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 0xd3c01244959da85af97630106f7374ada170c768f95bbfd575439d45814f645a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/575abefe-e87e-48a9-99fd-50576c4d5e6d.json and https://artists.proofprofile.net/proofs/artist/575abefe-e87e-48a9-99fd-50576c4d5e6d.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 0x9ec3b781d9838a01f059ff624d4f43d1ba757b9172b8f4bd855117652c29ff66. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/QZK6F2427819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfad6e6cb605d2827c0a3aac87a3cebe29fc195ecfae4f0e88e53f4a3462c4aa. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/QZMEM2488734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3491dfa14d87bc25979655fae7a81843abf5cf26a3381dc4d97cb62e4d52a9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZMEP2417438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a5988e8ed2adcd1c502fbd44f9c41ccf066b31246bac9873d67cce2918690b. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZMEP2447333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9917977ee9bbeae600d2c3964cf33f316e82af013c20cd549b68efe6f2e43a. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZTAT2476982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508483f67cd82f4e95e4cab5e9209c05d354f3ba7985fe49d787cc382dba3cc2. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:51:44Z), 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/QZTAS2492358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446562b217155e916d5cfcb11af95c9bcd6717704850a7d63b3febccbc262884. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZTAW2442741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b0004e90c469990ef6df61041e61954d07544f4832922fd5a9029054c2c8b1. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:17:28Z), 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/QZTAW2491778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85440e8698c04f88ccf5f9d286c0a937e0cb302cd3cb8e0794de365853439988. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:51:23Z), 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/QZTAW2494457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb981e939c320ecc0438c49714fac77def44dd3ea24bb2b58b72875d6cbfa18ef. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/QZTAX2470555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef3b1bde53e85617dbaffd2d2c05d4ba58b543a7602cd38eaaf54a38a3ca5e0. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZTB32411198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785f8af31c15ccf6731c650ad67cbfd33049e3a7663a10fd9ec119d916f86817. 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/QZZ7R2423474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073d857d9251dfb70e68f2818fef8cdaadc8d1d010b6ed3367f854fd065e77f0. 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/QT3EY2446409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c09188d16673a19f2aa8b6fc52ceb48c0ac6762d2c0d09b7abf9ca1ad019b87. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/QZK6N2510691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8535043016ae2671236299b8ba20ff62e39505d83095159e68562aaaea6b73ce. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZK6J2594706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8ecf5a1c3188efc63cbb40ff6557b4b9cfc6813d72ee7b8ce9477e15870c0b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZRP52500655.
HERO (Dustbelief Papyrus Chase Theme) [Forsaken UST]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610d919b1e6d17c11a61577e083177e0c234e135caf1affbea9c9d6f13e60590. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZWFS2568273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f74799781056d74b8e3483b7713e7519f69ca66b912cecf88c42f3264c07e2e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZZ782572004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632d0758dba1221d50d2d24ececa83dad8ccb786516729764b37d45f56bef0d1. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZZ7R2518692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69be9c2b24758445a7eccad1aad27d1a9003d734aac5a2c56fcad908235d11ee. 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/QT3F32501001.