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 0x6f3b1539a658609bee612c87a204f64083a4537c8cbf6eb02d3bf39c8a18891a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ccce13d-3bc5-482d-b466-4ceebb51eb69.json and https://artists.proofprofile.net/proofs/artist/6ccce13d-3bc5-482d-b466-4ceebb51eb69.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 0x9cf5e7e7a1d9478c397ddec3b6ad56d0eb7be1f50c0323f12bc186341505ee23. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCAGQ2290888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3ac90ebd7298a03260a797ab561203dc004078411767119d0f1f9e1b8c8676. 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/QMDA62134557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd950d1f36845287fa5830d768a1f2c1afe230e14d5ccd303eb9592720a707f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMDA62134612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3ac90ebd7298a03260a797ab561203dc004078411767119d0f1f9e1b8c8676. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMDA62134557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da3f80c242f84e95c6ec6e3bb2dc9fbcc7e466be89e5d060124565dacfe5418. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZMZ92365989.
Elijah Prophet Meets Costa Rebel Going Home
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde08986516ab0eb598f24c925e0a206997e5797517a98e88cc6215867463ad4a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCAFR2115124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0616ac6b14d02dd99cb518fe08f1a302e75dd9c377ac9fc56f9e9f44572a3d80. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCAFJ2132988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef9c857b7250aa5d3d8eac33e873da99042a64e95ce179127066a9ef02f2b4b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCAFR2174762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5dd8529b519ee628d728991baa48ac32ec84bc33a536b49b714a5666199dff5. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TCAFQ2163907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307c7a387bd337c8b2eaeac87a745ec43868cc5e9b0288ee569ba25ede5bc2a9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRX872424266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d07dd12088ef07b2d35d34657ae8ecff3f468f6b8f81bbb2001b2dd19b28d0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCAIB2467296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9834846a67f251ca8f664221b3aa320c2375697c1a6ccd205ee210c5fc0a2a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCAHY2433348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7013e2e4bb4b03cde26ce46194fda6fc90ef23d43bce93123bccb549df92b7f0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCAHX2410855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a64777b69b7255efb9cef6fa3f7d2dc7236af0319d8dcf04e991e8d15444cb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCAGY2301086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90dd0de068307cf5b5efd6f954480d82bc1573bf79c68c1f8d3cf7b5c6fad7e6. 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/TCAGW2305506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f1a30f944032a55600e0ead8467643197a176ccbc2397260c2d83d3e648a39. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ARF472200138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2044ffd352d218e425c525cff13d54a51f7f84980fa84d7befb310691e4511e1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCAFM2157247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bfaa30a6362244afe32a49a18b55e36242aa0f6a4e6273f6266fcc714339096. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCAEO1969042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2312f0d2a1229b9f59f828456bfc1cb24d692a97fd73cd25b7b7ab6dd4e29804. 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/ES16E2100260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd47e161b41b243638b721bd23bd90e6da0ad514bb63993d9ce1fcc9c46ed90. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TCAFG2080112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e8ae0ceff79797bcbc33bd0017ea79407826c4c4fce4eece51101971496080. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCAFA2086608.