1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x67d51409f85fece3c3dd9385258f8b86bd450d10da8556d8f48b396555ce5a0c. 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/cca44de8-9f63-4347-bae7-0c6f29e8c88a.json and https://artists.proofprofile.net/proofs/artist/cca44de8-9f63-4347-bae7-0c6f29e8c88a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Live at Austin City Limits Music Festival 2006: Ghostland Observatory
Live at Lollapalooza 2007: Ghostland Observatory
Live at Austin City Limits Music Festival 2007: Ghostland Observatory
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 → block OTSBitcoinBlock must exist at that height 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 0xc2da5fd9ef32a0a788c4133b34a8dd9b72377a4ee9c331ff681b019b46c2d735. 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/USME31001177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6380a8e04056943dc3f64dd36637e341f9aaba2a87e2445dfdf7c8ec371d8f85. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:40:55Z), 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/USME31001179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ac108009768e40eeba16eaa723452a5347e730817bba43ce34c2a4e7308dfe. 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/USME31001180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6faaa0cff42c95bf8d00dfc20995e16521c5a904ac4abaad9a2218455f31ba. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USME31001181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafaa69f4baccb5f243b91988faf3c04c36fc49a2ccaa008aab2d09bd1e9c082e. 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/USME31001163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c2ef5bd244e32dec4923c8bf4d2e38d44cdaba7d15873a24025cd8964eb0c9. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USME31001164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b39fd220373eb0385061c54066b98f80b9166d10cadef777e5b0a65bbaf1bd7. 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/USME31001153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2271bb8d2cafeb93adaa179ef9b522f80737d24692c6fa3734782127f55f7b6. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:25:22Z), 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/USME31001154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1459d4a665f00cabc347699840899054d075dead16669987ffdaaf42698e46. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USME31001155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0874043e480993fd1ec4eb8aff60b57265d7a49965595f76a5e258757fba8c5f. 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/USME31001157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2913efc332d83a38b04cf8b853d276a5634f33b4911afd33851c539ff6c218. 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/USME31001184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300f03fd272a88aeb4d80e7abe3d034fd839a87f8f780ea5e1f94bfad48af88c. 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/USME31001186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a545447aaa284268b052efae7db09e9bb3723280694b5c576918a960f62c43b. 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/USME31001188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6901950135065c4bf7c6c8ef11745e7ee938469ce400a35b61e6a5570883aa9c. 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/USME31001189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ae01614af1c0af0cf73b92550428b6986942c921e90dd91e811b6bb8c15f7c. 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/USME31001191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67a4198affd3da98d3b71a99d26a80d53feb066f69351cc11df7060b83bdde7. 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/USME31500795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3725749e5c706b5ed669dd89718a50efd82815fb00754f5c75639960dc19f5f. 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/USME31500797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908a480c4a00318bc32ba3f1e39a2f0630f38f97ba99951762d2744d2ed51f6d. 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/USME31800314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113f48b87c1de439d745736a4389a3826f0e32e352444fcddf7b16fffb4714ff. 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/USME31800315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a12e981e298a91b1084a54bf93934b30b1fb57b2de0d60d2d70cf8d60078b0. 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/USME31800316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d1d7dacd61b9bf5a481fafa1bbe7ceafc95c15455326ab5554c46c1257dce1. 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/USME31800319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b31be6b0822c64644a8a57b9be46a43a242ea60899b680a278c237e078c650f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:07:13Z), 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/USME31800321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8239d732363fe9fd64209c74849049e8409ae953e70fec8978978552ebc227. 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/USME31901030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b5ab6f207980e5d7c98404cceac8ad77640b887498df5967fede1ac44704af. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USME31901031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46287fa2a9cf051e6047f543ec930e50ea65da6c5adf62069e862a8f64ebe48b. 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/USME31901032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4dfa9f875d71f79820025ae8e39e135566e662fe55ba540622359c86af7ccb. 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/USME32100357.