Marshall may refer to: Places Australia Marshall, Victoria, a suburb of Geelong, Victoria Marshall railway station Canada Marshall, Saskatchewan The Marshall, a mountain in British Columbia Li
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 0xfeec5bfb60bd1ec0ddadd62d32a43087003aee50981d739ff0028820b6359a4b. 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/4fffdb8e-49c6-4cba-baba-1f10555a5ffc.json and https://artists.proofprofile.net/proofs/artist/4fffdb8e-49c6-4cba-baba-1f10555a5ffc.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 0xb42fbca005b03b5c9819d2373f0e61905ca1c6d9e534f19c8e2fceded2a3ae2f. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:34:27Z), 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/TCAHW2475337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27439b5f31677385068f9d42c895911145fc1525b2a04c47d301632de6bbce7d. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FRENP2400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d36b3b939ce0207e18db706fc723e7b0fde22341a24a6daa1320d0c620c063. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FRENP2400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce5f01cb8c5455e91e44389f0299462cf626d3ae228b4ebcbe1581ccc67b121. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FRENP2400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb025cd7d51a3dbbc589003e6ec4d1542c45034f749faeb91c3bba53856f1457. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/FRENP2400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2fad81bd34469f8ec76fbab56bfc11a9ea814f0d7d8c514fcdd2d780ed29391. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:44:32Z), 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/FRENP2400110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34501cd015b957aa154e068746cfe4cd69d3b14f5ee67e7efe53ca9731eb3155. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FRENP2400330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d7834f09ae70da25c1843654ce2bf2974bda2402c380838a619eed1ee3ff48. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRENP2400370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdedefb56e5141d47bf7ea07bbc3468d5febd9cd9f71bad030093a9dbf7640e7. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:17:44Z), 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/FRENP2400410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e087ab836f26c3e2b6d783f430a09108b628446e5193ac23d6ca5092343372d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FRENP2400420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8cf1428b7e7546bfe8b4b48db34de5400bbb185918edc8d26b1449b3aec2e45. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FRENP2400440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866d432a812f64828a1df580875abee81f4510e5ca24aaa468aa52f69a68a83a. 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/USZXT2454332.