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 0xde775828083764597e25414b00aae6faaaefba791076d9916b3e3ab33e2b255e. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13f10c89-0209-40e8-91c5-2b541e749bac.json and https://artists.proofprofile.net/proofs/artist/13f10c89-0209-40e8-91c5-2b541e749bac.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 0xd0f96627fbed718db73bfcb0541bb4ee816a3a817ed0b74937ead75466b1b95b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEZN82531386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f7c9fc628bd333fe839de0753079562d8ebefd1a561402e993a6fa68fb7b96. 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/DEZN82531393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7914121141d424d730cda60697b6b20039e543a7e016ad89c011b111098a74c0. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/DEZN82531441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1afadcf39766430520ca12404930ea15db78811510aced01b13d1d7f4ded5e18. 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/DEZN82531421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06492aca959f5561e0b95a9eeb83cd44b42aa74cdf101d4b278a98af4cf635e2. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/DEZN82531360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63bc066ac25aedfafc60a22aa99da3dd58142f1a9c31edeb95127342cf0299d. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/DEZN82531464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e62745222a7db1418a26d66dd537314cd164a92465b55d35c52646be2ebe743. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEZN82531415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a1dfa4a1ee46b503389ea9b56520c36c01449b975477cc3fcbbf8a7e436415. 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/DEZN82531472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a878619e98ceb59830c324abc7808ef4250ada5fa30c52e7127cc7a29a6ef87. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/DEZN82531372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5663c97bab7eb44cfbfb40d6742a926a8d6e163d8c29fc59647f791421c8d5ca. 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/DEZN82531469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e39a4ef10828dd542442c2c07d29abb6df85eeacb25e1997dde05a0e950524. 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/DEZN82531450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde22316a42e0feca6a7885ec9224ddffe30712da007f6cae3440c3c9be3f30c. 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/DEZN82531299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44a10d5991fa906472a476a14b5af5497f515ab4ad3151abe7a6be8400992a2. 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/DEZN82531433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d908702deb8182683ec66a98ac681ecfc2b67555b3a532408515330c0cea5e9. 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/DEZN82531302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4997896705e3b1ef961132a85978fb57a833e90e688e3b7775860baccb6f0af6. 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/DEZN82531334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446dd587cfaa0bde208288f1d146e0e0d32a1d760e095b2fbbdaa770a4eaf877. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T22:08:33Z), 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/DEZN82531383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222d60c8fff604a2f9d4b5710a8c2aeabe037de6dd445639a8d4e9e69e7b052c. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:08:02Z), 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/DEZN82531438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635f2b6112f7b3dd911b89d9e026b2ad46cfb556cda3e8343a7cd263f9620d6f. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:12:07Z), 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/DEZN82531392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde82dd389b77e9ff321e2b98f7c2d2ad1f254d78b9cbd531f8156db20e78aa2b. 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/DEZN82531301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a23d7a71af18d3b6bff9cc741d0fe72b95ad48fa9c164d53824f79ac6d1aea. 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/DEZN82531374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c88258f9563652225e8d0e59c1edd49bdcf24feabb41cc0b7c0c4b59cb8a91. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEZN82531350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172ff295e621d4d0efbbb097ca98be177b64d6a1d64c1336a0c2893b540e7d26. 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/DEZN82531430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0e447aa8a6d0ad9d39d9ff5a6195fb9d26d54b9818888826f18902b78f2e48. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEZN82531420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db3b9ead20fb94bbeaaedf3cf8b4bfda69eda7df30c02e9112c2a4576836f8f. 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/DEZN82531375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9acff7512ae4f49992e12c0e7a680ccd957b7eb4d79255ffe33850e5af1dd203. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/DEZN82531408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6c79f7eef075b210eacd0f269494b5ec26fbc0f6af0290727e739f9397dc40. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/DEZN82531444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e785080d6c27a9de0859657a9ea79c7d3d812a1677b9254624efe9e7c832003. 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/DEZN82531312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93885d8ce14704067d8d8395fa9fbe0fd59c50414ca53c39bb070689337952a3. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEZN82531451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a7b3716debee65610daa4d777f99cf76fdb4bb95adb54b71e34ac4dfee537f. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/DEZN82531349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6ba09c66c728bfbe9f8da907afdd76f7e5186aa8e26c9347eefeae361b1b2e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEZN82531364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1b0c009b3f022e139d20f3ab98f170df47d86a173e499dbcd45ee011d5d102. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/DEZN82531357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e90bffa83407f3450587c98e43416d78ceab5aeb1e6c80c81497a1969cff69b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEZN82531426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e88b977993eaaff4f569782f77e47a5ac49abc17fb80e901c016d8cba2c9c6. 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/DEZN82531424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82dfae8d2fa2902bf35d60fa05291fa2e36fdef73c672c1455e97242d68ed432. 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/DEZN82531306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397b51d67c53f92190c907ccc9b0761f44a9fbcab2a511e09da5b322f17d5891. 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/DEZN82531449.