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 0xadbaad14e786890e1c0bb35ce34f1e5b4cd6605617a599e1ebd77e69dbe06765. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04b0f7b2-470d-435d-ac89-bc5dd023aa5b.json and https://artists.proofprofile.net/proofs/artist/04b0f7b2-470d-435d-ac89-bc5dd023aa5b.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 0x688575658e51bab83f13169a79990a5782dbea357ccb636fbcf036f01310ae83. 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/DEM091200116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d57c4d2e02497b856c38c234a5bd87dab6bd9682186879805522a078db94bf5. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/DEBE71200071.
Compost Black Label #119 (Daniel Bortz Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007ad745b606c2f6b65ea71d66338449369137cb4d319a9fc3b2d3121da66de6. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/DESH41500137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a1b37d7c46a79c6a657a21c55b40dc12e56709e9a20718dfe0e117bf929aeb. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DEY471722103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd51a2053049f945c7de42de787f0fd7235150b403059f77385c1b2857fddfd3. 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/DEY471722852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d4ec34e0eeace51b1f2c2aabe8927325105c2b1c7ed9f4714928385f06b9879. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/DEY471722853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c0610ff9f2bab3764c65f2adecd81452e9c803f23f6885e4ba55c0d84a77c0. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DEY471722111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f6bc735647c49a616284813afdd3895d815ded4f4f9d7fa70c597d5bc6c0c6. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/DEMW61800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf982a1be6525ded89009209a9c49550c1613d29407aa2b3a173321f5f2ec10. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEMW61800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe9f0946436ae18dcf8f3d8751d7b80c3b9828de4603f0765f81e1692091969. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:24:48Z), 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/DEMW61800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bcf0c8aba6b032c04190ff4c8c4ae875cd684c89a6a2375957033927f058253. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEMW61800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e7855c96da683223834688f565ef458c6168607671033a2f3bac3ea3ae998f. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/DEMW61800025.
Saraswati (Mountiri Version / Vril's Octagon Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d608391600fbd4bf858734a7f9569d55d992756102ae45d2d611cae59f1941f. 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/DECL11900958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdcbb1233a13aaabcd020abd381efb3f007ab4cfd9748f703d8be4ddbeaee03a. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/DEY471983067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6425594c12fb18688e9438abfa75adb5fef9278d4b1231b4eb711d064eedd0d. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:07:41Z), 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/FR85U2000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25f0a86d2abed10292e3506c89dd55046f952d32dbb2019b3db45031600110f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DEY472171062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2617533149a2292b955fcb7054cb717afcf646481a815c8cedfea9474dcddb20. 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/DGA072243040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae25b69f357dd633f369ff91e8ae4f751f9b2964734a2cce8cfa9504a36cea4. 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/DEY472374660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf463bc1ff6d9de70b4a0543854052967253be93e9a08c707bc8023068bff42cd. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:05:00Z), 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/GRSCM2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a2df601d449ae956751f464e38e2ebfef41c4b1ba77a52dbb905baf1c32707. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DGA052439448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365b752539313ea58dacf126bb430da5abc59f7c8bf0bab55f9eb5f47e0f2a93. 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/DGA0S2442813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429384bd8ec3c87bdddfe274aa566e5261f0dd70ffdc9b73b1b165f73ffdf160. 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/ES8741824110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717a89085a8ae09c58a7fff632c9bf268a15331510c496bca4e8cd96320e96c5. 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/FR85U2000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc584cecd7aee49c32f045306b4472d97e43bda9f67cf51a2ad30521b40a0bc1e. 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/DEY472084459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8aea75595a6f0fd909acc2a90e6bc4be96ccac7c1096aee95360cf1f55ea99. 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/FR85U2000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19a8165311293473684871d8327688dc3a69cfe88a8675368d8a56c347b5763. 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/DEY471982059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674eeba1c6299bbe9f4cd07738ef0d1c4ac63d6c21586a15a6ee32b28784a362. 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/FR85U2000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f541dbda4dcb7f176389e2b756381570e867351d0764f38a5a9ec56e602897. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/DEBE72000083.