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 0xff7ac1a908fd4b570a928b4b53065f42826a54ca373e754789c23d807ffdcb6c. 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/2be90cb5-95d2-4b63-9691-3e0a617c3db6.json and https://artists.proofprofile.net/proofs/artist/2be90cb5-95d2-4b63-9691-3e0a617c3db6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
...and Justice for Y'all (2009 Remastered)
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 0xe093ccee6f9101eae681ae9ff9d0d6f936d157c4b697aea00525741aed9b6103. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/FR33T1332201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271da577fd485e870c5ee02d906d809b5a629a87aef0606868e060ce61041e63. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/FR33T1332202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad5fcfb94c95c518ad562e5ea31b352ebbbe22f14fc2b48ae5de3cb95d3d9c7. 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/FR33T1332204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb83e9ea912edb7e550293a042e4f1d92de81c98d15cfeab9c92939631412d2f. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/FR33T1332205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94227f96cf031da16f891ebc5be3d60793268e7d2944130b9d282d9b5927cf14. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/FR33T1332207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb52eb536a945974ef98be4d11763f04a98869e0376bd6a87b8acc176881687. 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/FR33T1332208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a31060960325da64a3d41de13af17d7aad1b58864ec9eab29f76169543a0c76. 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/FR33T1332209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71132046700153ec133f8fcb6bcc03b055209849a0aafa91082b4d4b9f79d7ba. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/FR33T1332210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe253a318ec4483601d686703b8edd33813537573bcd494ae148c0de279af5652. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FR33T1332309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10d2bf53fcaba3769ca7c212c566678807197da5894b95b1075f5eab096f2e2. 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/FR33T1332401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe93f53bbb0a992e876316eac2567e78edefc07a9698caa29c5fa5f50dfea58. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/FR33T1332409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574fdf16b6540e214950a6affa877a12df85732754fb0dfa125feed5de215f88. 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/FR33T1332410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a6fffd654205fce64a69a86bf764f3fdb5952f50062dc7f26fe847a71688de. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FR33T1332105.
Southern Cross - Crosby, Stills and Nash
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349d805e1f798675878ea91437a721b6e498a3d8dc79a1442b9adc2bc40294bc. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/FR33T1332108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b3c40e53e6b37b53f2cdd57cb15c5b3b7da6193a167e796f929e2c3861aee2. 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/FR33T1332109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12166915c4c61e4d46598adfc494ab53888c18ebcde7387689131ff86f84cd1e. 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/FR33T1332110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154ede4e3963a7887cd9be919015d0807d89dcc15ef6197e06502cab2efa661d. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/FR33T1535501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41afd4ab5f3f7009cf2f6253ddb974e1e0128b9452bc8af5e2261760e351093a. 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/FR33T1535505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb54e30947b88313fa7100ff6d8d4cb69cafe6ba2c0813f4d44c9658dc5264e. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/FR33T1535506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd101a45bd48c49850d9ae81c6addf710a36bc078836444617d444aa8b0b185b. 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/FR33T1535508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2787d6e267c8046aebe375711fae16ac9d814cf962b3b5e803231207cfc744. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR33T1535509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9404634ffec4c700ec97edc2f872494570b6b87b1a3b040f38d7c236f2ea882. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USZPA0700032.