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 0x13cc3fd3243fb3ace69a1147c3b127cf2070cdbec112a890f5da7a8a5fd84f5f. 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/457cf8ea-75b5-48e8-b34e-39d2f6822a5c.json and https://artists.proofprofile.net/proofs/artist/457cf8ea-75b5-48e8-b34e-39d2f6822a5c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Beer+Bait&Bars, Vol. 1: A Fishermen Mixtape
Beer+Bait &Bars, Vol. 2 (Catch Fish or Get Drunk Trying)
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 0xbac964772d20e73c15d8339975f80cd7ee19a3bfa90698aaf9777e82117e4cc0. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/TCADY1832888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99821e6c2d862822b7da3799a0232b77d4a42355a026472ab999f1a869c073e5. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/TCAER2009029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f7f63dd073d2156a7f70c0583cf5669ec156db081a5cfcd74e121b5f0bdf6b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAFE2021060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d95df318874db2e4fd223c8e97b596c113e3f7126ea707335ecf58325f27e0. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAFE2021072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f50e21578a4966bcc748d9e1afe619d84bf858b9917105406d5467bdb40a55. 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/TCAFE2021112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2818ab07087fa1abd9aab0dbf52fe8663c1b79cf979c104b8dd48a8545f8ff08. 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/TCAFE2021115.
Beer + Bait & Barz, Vol. 3 (808's & Crank Bait's)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcab2c01d9834fd6d42249645d251a660d22768db5816f28047c17081ef27e92. 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/TCAGD2285884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed17a6cdb6213d37e920ac68f895d5a39806c9769baf2009533929451fc2446. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAGC2249926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x885858153d1ecbf9ca1286e8e582923cebcdb0245d4dc9b38fa75cdaf7b91844. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TCAGD2285907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983438082f63bce0dae1631c9d63337fdedb8a19935021259818462e4ef695bb. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/TCAGD2285944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7af99c08ffe8b792da29d097b9b78fbd4933e469f4674e1bf0d833a243e57d. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/TCAGH2220390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98693439913f7e1b45652a4a7c6d0877bf09a40eabe0d3a9c83881ad9eabf313. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:09:31Z), 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/TCAGY2348900.
Beer Bait & Barz, Down Scan Jams, Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa763a3385e3056f964aa2036cd2fe18db9dce1da1cb1c5ce53ca4ef2aaf2b664. 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/QZNWV2424362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920a6be7254ae7152ae9b73e39e26f28dbe67015f0a628e7281cff5f24cc6738. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAJI2565748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ba5fef605955738008dd18b6fe8f00a1d70cecd22dc31bcdc57ac84c6a6514. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:02:38Z), 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/TCAJL2597162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6bab75959f3d606e6f96fd55a222f8314847953bdadea4286329461c24cda90. 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/QZTB92554237.
Fish Rap Legend (hosted by Dj Greg Street)