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 0xcf5f81a2350b29cc09144e2b4aa3a0c8e9cc1b826087845f0cd2088643b6cdff. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9441ac75-deda-4f17-b2a8-759e5729cd45.json and https://artists.proofprofile.net/proofs/artist/9441ac75-deda-4f17-b2a8-759e5729cd45.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 0xc587c6ad299cd26b8dd2615391b941caedfc34a280c26355df36f473a4e48281. 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/USCG40510337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470ebb8bf54694becc5ce33cc71615d70d9bcef9473c18b640511ee47a2aaa6b. 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/USCG40510341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d4435464247454565a8f1ecc29313a02bc4e3e86e84c8b351a47bc0b209c2b. 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/GBSMU5137048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dce3ec7a8a32d4680d6628d78e6442b5b95c33f75fa036fc78308ed8bcd690a. 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/GBSMU5137049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9c3b6064d4ebb09bb9b45f48108bdb288f2a2d3fc33d1795e7e140ac3fcfec. 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/GBSMU5137050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41580be32c0055c55a2b3fd7a299a4fb891055ad449a82207ca39a57a06c75a. 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/GBSMU5137051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731e7f874a31e063df239fc7ea29c8e3ebcc88fa6df981fcbb74feb7e5ee9602. 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/GBSMU5137053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f8857aaaa52a5ebe85d2a8a1409ead707d360ab618bbacb614a9c4cfeb5134. 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/GBSMU5137054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02d8c1ab24b4053fd320690695e7ac8806e2e9b94d610d6d35d9dc818eb4324. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBSMU5137055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce50a7727d110396abce515137230cc48dbb9f33e4528ba45d75b343d06dbe4. 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/GBSMU5137057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ff66400c3f925a92bd1a184e2f70026910ccc44f63ec9279d5944d2f65f575. 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/GBSMU4144614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2325c447ec08e6d8584ac937681d827fca0e80b3e549b8efa2df53f185dcafd9. 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/GBSMU4144615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecc860185afae0584014322df4d98679a0699326c2683a19f0ab86b99acb94b. 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/GBSMU4144619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f46b027cf445320d8149cde6ab08a83746f994997848018828701bcb79f0f9. 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/GBSMU7734945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5ed257655dfa0eb6fbde406132749f9ad671871f7d401a0498ffb394b8e7f3. 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/GBSMU7734946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d6ea902619779319e5caef9f88117f36d526afcc90a9935d723c9d218ad785. 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/GBSMU7734947.