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 0x3ec180652eec65da9e76ae4e7c96b11aefc19bc4b41cd0cd7032c0f7e6ac8e9c. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/890d0123-ac13-4fdf-8677-b3eb6f1ea9ee.json and https://artists.proofprofile.net/proofs/artist/890d0123-ac13-4fdf-8677-b3eb6f1ea9ee.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 0x66ecff473f27826f7aa015ae16bfb47c747a9222de376724c2a1c31aebf56a64. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:15:52Z), 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/US3DF1800300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8061db4e2e69dcb5c9de0d56041674de00d85d454c02dbf708c0e36b7368ab47. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:16:06Z), 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/US3DF1720227.
Live Last Night: Live from the Double Wide in Dallas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77cfe81ca75ff7fc54d6a664aa85d536ed278c343bf44e20e267bc0649719e2. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/USHM82031625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb903fbdd15ae83bb342c59be60241541287f447cd2d228de2ebb8c02c65197c4. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/USHM82031626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802e66e3133ebf1f59d224b2884fec4a98b78ce42d9212361e1cc9cf033bc187. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USHM82031627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06d82148d95042dad6b6f6522732500f4e8441ff1cfba645143a9d16e4160cb. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/USHM82031630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27dbac096f3f1d5f231cc04254af963b91cd6ec8651104956189663f4ab9432f. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USHM82031631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f47d942e6690ab0d4af5c2a5be8b475c250e37b0a47c7b1a0f3ef486d9ed382. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:46:08Z), 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/USHM82031632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a678b277276e2c10896bdc312250d452bb15c5d2dbc7b62ad0576090a873185. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/USCGH2118199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf8558b95c853c79ae6bd43975c744fe6eed87f0a2f99df65319849a9c1dc2e. 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/USL4R2121126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7785c5e9239c3cf00cea3212ab844b06abf359b7c974445b5c7a5f39c6515f54. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USL4R2121131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d64e7ef43a75f647b0241ce60431f3b07f75726d4362a4a250abc0ce9e3451d. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:52:27Z), 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/USL4R2121132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d571be8b30331e4c03bafab3bec26a2f06c6830635b6cb0444220add8c34a4e. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USL4R2121133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac7ba3ecf347cab40b74f6a1a20174f17700bb1b76a2a8e13e6b974369ef1c1. 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/USL4R2121134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6347471f43f3e2f60ce7558943bc20067308c122287893c4a2d5aeba85e456b. Chain 2 (Bitcoin): anchored in block 957723 (2026-07-12T15:34:17Z), 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/USL4R2121135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2c9b7481359a2073b658b240e2adf2e3b4bcef1564e96a57c02205314193ba. 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/USL4R2121137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172a439005f4032712c864f1c579a9d967df529f54acb939aeb4ecb91c2e87bb. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:22:55Z), 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/USL4R2121138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d75e48c53bfeac5f9c69977efa3da2c816d2b639a56f1c07eaab5bd2cafa5f. 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/USL4R2315398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abb26284d16d81922857c4e459020ad4b9b77aa305e391b4daed8f90ac2b28a. 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/USCGH2467493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5c6ab2aed28765e7519b4567a95082c91e3fc68c6a2d48e4551160008c2022. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:17:44Z), 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/USCGJ2481744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dcf88cc364365e1736ea030180cda37dd9840ef89a83f36fa83e7c22cb59886. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/USCGJ2481745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a3111a70b63e97e8754ccaa726bef96919f83dbf5fd2d5b9be0d0445a3b053. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:43:52Z), 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/USCGJ2481746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe788eda4efc10bd514cc2039543e144e1781f2f6a09e13a3dcb88babd49036a4. 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/USCGJ2481747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e1b07fd4c47278393d49352a8b078545f68e76bba62f8c9e97f4ad6b1fe0f7. 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/USCGJ2481748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6070140e37f240a66e41b680982b9bb7ecca58f861696d5bd0ecc45b41f03e7. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USCGJ2481749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad467815042527d985a3b09c48dd06ffce43e1830a2225c29019415b9af783e. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:47:49Z), 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/USCGJ2481750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3ed7f057b6de019f27caa6c2fc2f8f10be498d9a61b40578f0131b677de4b6. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/USCGJ2481751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201c060f234503c36ff3288f5d38bc387892678e1f355f26a2154275113ead13. 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/USCGJ2481752.