCAEJ1949497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158bca562f871c017e26759953ba549a32020590f98ba3ddda1d0cd27f06f33d. 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/QZANL1719815.