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 0xf2c2b41c4470fd27eb989cd0cb3252bf58749a0fb5ff7e77dae4e8be58f06dfe. 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/cfe63abf-952b-46db-9bc1-d9bc35b4299f.json and https://artists.proofprofile.net/proofs/artist/cfe63abf-952b-46db-9bc1-d9bc35b4299f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Because it's human - Live at GEMINI Theater Tokyo 2022
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 0x5904cd186e52c65c3b341ee513e77b35ec77667c165b4bd788d21d35e769d062. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:12:34Z), 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/TCJPX2372746.
Look down, now - Live at GEMINI Theater Tokyo 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91731118b86d0a630de4b312b9e086af176875cfa109dc47d9961cb50d70db01. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCJPX2372756.
Burn my throat - Live at GEMINI Theater Tokyo 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3da88e0de7c613306d429bc07798d0945d0a55eee2fcdf124d7cf19e7904fa. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/TCJPX2372790.
Rendezvous with brandy - Live at GEMINI Theater Tokyo 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2e84785ca9ab503dd2c177d85e5a0bb80ef3c6c16777597c1e9cdc5106650f. 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/TCJPX2372791.
Waltz - Live at GEMINI Theater Tokyo 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25bb76154725a32cf5afbe64f1b8064907359ff18c284473d13cb733e715e90e. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/TCJPX2397094.
I know you are doing your best - Live at GEMINI Theater Tokyo 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5a7f8b36bcc1e18770925dc95199a99da1f22b965ac0e1e6e094704629b7a9. 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/TCJPX2397099.
Change your rifles to guitar - Live at GEMINI Theater Tokyo 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3055b4aec48eed6cfaf2725d3c51312ed9669815da476a54684b3e8dcdeaaa. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/TCJPX2397117.
Anonymous - Live at GEMINI Theater Tokyo 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c8c063b30c778963adf7fc3e03d09b85cc2e7839a1ebde93fad1f42aa2e2fd. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T03:54:18Z), 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/TCJPX2397127.
Mother - Live at GEMINI Theater Tokyo 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2c10e47cb762c25f98e2e1ab8cd013161263e81a494b1a412707c9274282a6. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:04:01Z), 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/TCJPX2397130.
Rainbow bridge - Live at GEMINI Theater Tokyo 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c5bc666059d4ee46c96990eb9b4ab9a5cca276c91fb61eb0ee51d1c77c0e55. 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/TCJPX2397153.
Crow - Live at GEMINI Theater Tokyo 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa104aa7375fe27d5b97bbd220becbe5dd15b8ce6b75e44c574a3e3c4ec4b02bf. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCJPX2397160.
Everyone is beginner in life - Live at GEMINI Theater Tokyo 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbfdd9044d2fcfb8c3a5534c5763f34d68e5158f2501053ccbe36fc8d33635a. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:28:22Z), 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/TCJPX2397208.
Good luck - Live at GEMINI Theater Tokyo 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d63b3b1e9d991862bf740e4424c654859475540c7cb349058e26a1d9ced367. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:43:03Z), 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/TCJPX2397210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fed55155e445af404cb125072fd52365335509937e356baa2931fc25b07dac. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:44:19Z), 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/TCJPA2444057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37f5f4c58b8719b47383ec732579d995d43589e2f8ddbba41be42dfa1ac52c1. 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/JP92J2400859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9294a5285b478da2757e869f28e3379a5d9651debf658ecdc583f41008fcdd16. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:30:55Z), 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/JP92J2400862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd380a8068cb2fb1ee9f221daaeed07d56dd9d3a53005009f792fc5970b1ef2. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JP92J2400865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc51b02cece7ba6444c727046a5957335be69aea139bbbea80dad4e36649fba. 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/JP92J2400866.