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 0xdf2803d747e104d0d38971797d6ccab89b99a74bc4aa79cf96ae53bd69f73dae. Chain 2 (Bitcoin): anchored in block 953602 (2026-06-14T06:58:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0eeca5b1-c596-4379-a129-2d58c02ca913.json and https://artists.proofprofile.net/proofs/artist/0eeca5b1-c596-4379-a129-2d58c02ca913.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 0xb0eeff1f985769be8ac5d785c39935fd3e0f2fb346a532395abdd265022141e0. 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/RUA942239802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8046450e36609412d0f8aaf39a64e1ac9d26cd0e7a8ccdc5443d3aad70d1c9. 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/RUA942239804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5df0c014eca43fddb9d47492b576606cd34ae1482055ed8990ee23e9576658e. 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/RUA942239805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7637f37f9129094c3d83f840041d609fed41889ef6cc8774434036f78d509bbf. 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/RUA942239807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43d38f860452dfcd9426a3ce87b1d44f77558c1adef3c1e3701251f45db850f. 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/RUA942239809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb721772c8f78eee7b4395227510f04690c49518ccc041cfa4f048e032550058a. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/RUA942239801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad8918de0649b35d2dfdab831734452f46ef5764fde4e311ca5f80d9aa18409. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/RUA942239803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78bfd4c15cd3e6d857fcd6ac5d00f1b44366a2106592a593107b98e94b178fb8. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/RUA942239806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80955f1997bcd9c81a5eaee3a6ace94ea526a098e9951e727f40900493ae9b07. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/RUA942239808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc06fa7069371587ae0ba6f371608af10d996dad59757a91beb02aa8f3ca046. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/RUA942239810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a1101ee75da9c93c0d1f2e47891f595ea2a6f500f04582d1a231b9e00297f5. 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/GBWUL2056688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7416489ea211e9433fdd4267e25563ec6fcfdc54eb17a55b0bd3ea0e690452. 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/GBWUL2056700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b62a66bd28c02b90ee36fe2467e09a8f5a277338ccfd3414fb1533f8bee34c. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBWUL2056685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb92843133bb8fb5a4db89f73bd4f10e49c7c1070a550d79f1727f1e2ce5e6b. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/GBWUL2056698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6613fa3189e27f0afa0e2ad1f897884ed96150b9d61df01cbded47c6751e074f. 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/RUA942400901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0eeff1f985769be8ac5d785c39935fd3e0f2fb346a532395abdd265022141e0. 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/RUA942239802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7458df4d1693a6e842316252cb8f3b17614d338fba89f4ae3959c57ac010770b. 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/USLZJ2057932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06dbce5cc5943c36c2df09326a19e013e2d353ba603606e67a6e6710c2531390. 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/USLZJ2111727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d571cd9cfdde8116dbc6869617648c59ce818e28febd9918bb51a9e6077a6c. 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/USLZJ2111737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965b9103439277034ec621aba4ad9868707b7e04feab6cf0e209f89ba9ee0fad. 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/USLZJ2111738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed46df1708c9b244aa3b60ca94bd9ab095d45b34f04f1eab2eb10436d598c8e1. 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/USLZJ2111739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6419ad3a958063b06a266ee3d72970e2c58f4982ab84cb8499c4cc1af27f8d88. 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/QZ5FN1775323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4da5853bec582a88e82c1f321e427daaa9ac3f189bc6195b7cd89e5944e6896. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/USLZJ2111729.
Diary Of A Restless Mind (Extended Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ba107294769ba98f3bc6298073f614485f8680b82a0f3bbf0986d977744217. 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/QZ5FN2046539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c42ef5c3b36ad1cd472ef61778eb826da5a9cfd85597daf313dc16cb579789. 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/USLZJ2176873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4b13aee8b11e68ef84f188d9ebd9ec71cd58a958d8cf1ad0c6465692fb8aa1. 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/USLZJ2107889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1079858a156ce7521aa9003739dc95d060e298fa23305b7ffcdc6b6dc6ebe3f2. 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/QZ5FN2024999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9410f6a7a24307983ff12d3680aa6c5b9e85bb5b1d8c3c8c96c50d89e40c3afa. 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/RUA942340621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cc83c6068b2b37caf7c33d62331938a3ba10c9d8da8d80bd70c189dbe6dd0a. 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/RUA942137605.