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 0xa4cc0385692ea4e10b37cf462fd5c498bd3565f121b9b00f98e3fd8247749191. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e7b77a79-a2b3-4d53-baac-87d88bd1688b.json and https://artists.proofprofile.net/proofs/artist/e7b77a79-a2b3-4d53-baac-87d88bd1688b.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 0xbb982576613738c6c5f03bf736f728f8168296dca74c68dd75ef431ab39c6d39. 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/TCAIM2464246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f2b2dc72cb178289c7479ce90ad062b343066935012cadcef144e790b0620b. 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/QZDA72465639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf163673c08aa1c9610e7c8569588580b12815f018de8bf887685f315ffbaf104. 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/QZDA72465641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f9112a9abc2978405c754a32da9c5c73410549b2e225643325c16df1f81f22. 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/QZTBF2367397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da4dea8100e49db6bef7bb7aeda695ccacad962991115a54b1088cf5a2c591a. 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/QZTV32377545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a3696de424953827e106bb683ae2277c7401177842637df938cba5c3777779. 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/DEWO71700556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536e7f91dede98ed12dbd7952dc6a5b8f908cd4a8e30be510ce5478f3644557e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEWO71700532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d161eb8c99f2ba65a9a9e59b1714c24b552de9eef17d8fc2d1958aa0de71bc5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEWO71700489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6ac06da2b9aae07f1d3856eb97bd3fb6613586a8e5268683d6f4a717325d63. 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/TCAGK2200590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c5ff3e0b5a94fb163f547d41e0ffddee7be5706e9e9c351c21a5e9c869b469. 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/TCAGJ2206069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff43c6062cd4d73f52c588c7898f6977480d357ee3a00989dcf3559a818ae6bd. 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/TCAGD2206944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53f77425734a665396bd39668b6f9746326b0a098bd9f488f3cd4570155eff1. 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/GBHGV2100140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54a4bfabff2055f379d47c86a630aa432bae2f143cc9ada3e512a58d0f16a20. 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/TCAGA2219400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006a5e24fd27556bd0789aa347207d377d7d216306f2b643e53d1c2a9973b83f. 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/TCAFU2111769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c6be174de882cb861533c10fe01d801b7ef107cc37f97367b979fd2cc8261c. 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/TCAFR2174701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1e6725eca122c48e8390ea64989f8a05cb567c70bb91ed9649b2f67c0f1134. 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/QM24S2010288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4404ca75bfb7ecec793c419ebb17ad69896187e65bf81706dbb16d86f95fa828. 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/TCAED1945159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284cb99840aea77cecc4ecfeca5e2e994bc34be4b8c5768b4dc5f40073724916. 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/TCADE1794958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff6e5a23bd7bc5e7114949a3b0ae967128b1e2e8f9170f88c2e2e09f5cc7f10. 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/GX38U2430644.