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 0xdb84a0835e04b8b28ab718ddcb8fe9d111914885cb61c47c9694e87dee24f158. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6768caad-a503-480b-bac3-9db803000e5e.json and https://artists.proofprofile.net/proofs/artist/6768caad-a503-480b-bac3-9db803000e5e.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 0x92dceddde66295011c7a368c4ae73fb6b259fce9c6d7a2ca736bde4c70b4acfe. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZS652192528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234cd1620262ffa5c12f36fbed67281fb801d95ce1e8131a7e495f88ec3aa47c. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QZMHN2290375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4287ba655b589b4641e278574d856fc4c274f1e9a07e202c786c35888d6c27cd. 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/QZS632283100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae677441903f10edd989e2acff1a4a79b31fd9567ac061d592a391d2907040cb. 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/QZS662250711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f3ff6d4d65f5588e0fd61f5021f30e7f1894be31ae7ff27621c8e13518a327. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZMHK2280724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafdd8a6e5ac695af71a0bce683badcb33fcf45e1fb7a71d73b601e2433a1686b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T12:15:19Z), 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/QZDA82347502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ea668f5970dc9aca5fc295cd84a1e5baa24a23c911444ad6279ae7068d1dda. 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/QZHN32365618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9280b2e56391581ad028b951af973a8706348397fb9568204a5b5d33c1a31b4d. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:37:23Z), 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/QZDA82346446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfd0141683938d58d3164b1da4605d09ed08f6d0b9946060443d0a57bf803fd. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZK6Q2353326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d4cbd121f3a0582c61366e0a1c346d989fd2d6188dfe1fffcb01d79d58eed98. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:47:19Z), 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/QZPLS2314679.
BLACK TAR TERIYAKI BACON WRAPPED CHICKEN
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a5c21ca60ed62b212a95f189b42593ceb497b1ba0b322d0d6b54dbd8204030. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZS672184760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2749aaa51c65b94364072a3712539051bb4ebf1e1b9aee812bbfb1ec422af2b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZHNA2329050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dede175b7b29ab3a02e8f179f89b31b8b708c86d018ea250098848d12bbfac3. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/QZHN52337552.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34196508d977ad2af12479836416ea2656ed7edb461012cff9a8881e08e00885. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZHN52337553.