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 0x2f3b1e804a3d5b912ab7befd0ad217fc48d17d8515d3e2fac9e8ea02aebd1e4d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b784b20-631a-4715-9316-57d85b6f3a6a.json and https://artists.proofprofile.net/proofs/artist/7b784b20-631a-4715-9316-57d85b6f3a6a.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 0x8b5e9de51c1a4cd5785f45508ffcc163a35b576b2e2b51eee95d69dae51dc7e2. 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/FR10S1900591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296e1e1ead671872518ea0d1231ff3af2dd464f29fe6569ab1291153201b4174. 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/FR96X1910380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13a6eb5be0b86c36320dde16504fb1cb9babcac42cec38c9d49f76305d4d617. Chain 2 (Bitcoin): anchored in block 957842 (2026-07-13T10:08:30Z), 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/FR96X1910382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5401b15009a8330894725afadf628111cfc0bfba1b3faabb90c752431dd2098d. 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/FR96X1910385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f4add2fdd51fbeba86b975718b6420169d8101b26acedefdcf650c3f15886b. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/FR96X1910386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd1cd31fc714c629a58f2f3b582354e818e694b7ac27cff6a3721a01acf217e. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:52:11Z), 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/FR96X1910388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de5c536680e13abe48d68306866409956c86fb1a7b9850d27430fd7896d6ba8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/IL1031950648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5e5666c636c4a03dacfce49e21b3b693a31eaea30056a12d7e1f4ec0e65c4d. 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/FRX202041350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052ac366b6be54f85bcc66a6d9c546042f2e910069cce264a277780cd7fd3dcd. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FR26V2086265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5f86c874d3683a4554a93bb85dcd17647c5590ede552f9858f66da0158e21d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DGA0H2413045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a041adfad9ff3fb33d43fca08c348bc4ed69413f93877495df1f0c3752f07fd. 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/DGA0H2413046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe7b4dc040c5b9f277fbc7f3220dcca4bd8a361bd306832ddfaec86e6b64bd5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DGA0H2413047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4dd70ff12d53dc7b37558c8e18cb0871cade0510fdd4a9438fb9f63cca7f57. 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/DGA0H2413048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ff8e0200b46e728a65a0c952dfd47ae40b78039986b753373bb1210a80a71d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DGA092361984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d251308685730ac535bf9b8c3d9acdb970e6026d2299ded79e54d6c7a7351d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DGA0H2413049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd03f2e98e755c6b3caa2d65bbf9ddbdcc39f055748505cb10228bae19e80e3. 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/DGA0H2413051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb5d02f77aa285b2f202fe6e91a3ead6b2643803314c49091b4b6c49e2f09ea. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DGA0H2413052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d89c0cfccd1dc6a31dfc1cc4b452e683711c345eb09a04e2729371ed344c0d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DGA0H2413053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0675a0501a0e24edd70e7d8bd51dec828cf3bd9092dc32e75446f2dd824c0c37. 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/DGA0H2413054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc0af10fad01700b59344deb17c737e8fcd062c691a013900879d4cbdb4756f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DGA0H2413056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7a2f042f7d38edfdc0a38f8f4c945fcdea3660ee992efa15585ab76ba688d6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR26V2006287.