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 0x37e3b521b2d1012f25fb0b872f10eebc63f4a4ae1ed24dabf888c12acd6f5395. 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/31768761-aa47-4318-9632-93ebdc6bbe9f.json and https://artists.proofprofile.net/proofs/artist/31768761-aa47-4318-9632-93ebdc6bbe9f.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 0x7e75f1ff3a8f504a2867039c84ab0eb8bc0d7763f803688db0cc6b5868885a1c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR9W11216872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3207b351267e5805db4f06ae41be74da419893d623f104b78b6f98240abf4f2c. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/FR9W11304077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb1c200272e3b72a63b9bbe5c0cdb29915395c00e5dee776c530710c2a4c499. 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/FR9W11304078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59dac3348f9555df79ae773070eb6ee291526185e7c5185a3bf24a9bcab5b1fe. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/FR9W11304080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a146d8144032036041c29f769b66e4cff45ad418ec3c86a0f412d6d2d9a3c47. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/FR9W11304081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064a29ba70582a8514c936a3a4a9a8e56f881ed05019bc4deb07be552b160d69. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:09:47Z), 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/FRPIC1300120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbda70db26c90fb48ed9852e8826ed5bb5671b94a0a0058cc5a62dcbf01e943d. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:54:28Z), 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/FRPIC1300210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15cee9b641545bf362eb29173f7bb7ab9d1b6b4a32c3c374748461a5147b10c4. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FRPIC1300220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844c05089b32999a8df044b91399b9cb358265807d182da08b6c1d728cf58630. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/FRPIC1300370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ed6386b11eccc7669ac6626d6b2c75ef011ca30d0c84a6f7e573f210355780. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/FRPIC1500600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7552721f237dc1de033c8e1bf1f73d82afa292d980ca343310265543a328a94. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FRPIC1500640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a5b364172c5b3b7ad8c6b519bf4c625c488fcf07b246b09ecb54a76561ff6f. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/FRPIC1500650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3a5cc8e83f9252b69e1347570c54845736bc203a6e95c6893385d598391472. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:03:45Z), 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/FRPIC1500680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de72a0025bc152b9c1194f673d997d50b18938232731edba3787822c44354a1. Chain 2 (Bitcoin): anchored in block 957961 (2026-07-14T05:58:47Z), 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/FRPIC1500700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x078a09d7c9074ca69f5dd7c4043af736cb03ef034110891971de7bd7609eda27. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:08:53Z), 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/FRPIC1500720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5225f30b86f006f65a1a17d574d164e91b033b3ca1677255c43364413b4e900. 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/FRPIC1500740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b3ba934982444a70ebd65d674e7e2f6791cdd3605972845a59f0b4833c3487. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FRPIC1500770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39636e18c9e0d91ea53cc7bf1dadd93ba31b0c826476201ae8def67a8c662943. 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/FRPIC1500790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4e2888fab0092e5f880ba683c6f3a7d3f4c49ef8df1e4beaf1f056e7610c6d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRPIC1500810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e04ae4e5b33f1b8f9f1ff855e69f9f64fee7f94aeebdec20e43235b62a64db1. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FRPIC1500820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ba1ad99ee9358cc752d29cffc3b21ae97d66808f3984338834fe7a93d40619. 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/FRPIC1500830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ae73e0492287ebacfe8f14ec0eddc94566db0c2c3d6d77062211db7c227ae6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FRPIC1500850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229b261b9138880a2769012769a7f7fdc8101c79d10baa8d6d08fff33d624d6a. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:34:22Z), 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/FRPIC1500860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f341ab02e587626ddcb4cecc73965cf8e39d79ea259109a130ffa4a3cfe86e1. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:54:11Z), 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/FRPIC1500870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ee28574d68076e356afab658f53e972965698136d29ed08cbb2a07036e519c. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/FRPIC1500880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7160c11da1f4ec2c77d398a58d4b8f9531339db284dcbdaab4412ab92b3bbc. 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/FRPIC1500890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed51b099f6aaaf8e25a8033a82002569e206fd87b50f58c2cb665c9107aa5f11. 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/FRPIC1500900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10c7983e337609a09355330c20f4d73da7f82049aedf08e8e65394bbd7d16cc. 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/FRPIC1500920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca90c8bc162d7453287ae2f80bd6e11f70cfd19e0822003cb50efb60b064029a. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/FRPIC1500930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e75f1ff3a8f504a2867039c84ab0eb8bc0d7763f803688db0cc6b5868885a1c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR9W11216872.