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 0x875a003878dea58fc3b84359f9496f380e1c6db797e578d908e7b1594b0281a2. 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/95224441-cafa-4bb1-ab40-4d89672e1593.json and https://artists.proofprofile.net/proofs/artist/95224441-cafa-4bb1-ab40-4d89672e1593.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 0x9e1da9bcccf822ffdc96857e5c7d7e2ac75f3899797e5cff31709048e8dbb83d. 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/EGA0S1912521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4124f77688585a75ef670b0caa3219d0884eb816d662d1eb9b7d9a6fb407b992. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QMBZ92098265.
مهرجان ملكه جمال الكون - فراوله انتى كيوت
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960a7930dc0f1c11af0983e7858836efd0bc0973b01c6d2dba22bb0b821e83b8. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:25:56Z), 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/FRX452117623.
مهرجان - الحته بتاعتي - كيمو الديب - احمد عبده
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816f01e2e4a0b3d579ed500dd87accecbd665efde3924d083ecc9068ba0f92ff. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:11:20Z), 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/FRX762325042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0698514150ba9c9ece25e22c6f2bdfa4ee9ac68bfceb1df632ca1cf51110173f. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/FRX762397146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e0e3da0cae6c4e84ddcb96307272a181014d2eb31c51d8d8dfcc99b90f9b0f. 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/QMDA62390690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706c06fd3a2242401e883b04d501aba3daca9b7411ffde7d4233b602ea8c57a8. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QM4TW2413449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee472acfaf5e76ba335a4179f8495bf441215456f797ec7b4f396fef984189e. 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/EGA0S2400154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ac94172b2d32d3267f903055d03727edf9a8fb3a4ff168cb5c924eff47932d. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QM6N22448174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb074d702e3e1f387b2c3073c5fbb8eb50cd57fabf50d877dea7cecac1379ea. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:06:52Z), 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/USUYG1589901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004545ceb5ffe21be402b9579e080316c70efda050c047e240f7400108b8a1d2. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:15:28Z), 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/USUYG1594394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f0262d69b21c6e1e34c2443f6ca6f72cfd60a5361933f4a5ef9080e37b5fcb. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:17:38Z), 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/EGA252515734.