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 0xc72ffb4f3bf234dfcc689a14ae62ec7b86306a4fa5aa8694873cdd18e686a2c4. 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/f8d169f6-c56b-4a33-98f3-588a2f936688.json and https://artists.proofprofile.net/proofs/artist/f8d169f6-c56b-4a33-98f3-588a2f936688.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 0xfcdf9d51be86ca1b169ffd4fd9c04102f38349114623994a391511c803dedfa1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T13:58:05Z), 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/QZMHK2217597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa814dfa64f0d1fe71506fa29e03d1ffbaf1cd9fe0a646d08a09397cc3de13b7b. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZMHK2208304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ce9310269a3d20eeb878e33818d73fa13aaf81ad77f08db69b437fa18d0ae9. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QZMHL2290546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10e1764e01707135611b93c1a6f71b597ace3c324dd86abeefa5f2732c9a43d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:56:08Z), 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/QZMHL2284811.
I'M NOT ON DRUGS I'M ON PILLS FOR GOD SAKE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a9ff1a783f9331a8f3cb1633791f61f6b3f31c2454b7cbb0e7d67b4f7f8f22. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:46:32Z), 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/QZS672291514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6887223cf58cbc5bbbbf2e3830e19e29be6a1477c0c5265d2260fd5380aefb6. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/QZS652251692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10e1764e01707135611b93c1a6f71b597ace3c324dd86abeefa5f2732c9a43d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZMHL2284811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b550102eb5ac02dbf6f3e6927f5d2ccbf4fffa19b5270f852f1ca0fe588540. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:24:30Z), 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/QZS652287901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdea023834b7d749cd2acde6d7423e44e467ed2d047206c8b36f98ae15b3c64. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZS632335248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3094fc03481693fed758bd692aaabe659298f428736ad24ff880db92d0f6897d. 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/QZS632332635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51397ae122c0adef41af551a0bf7e5bcb18f85ea90cb685e341b098dabd3f9c8. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/QZS642254390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1051a4ec171f0885c9ff50df68db67745fb588637a2843dfbacef66b70040c. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZK6H2343382.
Barbie Lifestyle (From Barbie The Album)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367e5a0088d84d94b26292e0d98f77500b6741b71c5a5831b0ff016dc62bf995. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:17:36Z), 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/QZMEP2368202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c16aa4169f6750458c9c883a2a25513ba35c649ce80ffd0186f6ddca605d4f. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-22T00:37:06Z), 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/QZTAS2321508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ac3a62c85867d7d478dd2b3b4326d8e91507dd5136b26a1a3ff09c605b9931. 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/QZTBE2347380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe4807403cc597103e53c04bdf85d2078b1fe122ebc01ba43fc707bf8f7a9fd. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZHN32458018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6b57ab6391a1f0d6698bbb5863722e21f2228fb408a5c0d55347e96fa122e6. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/QZZ7N2586065.