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 0xaa02e58156be494fed828b36c4772b3ec440c947f8d5ffbc202df65a688dc862. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e1f968d-267b-4766-be04-bbbac672eda2.json and https://artists.proofprofile.net/proofs/artist/2e1f968d-267b-4766-be04-bbbac672eda2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dry Bar Comedy Presents Drew Allen: Out of Ideas
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 0xea37d11905b40121a64dec18750f6e6c7515a32700473e738f8058412f7e5c69. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZHNB1922558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c2c2b774135e3d08e8405150eb69384da8c8a956cecd34ace12d6060b7636d. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZHNB1922559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160c72804645081b7251530edcf89d74662152114d3c4bfe01093dfa54352ef2. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZHNB1922560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3fe07392efe73c7006d802d4f71252de1b9effad0314bc934cfd7533e7d280. 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/QZHNB1922561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26cd3ce9dd86166bf50298d3bc9acfc87f456dab0fb723d030e05b0d7cc2bc9. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZHNB1922562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03120371fe16379b426b852caa9f15bf88ffca1550b2fe1fd7cce6f4f86904e5. 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/QZHNB1922563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9930fd47876fe8bf5d3c3f9564a2515aa1dfd491183406a81efaa71a26471f. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:55:08Z), 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/QZHNB1922564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fce8013a81d62f2e551dd77bae18b98369ce09e248e7c03525e2f9cf0f259e4. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZHNB1922565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3a4a67bfe8185ecaeb6a68e4296fd418fa307a731aa3643c2cbe660ba95208. 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/QZHNB1922566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7091114190266046e0e897a568a70b651b3756358d250691d2a07c2c585f368a. 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/QZHNB1922567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3716250c91c5bded4a812fb8ebafb2c05144ba3bc20bc9d42d0855a154847e8a. 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/QZHNB1922568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cda364e4f4fac26b3bc60c380d33745931a845a5fcb44179ea9b69a567664bd. 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/QZHNB1922569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e62c9c57a0438e894092c9a44c5cca8e61966cb2fe9ffb05ecc622ed4000af4. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/QZHNB1922570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6e94a1b4968fbceff0b5c4bfbf336639763092c871bebac315ebdeea2420d9. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/QZHNB1922571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1348069404f9bd49dbf09066939bc32f933a37c9112357cb9f9fa89499f15c. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZHNB1922572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c9ebc967cfc484aaeeb57ee309c8e04aaf6a0516acaae1bebb213eb4a5b728. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZHNB1922573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6c7e4ee5d6dbc4421397ebcfc6d881f441004943e8d24d79d5b043b0e27538. 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/QZHNB1922574.