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 0x9cedce469326804c75733f00ac1808104a5a2369b6c7aaeb6ca815c75de266f6. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/03e99d7d-685a-4b4a-be57-fc340b4c0173.json and https://artists.proofprofile.net/proofs/artist/03e99d7d-685a-4b4a-be57-fc340b4c0173.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 0xf06c9cd541ba93d82e65f9d5befaec05c23858102e232f03b30f44dfeb9e58a3. 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/FR96X1894818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20325433387c91700dec69bc2322344c1663e14635740b2a6562c308a8edd311. 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/NL4CP2316431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d707dc6c7db8dc2d76b668f97655100e545275e6b0befdd1d429c8558d91f2. 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/NL4CP2316434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93aae336b565db241259de6341e741bcf21a1b85f3e708866fb1267aeab627e4. 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/NL4CP2316435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5052287e458ca5ba36ecf75926ccc4ba496c4ad78b99d161cf365f02bbe25297. 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/NL4CP2316437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95203f45e2764550e36aba4457ddb267c00e18375e8f3a7535c6fb4fb7058db. 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/NL4CP2316438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2dd2dd24cb23d29c0443fbd9a4a9bd0c96b6eaba45fe2269db19609b279af8. 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/NL4CP2316439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e47293e76c7056f451d578b4cea08c0a6793e4e185a572105b099d783091d73. 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/ES71G2100466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e53205140bdbf1e5c0b2bc324f62fcd1d950a9f00bce9df56dd4a7261ea4541. 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/ES71G2100469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0015e401016b60a92612055845e7eab243c0fa7ebd7a70635968928a09bf0814. 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/FRX201825816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d16339f6fd9e2a20384d17b26a045d020ae3bd696103193af83f38b7b66ed9. 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/USQHL1605701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b2329b5079cdd43bbc98e1bbe859091ebd0b3ed3a36dc2cc48a0d1edda4ca6. 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/USQHL1605702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826d32262f27aeafb86d6bfb5492bcf67cad3bca3d3e5536894ea46bc62e94e1. 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/USQHL1605707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427fbf2ed2f0859ae4a17eb7640a287d616e93af4b5b093d81f064f12e7367d6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USQHL1405003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9937b9cf1a069ba930f1f7c0b09ca0315cd7c6b3d0991b8763d272142742a380. 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/USQHL1405006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a04cefd974038f7870012bc5b2d38dfcebc9ffaf8cd635c4240de0c96278cb7. 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/USQHL1405012.
Back to the Pyramid: the Remixes, Part. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7389e2c54081abb2ee3bb5ad40838b0418ac34e9a1bf0c9141706a8322cc0065. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USA2P0600990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27d019cb1d4b6fc6305c54cec3fbe676903723bfacac2e1c2152980882ba20f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USA2P0601003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe991a7b0f98e7f6bdd9c5ee0a82148444a4fbf4ca3d91ec6502d2b2dede04ba. 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/NL5UZ2510584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b504b8f4be188fb25ddc7a6f97ec20000f0e0a58634592f000318af738b0fe. 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/NL5UZ2510585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c926a35b761eff48a24e6c0add341d02048df2cdc029d391444dd382c27e5f9. 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/NL5UZ2510587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf851bca9b2090b9cc716ffab637259bf5007bf085f4f90b36bcc54b81fcf4a8. 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/NL5UZ2510588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5fc8ea9b9a081a5f268c7ce26181185947f9171723289a9708035a09e103ee. 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/NL5UZ2510589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a49493dad88a3793aab7d770b0e016620e9c2fa0d6114b01af2f0e9cf42787. 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/NL5UZ2510592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183aa63d11e5fb5da3f26be352fed489524394516188b0764592c2a7fb9d7899. 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/NL5UZ2510593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd7946c3429da577eab511ee6f1636b55648f49a535503e3b3cd2c28442c94e. 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/NL5UZ2510594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e201945f3671564c48ab176d5c369565b051e6928a6908dc676aeacc1f69eeb. 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/NL5UZ2510595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20325433387c91700dec69bc2322344c1663e14635740b2a6562c308a8edd311. 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/NL4CP2316431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93aae336b565db241259de6341e741bcf21a1b85f3e708866fb1267aeab627e4. 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/NL4CP2316435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e47293e76c7056f451d578b4cea08c0a6793e4e185a572105b099d783091d73. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/ES71G2100466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0015e401016b60a92612055845e7eab243c0fa7ebd7a70635968928a09bf0814. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX201825816.