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 0xed69625bd2ca3375803ba18c1817ef255c8bbed03a6f1c65b592b3f9363630aa. 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/32038b9b-0330-47ed-b530-2ae5226f4b7e.json and https://artists.proofprofile.net/proofs/artist/32038b9b-0330-47ed-b530-2ae5226f4b7e.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 0x868561374b6d1ea4fdb581eecb33c5279cd61c1a44090e6ecfb002f0ae999169. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CH4102306601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfbcddaff24a4754f4f5fcac179b6cd1e86fac8e70407710d96e5da1f5171380. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CH4102306602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bcd59a1878fe90e1ac7417e58e4f3c6a448a7b79af6c2c0844445260ad5bef. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CH4102306603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3fbe5fa0dbc351610f57ac27b22a5a1a1ce8598d277c83fe9d8974a56899c1. 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/CH4102306604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb498392714fe10c8603728ae60596936243e4911e18676da04bc187288a8ed0f. 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/CH4102306605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01fa125fd40308caa1954b138348b5e42bb0fef0d6f647c05e974022232bab8. 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/CH4102306606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b97ebcf34f8f27ad2fbc3ac0acfb65e423d2fdc241006f7d57fc2cf0ee0841f. 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/CH4102306608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d363fcf832c103994d6f50ef8432789752e7a3fa0ff59943751cdd65fa6978. 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/CH4102306609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee53038d88261d1d2b8e88e00ae003ad7660e85f517f1181f2076e77e8eadd2e. 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/CH4102306612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad1adeea0a1bf883c3fb3363d8efa3c035b7128a0093f550abf595bccf0965ae. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/CH4101905201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14dd3a3860aee741ec1245f61052ae9d3ee978bfa51f15d2876f34a0c1bb48f6. 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/CH4101905203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c79e2536e416c4793a2d346211d82d48415e0cb45f0f9f7a5b16cf6116c1199. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/CH4101905204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f525ac5a2f4349f0ba4597129e5c9598e5cfa0248533304c9b307e7ff0ddbb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CH4101905205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4675ee356226543a885176f5135ee5eeb48137f432fd5716a20021b2f7ea6f1. 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/CH4101905206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046a21f1c90503e7042b4837bc67dc53557522b7a312d0be0a8009bb571f13b5. 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/CH4101905207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93241216fcc2cccee145f84b5c58a24530375ceca11dcf41cda93f29fc80fe2. 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/CH4101905209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210e5bb1c7d993fc99441a8ba6b9d11b32b883655f6047cf0e01140f8768ada2. 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/CH4101905213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc59e0103e746b8c95a288762ebad57315067914df2c16f19dde0ceb734f2ddbc. 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/CH4101602401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d5e7e018c37a51441c8187f7888d8cf1a36744e7a0b4dd74d525d0972561a8. 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/CH4101602402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde02a6fa6426b97c4439142aa040680c4f6107c8774d68208c84d2ebcd67072e. 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/CH4101602404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93c9c20f775e6c085cdfaffd13687984afcc8e70fbfc9367b2c3b8d555640b9. 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/CH4101602405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf556e5f8440c1776e80964dca75dc78f4f9779dd1eb31e618ede37d8800fed31. 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/CH4101602406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73b5d0fb2574d8e9fb3a9fb265e8fdf1dd066247d775299796e2fe2d81f433d. 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/CH4101602408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf308bde8e2766b35c4f601e0084b30b8687875c81923e66a95f41d8652c1be80. 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/CH4101602409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27649e853e98abcbf99eddb8efa1e911ec4782ec63911016f3490677752ac004. 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/CH4101602410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48026c87f50193d7de18cda566a1ef39aea893fd198bf493a1f80ba71647619. 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/CH4101602411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a74f5c6e66c668024c1ceb46e16e7753a4165ed286758da47ebe4e2dd8e0928. 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/CH4101602412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe7e1f12d6e767d4326a6934a2311157d11cec78c7ccabd7b413f91ab2dac7a. 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/CH4101602415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd94eed60a75e86e221657dfb1cb153700bdb45fccfa0c66d5b41f58c5065f7. 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/CH4101602416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b362b0b4f50e94e8191786915602f88a0d3c39b70a710f625d104e69593abad. 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/CH4101602417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0791d7eb4cad4872831768a37c825618364809cff0339e252fd94103e2c8628e. 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/CH4101602418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfbcddaff24a4754f4f5fcac179b6cd1e86fac8e70407710d96e5da1f5171380. 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/CH4102306602.