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 0xfec33c02b66cee13c8c51b7b3346c36addd0cbd3479b67b991d368d7ce6cf131. 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/e3cc9ca3-8f55-4c53-8ead-a06d2db6cb31.json and https://artists.proofprofile.net/proofs/artist/e3cc9ca3-8f55-4c53-8ead-a06d2db6cb31.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 0x0d07b565de63edfb52e67f746fde58ec893a7ccab8d888aa220da21a82aaf938. 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/TR0390801112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb603f8848dfb60682d37e29cb484b186772a13fb5033f2033e5c4a415ae1648. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TR0390801115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15820cc427a937b587f5b1f8f8bc41c748ad989f1b430e7f5a38514d2b73ead. 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/TR0390801117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f79b3412082837f58e4ccada4f185dc96486cded933cd19217176ca8406010b. 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/TR0390801121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64cf05a9826b0b67e98d571da22419466342a33432840a7851645c3d738e64f6. 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/TRADS1400085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ce77b246ad6b6b60f55daf5a617e65b71b545250da489063f1e06d57d6a23f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TRADS1400086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98791f5878ef8634412584207cb373e8c425b7bf3a29c123e66928e91a0e7c3c. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:18:50Z), 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/TRADS1400081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bd8a556f1a8406434937cc94ccb9a269a2d13bef5f2086c0854c0886a96053. 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/TR2081802937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b228c22f0402413f502f10df71edefaae4e50e55d0244352bc6add7d59e7188. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/TR2081802945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692f2e56e64ea9f92308ef9c0ff36e531e437adf0f2c962d0d13fe8fac2210b7. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:52:57Z), 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/TR2081802944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3b87c2d6869b144b0fa289983a23e7c8269161e74a96210729db19ef9cd4f7. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TR2081903074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333ff5673cee3d761071d5a75911f2a73f681ef8f1303e0536f36a2126700cda. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/TR2081802938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb2b72d544cb6fc69514132d48934bd9364c1b4677d43275d7b0952db426c0f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TR2081802941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418c59b8ad5f3f203819155fbfa72376ecb493340f3c7ef1bbdd3597d1876939. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TR2081802943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715a550c26515557be975e2a788b0d1cd15c0ca17e07399f31252f3bde8d8560. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/TR2082105035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599be228330f512ab868129367de21b756b25799bd615a3cae8ac9a867efd955. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/FRX762583506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891d5b10c721262e0c0b0cb1fb47d8bdcffccc34b6e1dfa239231035b51c3cd1. 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/FRX762583507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a6f0c8d47460e45dd05e72adc92516114d46ca5d08b4176fcc09207544d8b2. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FRX762583508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc086b0fabc2bb2345aae6b666e0faa2909dbeac5f89e1eea49ec597b4f69970d. 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/FRX762583511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90efe3b3eccf9337d9173427dc102c4e116180d3ef8658c0bca298926ae3a984. 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/FRX762583517.