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 0x9134f80aaac8162a1053ffdb2c80d302ab4f3a88474f8da6a7a020be04d7625b. Chain 2 (Bitcoin): anchored in block 953719 (2026-06-15T01:07:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8a353efb-e290-4471-a5cc-ed679ff7a2f2.json and https://artists.proofprofile.net/proofs/artist/8a353efb-e290-4471-a5cc-ed679ff7a2f2.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 0xb4a40cac46683925ff1306348a0a904eaf480d3771fcf8ef28c190168e75f0b0. 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/SE6SA2090897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d87b26b9daecae9e42b3531a4a70896160a23d67d1071acc5090c6069765d9a. 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/SE6SA2064136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9025b0435bbb3b4c34a000dd89b2f4a2700338f802e0114a191cad5c510e48f9. 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/SE6SA2090898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af48b297d57e7985020a1bcd37370c8f32f7bdb0bf78d3437d6b2db57e0ec86. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/SE6SA2090867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fbe2c5d955e6c5fa4a14fc73eeb14986e04d77cbeb638867f857b1de3fe0590. 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/SE6SA2090860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea890e3f2e754484c30a081d34b62a39d1e80afe6b38e9aa2124ba7ae9ea670. 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/SE6SA2090849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12cbe8e20b40f14ecf81a78484ecf5330556f7db55ea1c41ff0fc163994376f. 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/SE6SA2090854.
Frat Mouse V: The Department of Motor Vehicles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6832f9b00c89952e3980b5439e56b33f96d92c6679af74f180704001b58f91de. 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/SE6I32029468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601b52cc21bfe1ba4e59bbcd957b0a7de207535ed83b91bbb120a467890682fe. 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/SE6I32029469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4d3b8683fc374f7c01f0692b8c81aba289233cbb6656d08439a7bb31e77cfc. 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/SE5752032134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761637a0d4317ad4ff377112e619efd1c40c376cc874a3b711d0d7ad1ad6f44b. 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/SE6I32029470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487b2aa7b04eef078a69c4954bdd515eb0af0039da878e0da4a810139c7bce67. 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/SE6HN2026789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23699ac441c1e2374256e3bdf0039eb459dbbdc334927b5b31beb58f79b25698. 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/SE6I32029471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4b259dd7c48112db6c7587c8b8e48d2d63b1975e4735aa983d69cd6c6e5b6b. 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/SE5752032133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524d32352769bba63b323d90d46ab863578b5b80b38c484764e53d663b4ee648. 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/SE6I32029472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61807d28909fe09e22637ba0d48cd15b8d9b6f11d51d499eca3801b7cec415c6. 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/SE5752011095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e72d0cddf196d3aabed82b93226c693e4265fc154bcc55494c42cf5cb1070a. 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/SE5752011096.