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 0x0088fa9d3861a94cd625f8bff9ca375a8961826b612a7636d5d5272dd80244fa. 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/9bca4a14-8f6d-444e-9775-9d18289a138e.json and https://artists.proofprofile.net/proofs/artist/9bca4a14-8f6d-444e-9775-9d18289a138e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fingertips That Would Dare To Paint Ghosts On Dirt
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 0x81cf1e9d5fbe87108d20b209c70e2a3f953b84ab8f578fa1992f9b93b953315c. 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/QMQ9M1400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc077f0e7f31c0364f246bab39fa91c0e5f140ab36300de74f7cf12b55dc9e349. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QMQ9M1200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe768625c0447c07a48e671dd54c1604e6c1d14ad1e8a18ec66e340741bf9bb86. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QMQ9M1200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677fef16683c0ea9efc4f1d7fe8c930a86fc87042194f23b8f4d1de4706cd17e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:45:34Z), 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/QMQ9M1200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd62a9579fae4cd33cf1d1324733effb2731f4f763358ce0c9480d9bde953972. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:54:44Z), 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/QMQ9M1200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a023489a5ad6eda32b8746686e92692a2ccd433ee494384ee4a928fefc0ec08. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QMQ9M1400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83dc22e49cd4b203c76659b5cbf657f893f0a90d9efc7f8a3d0b81c56ea7940c. 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/QMQ9M1400056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9f7bc2a0af3079d76b2a1bac1a1a6266c617af5b46244533bec843901e941a. 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/QMQ9M1400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3bbc70e17a14e7352b3dc9f927c6acdf13855d2c884bd12101d25bbbd87b51d. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/QMQ9M1400059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768e88ee5e59ce04eabf2ba10ab42f08b5fdbd7670ab3b180aa39618a654fcf2. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QMQ9M1500083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc999a1f16b091f9f9500b1db67b93f04713232dc5ffa36fb2f2febfdb2df24a2. 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/QMQ9M1500084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed662ef49021ad836dbb353b7a0ab7a7979e097aac30695b9d7e5dd8e8d7319d. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/QMQ9M1600099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ba547a533f17deb4856636f41633ff61f72b6070148884175df856f35c935b. 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/QMQ9M1600109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2445bf442096268f5ddcf097ed8045db5458f8cad8c1703a2f44becff302f1. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:59:10Z), 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/QMQ9M1700130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91c4b8b236e38f769a58a2597f64852379be005af820baad05d688bc4b5fb22. 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/QMQ9M1700131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4532d81dd2752e1315e707945308efa68c3cac694ba39761a141b8b88dfde98. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:05:35Z), 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/QMQ9M1700132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55fb32e3c9b306df811cc60e8c6849f4170e99401b8024c14aa4bbe757aa0b8a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QMQ9M1700135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d307863585959a890207c6261b6867bda7527b11982879509c4db3b7d655999. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QMQ9M1700133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81912000e22d020fd32a38e30176f18a46243a8ca4d1af0ab5276e3b39285bd8. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QMQ9M1900138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2445bf442096268f5ddcf097ed8045db5458f8cad8c1703a2f44becff302f1. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QMQ9M1700130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a884d0eb1a637bc270ef1002fcc5e66db47de0d446e47dae79ac922057fa1d8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QMQ9M2100158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fbf2929e4837b32275cc3393667b38632bf644b39248fca662a1765767b995c. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:47:29Z), 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/QMQ9M2200162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0984b83a830dedaa3c9957ca02be84ed2ed1a0664ad8bd521382cac2aba7b148. 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/QMQ9M2200163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2a1f5c41f93b2fefd033236d391481cf4c86858ca68d01548af48e34165deb. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:22:58Z), 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/QMQ9M2200164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5539c76e10189adc8887e433643931cb72177a400570363c27ce02ec6c0695. 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/QMQ9M2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d7969680619da1e0a1b7d8fb729e1182c7da168e6b97697f6de1b488989b4a. 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/QMQ9M2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f85a37fa81e82ac8dad42390ab63c788f71ec66573ebfc4a11f54191d30513a. 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/QMQ9M2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9ef2997ce2639f9badbc890f7b3bf865e79f55ca5998fb86a0856e0daf54df. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QMQ9M2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdafb0e050aedda2f9bb7ddb4aeb88e5abe746ca17cc9ba3064dd3e5c5cef6a6a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:01:34Z), 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/QMQ9M2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a0e0a1783926432213e6ea711f6acb83869ed835cfcd558bff5dd3ecce2862. 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/QMQ9M2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b1303598e77c27c1222a79236c79900f816f4879a3831a141dd5ee2e64281a. 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/QMQ9M2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa661d2e1ea61190deb0c1fd293f2b0a60e6ccb146d723c601076c50cb13690f1. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QMQ9M2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04b756f56b2f4da230632973fc4e716c2a0a49dee023d2238fed2372ea07bc8. 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/QMQ9M2500002.