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 0x50c9b7608dbf7babc8275e3a5ce429b77ab1098fa579688fba9a0c9c455997a0. 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/25dfd843-09b8-4eb4-a6cb-58dba85671ef.json and https://artists.proofprofile.net/proofs/artist/25dfd843-09b8-4eb4-a6cb-58dba85671ef.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 0x95b72b5dfeca03de7fc87f8f3030f80660664a27db07dac05a23f3661acdcde8. 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/QZFYX2420680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac81ac3fbcf504d6b08dd5f057b51cd26eaa35478308e87b8c431f24e482c8a4. 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/QZFYX2420682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf179e463a1fe6eac388bc3a6ac972d247c734a58b41703dc41c4050c04726748. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZFZ42340739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c99acbfef2d28033c2342f4c72f0ad566bfb0bf1f9a69e9871ca3d2ee2c905. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USSM12300383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557f100fddab7d91677780f04df32d418d16777cd00a175f20d30adb58570889. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZES92321634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9add98116dc578e4692ce9aeb1b3e1eb009d5480c33b373ee026032985ff7e63. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZES92321635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90e428403520a2ba8fa3f52fcc2b6964da050f58efe259d30a7cda03974a42f. 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/QZES92321639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac23576903d3041c6beaff71110b51a24823d179c225d071faeaf2891b0f3163. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZHNC2304094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269220add54ac80ac30c2ea17949d7d3ef2b4335a38439deae4494948b928104. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:56:50Z), 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/QZHNC2304096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3050768ca84b1a5262921822b4b46f1cc3a0835462366be98200b1439da2cfc9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZHNC2304098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8030b1ffdcf5f1becfc25c3744277900a6d7ffba6c16f5a739f730706d8e2f7c. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:26:43Z), 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/QZK6K2337540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e31164eae1005d9a9c2a45b8cf8d6f102fdf5dbb21e2cbd7cf818d485695ccb. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:04:46Z), 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/QZK6H2374036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b3000300bcbd416670f2c50bf15cd9ad1bfa19eb0d3fd7c204d6460e7eba7f. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZMER2336747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c68685dd13bce2250d7cd7a40bcdc345ae59dca1e6199c45ca3520ff9d55c5. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZMER2336748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ef371d3dab091eb89d6440429ee24bebd38a0f6b84a78664c74f91662c927b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZMER2336751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf616d352484ea2dddf907d0a272b17bb6fc566b1a6080a705295a5d3b8c9801b. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZTAS2322250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba26156bdc8d05b5715def2644d73f84aab53f68c60ae6e52266359eb7fbcb7. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZTAW2369813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6beed362ae6a22a429aa4ee2192e16e42b3ee6241ebb3937f3f7d5c0a0305e79. 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/QZTBB2320132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb887180fbbf5c236159619a7972ca3931f58dba13f71677ba2873dcedfdfa0. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZSYP2484769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19fefb4cc75327bdf00e265d82efda85857e85fd686d255ba79496344b650f0. 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/QZQAY2455864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21b87d2223267a106f9b167f208e8aaaaf955eccbe3515f1616e9cd10f31197. 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/QZS7J2416519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6930409138bf6b8bc8336041eb9e7b3e41ef8cb2381e20bf6045d8fb50af06. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZS7J2457711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628fe2fe45860fc1651bec91929db81b32a8ab6262467110a4cf16eab8478ab7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZS7J2444682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4da6b1b31ac90e35ec2bdb1c73f9bc62d312032a04b7f78e30fc4b4a7c85a56. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/QZS7J2480818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a6537bf0fa170cb37345b8ed4b52a1a379ff7f6f7163698bd2606ca1e98ce0. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/QZS7J2435535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871d738c01e7712e67e18848e14c9884f7991627954ea581c2185d81bce3e1fb. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZSYP2455155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ebdbfae38a0a38083f3452a6e56948fd09dd648bbf3fcb97429e2445b08135. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZSYP2441150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd6a27601e53e501780b30079083d71c07ea3c532ee61c321a78e66904f7da9. 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/QZSYP2404536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb736119729b80b558c2bc306d50a15e252c33b5a3415268b6f3ca81b202851. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZSYP2490827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aca55ae651308680add6dc68682410d86ff97f8ce8dff25572d3587b49d8bcb. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZS7J2481472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaccc0f95ff30b82980059bf6d192fdc0bd23735c051755896e3cfc0c47175716. 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/QZS7J2426376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132722098a3f063eec4ff3c82ec33d8ac75e317535c777271875f4924f865138. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:28:32Z), 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/QZS7J2485402.
Bad Bitty (Genius Open Mic - Live Performance)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334d3ba4a50c8eef5373c2f4596b4b925d9fd8fb1c84a19e6085fd89d0d78282. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:55:51Z), 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/QZS7J2442514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298623535945bc5545ea633c706938a7c2d2fd27eaf49f9adf4618dc8a75372d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUYG1542647.