1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x94f719d297c6cda09a1122e6dd739b37b3e49a413443f87ee99f2b85ef082ee2. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4fdac3b9-315e-447a-b41c-82e4b8aa846e.json and https://artists.proofprofile.net/proofs/artist/4fdac3b9-315e-447a-b41c-82e4b8aa846e.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 → block OTSBitcoinBlock must exist at that height 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 0x2d6ec942b9fd0ae9a523cf0f9639fa9c77d563b09e7a1c19382423041ca91ed1. 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/TCAGK2235581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b357aa93d6b36cb4c8a4a62f801abdc1d810057d4af4cf4a8a87dbe7d3a2dd. 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/TCAGK2235593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0bf2bd6a6cedaf30fd434b6997d89270d2bb80536d9d66b0dd3985bc602d9dd. 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/TCAGK2235599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6568eb73f5e93c556cf60ca040f1365f7437db6259d4b224730d037cd4ac7bdc. 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/TCAGK2235607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fedfe4ec912a660750949ab5890b0bbc04eeffa982bbc50216eebb6ea046ba. 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/TCAGK2235620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d8e6cc48fe036ac61d54cb3565a2636929e522bbff21df2baddb446495a478. 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/TCAGK2235627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e93ef34ab9391ca8ce2f78d275ea8d167d385a712ea262efc5fd10d9039f92. 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/TCAGK2235662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a4c431a711a4969583b4e40080868f7bd7f3e426ec92ef6b2e6306b69dd5e1. 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/TCAGK2235690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff10333ce09cdac415f82c153435df375735e8283ad7de682813633263bc1b4. 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/TCAGK2235719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85ae24e3ef79490321da6b58eba100592d2ea9b6564957cd9963ab3b58e7c0b. 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/TCAGK2235742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2339e7af27837153c06b71564d9d9e2292087aa8cd0799b42da5ae4ae70d14cc. 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/TCAGK2235753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3652ffaea0d59d4bf1166849119d71d8a96a2761f5143a5cb641abbd908de5c6. 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/TCAGK2235775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea07c5428fe40c182e83af0a393489496a57c0b8b79374b5d0b440d2ce9d9fb9. 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/TCAGK2235787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe731b0c5b9997df58e07e640cd542d7addd22177f67d768d39e8f69050448375. 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/TCAGK2235800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb29779936a8332ed4634d486b1291c7dbb12ff3362f596b62d6d2763657202. 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/TCAGK2235812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7318b50236a869cd99ce4499656de51f4b488a51e05faa6c54e28d69610a4fe4. 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/QZHN62240138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7870b8c97589cf1434d32e6085446e1cd75ed2c1986d63c07abce633160a6278. 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/QZHN62240139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc152d44c8cc0833c728836a89a541693e549a33dc38da7b53eafd0bbea359a0c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZHN62240140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b1d1203a2974f293e1424b0009452c358496cb917609281df0590fb7ddc5e9. 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/QZHN62240141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867fe1cc9059e0f3b4dc6fdc4b43d7e6062a4a06eb65a3e035aefee5442b989d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZHN62240142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e5828f2ac1efbe4d9c86c799a909b19f1daff7de732dd13123f37cd50fef6a. 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/QZHN62240145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20c0dd7c9b67c393121a3eb77f897475ff3aaf876030fe2509381d81096a122. 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/QZHN62240146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0287c3de9f0b19db4f1e9235855a9f2e6ed4416592e9164451a20fb1de73b639. 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/QZHN62240147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4447405490e4fdc4788e6c170ff075c31a7516c5a6895c50214b364ac6e3457. 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/QZHN62240150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a07656c95cc1feb95e5114d2ad12b375b070ca42072261f5b140c7a695b6ada. 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/QZHN62240151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddeb0d8f39939cda0bce157cf7245dc58f0774e73f921ad95aa4c8ef1664267e. 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/QZHN62240152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2f067211390078616e28b5cada5e84fce90b66ff2cb667e624dc1cfbc9ebb2. 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/QZHN62240155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03da9b5f1b58951b9f0d1d098074fe6905d72b61af9a6326fe235d3c8b17fbd1. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZTBE2360490.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17bc0e25baddf5fdc9c209be1cd438a3d10f3a58c09cddc9f1e2e90e70d1169. 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/QZHN72246783.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10986e24447a82ad05636e084bc64bde0b06b525a02b1b57db0daf60b65d34fe. 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/QZMEN2065325.