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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa36c7b50a0064fdb4bad2be2ba890f625ce3a72359e8a599863ae2b822cf22c. 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/b9068c02-5e3f-4fd6-938e-f6fdb84ce02e.json and https://artists.proofprofile.net/proofs/artist/b9068c02-5e3f-4fd6-938e-f6fdb84ce02e.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1de789c20829a83f9062bfc14b79003195d3d39a41172cfc6c8cc7969e1a635. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZPEW2411605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d8d3f96d008c875be1f0f616ac3e67808de2eed4da86647c9ed0949e3eebb4. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZPEW2411606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c6f17feac6a0289fa8752f3a9173b6e7edd1ce1bec01739d877606af7b3c73. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZPEW2411607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589b9237b661ac5298be1a2646b858a3bdf76d121d4f3ffe43dd747c36a13a06. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZPEW2411608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af67f740ea1ae76d1f079d152014eb28efc55587952bfea017d2588d15c249b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZPEW2411609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6a31133e9551dded1c08ef1c39eb6f54f8320640fd2dc9b36b052960c6cbce. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZPEW2411610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c8b2282596ad5caf5e715a172e876f0cbd5c374cb05279fee8219b9c6409b9. 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/QZPEW2411611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70469857ad5fe058b41362209fd035b0c657a3548c69bbda374f4e01391b4621. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZPEW2411612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979972984d41cf3887345996e87704d1d8fe4f01a6c3d27d6ed013f3752c8630. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZPEW2411613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb896854ba40f538aab2b6ddd5f3748c7b78e99f0d782a76452775d6bfb5afd0e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZPEW2411614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb15c776ba0582859b56f6c3aa15f308efb0a5ed6606b0bfc949befe8c992b6. 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/QZPEW2411615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7d149f64c8cbd95252b04ec6a8a6251909d8f7434f93988bcd43e140fecd30. 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/QZPEW2411616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b65399097c8cfaf1bfb31ee62c26de88d3604fbf2058b8ce799f06e65011b8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZPEW2411617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0035d3909b3691df65253457cb30a565188a7eed6d2b6f89ada6bcc60cc3e22. 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/QZPEW2411618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd875a8027d3ed574247aa8345b6ac2508ef7d4edde9f60228590a38db9f10348. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZPEW2411619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd7b8bb69a07ef205e3addcfdb538d546130d8282c4567dcc48c1572952848e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZPEW2411620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f46612e4e89991f8fbe83bdfaa7f2eef5e3b2baf5979b5ea38aca438c63fb62. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZPEW2411621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d06544779d16c37e17660f61479fbf915f69f4f30084ca67774044359d6cde. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZPEW2411622.
Queen Of Dragon Riders (Inspired By Baldur's Gate 3)
Queen of Dragon Riders (Inspired by Baldur's Gate 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d3cb672f56250af222f790eb28cf61b83df76d9f544d3b5b40027362cd89e41. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZPEW2419387.
Devil With a Heart of Iron (Inspired by Baldur’s Gate 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a2bbdd007db0283e7b36e2fa83ab2631d83408f84243fa4ac2123ed0fca76f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZVEM2362809.
Wizard of Waterdeep (Inspired by Baldur's Gate 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e3c6e7e38de6869e3a6fccfa737a6310c8eacb76d0fa39f2bca98e90b8d085. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZVEM2377667.
Shadowheart (Inspired by Baldur's Gate 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26151bf980160bf58ce4b9b034f0b2d818884492941d53efb7cc4652949efbd0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZVEM2374381.
The Pale Elf (Inspired by Baldur's Gate 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7419a540b07fd400d87a0101bbb27121d5e06c385ee2d11fcb867b270c71d9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZVEM2359808.
Blade of Frontiers (Inspired by Baldur's Gate 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10cf01bbb0aba9632c67961b224f8edceb764f41fce00e9e4e2d9334f050867. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QT2VB2463117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d3cb672f56250af222f790eb28cf61b83df76d9f544d3b5b40027362cd89e41. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZPEW2419387.