1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xd6c5148a46a68d4b95096dd7174e0ca1c144a90b1faca540c6c13df83952cf4a. 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/d07fdfb2-2c47-424f-9ddd-96b0623d69f3.json and https://artists.proofprofile.net/proofs/artist/d07fdfb2-2c47-424f-9ddd-96b0623d69f3.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 → block OTSBitcoinBlock must exist at that height 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 0x811592b32eed96e071a9ce1b6313ca0335cf50e11bfffa6cedf491bbf9e1c141. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/GBER71800417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826081bc6fd8ff5570f960e473fff4237beaf3b8784cc01517bc2b95af7639bb. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/GBER71800421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92a68819e9cc4cf75181ede3db32cd4d871d25136dddbcec5b3008976c58244. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBER71800424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f01cb0c9dc7f45a3e39c33c51923d6ed0369cc5ef128e9ee396c2cb5a3cc0c. 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/UKTY72000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1eca85e4d24cb1ed96ca94831de72f2dd581bd8cacf57161d98652285121db2. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:32:04Z), 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/QMCE32100394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87a0a7303b910cbbc8c24f30c7789ccef4245e9d9fcb15986672209a4d7aa93. 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/QMCE32100397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c653d875e6184425bb0c1ab496ad88941e2810917fe2f8993d2061579d456d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QMCE32100399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e8970ef8a4e79d00c173e9278cbeb5e5b30f86d826b80cc2fc78bb5e1aedb6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QMCE32100400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e941c5facdedf0bf9b767ab50388f35954de2bab32cb4b675880c98ca2e116. 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/QMCE32100404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad6a8be0eddd1019b756ca29d481e59146919301f509890f9feabe9f874c657. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T04:23:18Z), 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/UKTY72300001.
Third Class Citizen (Bobby Wolfgang Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f92ae8acf3df9bc31d5eaae866e76bb8d7d192a4113ce26027ce670d2c2f752. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/GBLFP2397905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176b2bd77a8fa36c9b502ac19f355a13078dcdb7d42d90e0e51072620ec57c12. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBLFP2395083.
Over The Threshold - Audiotree Live version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5d1d1317e4b4d9decd1a764de84041ed1587e609d20222f0670c77c38bad03. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QM99V2312305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c4cd5334b8f73439cedbc37b15aba8263143470cdf0fed6fcd667c67bd3d17. 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/GBLFP2424883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a32a6d1dc33ede84b6b1959283d38b19447e302b33555ab3fea43fdc84064f. 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/NLB932406001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a32a6d1dc33ede84b6b1959283d38b19447e302b33555ab3fea43fdc84064f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NLB932406001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f9bc105bc0e104e04e8f916e9d77572c26486e72072a503a56471c632663cd. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CA6D22200310.