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 0x7dfa597eaf1412d7bfed73c803135f94e2a45ab330b781a805673759c073586f. 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/22117419-5901-4cb1-ac6b-20158f1d6bb5.json and https://artists.proofprofile.net/proofs/artist/22117419-5901-4cb1-ac6b-20158f1d6bb5.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 0x79dc1dfa8a43363dfdf84bff863d7fedce4f342ad2563e096aa65f7db2ddadd2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/AUBEC1824684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830d260b46ca3d3121b62ed19021de6244571d2fbc9481deb20dd658876d6db9. 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/AUBEC1833929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6876597ab673a2446ffe966730df75fa91de8c344378c74c4bb296b1e813c26d. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/AUBEC1928067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7438f64a5c2f7ae703c407614fbd2845940c99c420fe8524235a7c7f46ffe3. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/AUUM72100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7438f64a5c2f7ae703c407614fbd2845940c99c420fe8524235a7c7f46ffe3. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:23:26Z), 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/AUUM72100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b158582ba97b8926c5e7c88a0c65610a42ed269b85a352518315edfe446f7b4. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/AUUM72100262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7d7a49ec528609d43c370a29e304bb510a8c502cae194a021da32af01502bf. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/AUUM72100496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e819930ff1b2804d7e45d2190e5d32e0bcdcd9ac238c0c696b6c9dd2cb4e99. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:54:56Z), 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/AUUM72200199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3295b0789379bde3510cabe4980a4df4ff6d3379b4f252107fbb2b0ff43961ca. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/AUUM72200375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163c50211124c32fe26a2a5a3b031a39c9983229d1672994e88bbcc5208707ca. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/AUBEC2306724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68b97cbf1f70b15ce1beeefeec93d99570f0747bd3092d892c818d177bace90. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/AUBEC2318580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfffd91d25cd2e2a9092fc008d74c13ce5c4be91b441dfe1ccae0e95bc0a5517c. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/AUBEC2323677.
Cap Carter (Live at Sugarshack Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649f67e1f9db0afb3be3e08fb0354ecb9b115d4e016c3fa044495293f8dd9c81. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/AUBEC2472256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2b2ba632e781037ed0f7d05d8a42c4f83242dd5d81f9d9f95af9bd613cc468. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/AUBEC2360146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8953b62f5c0261b34a2553698d148d88d63f74e0e12d97141675a26d6c907a06. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/AUBEC2459470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8953b62f5c0261b34a2553698d148d88d63f74e0e12d97141675a26d6c907a06. 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/AUBEC2459470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03be5bbe5ff5ab59e92da82bf117be6699f5e361769d9ee39fa53c829937f513. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/AUBEC2531486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14861bcd3559e69f01cf490623df9cc7c05612b04f49e86171340f0edb8005db. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/AUBEC2474648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2b2ba632e781037ed0f7d05d8a42c4f83242dd5d81f9d9f95af9bd613cc468. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/AUBEC2360146.