4077 may refer to: 4077, a standard XNOR gate CMOS integrated circuit 4077th, a fictional U.S. Army hospital in the show M*A*S*H 4077, the postcode for Inala, Queensland, Australia 4077, the postcode
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa976c1c691f74576f9c6a7a3f3fd62e51bb908b796bb1a75c126cf70ba138a25. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a3f1d59e-82d3-46e2-b348-4842e485e8d3.json and https://artists.proofprofile.net/proofs/artist/a3f1d59e-82d3-46e2-b348-4842e485e8d3.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb826702f4584a5ba07b61b27dac19f977e8bca78f6ce027c11489dbd76bb65f1. 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/FRX202283551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9308a28904b532ce49a373f8670bc7bd6aaadd3a05b978bce9b34f79d6df7399. 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/FRX282496943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd537a32b1bf3fab83284c3bd6ac3168ee531a4881973ed3d1135276230ff4377. 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/FR2X42416851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2fc5de9000ce9c68ead60478fed19dab590cc6b9150bbda8dd049cda1058bb4. 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/DGA0M2304031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa382b9695078235b33cb0b344412ba23f0d86f80e0499acf4090008c756a6da. 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/FRX872307671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe74fb818e61eac7990ebae88064ff47c8adeda50c1507ec43cebee34132c49. 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/FR2X42301796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58e7538006a9afda716fe663098e531a5d78cba17ce315665c129b6b354b507. 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/DGA092209566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b42717dd33a4ab67517acc910d4c74fe5d28af3cdb6d7d6ac9ad0f93876ecea. 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/DGA062221673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4d0a6f606d2d8505de3e8f7b707b695c80355459c9cc09bf990e7e8fdff8ec. 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/FRX452272661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc88663ba451279e3dcaaeec5c76812af67728fd7a0c31bbed5bdca918b5ef0. 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/FR96X2250153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc386c05124a916868c0c656783712425a6ada9121419bc16d48ce00beb1a70. 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/DEH742202947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd82e212041a6045a1a415258607f0198bd3ea7118d4ce95cc0c5af0ed09b75. 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/FR10S2236538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a41bd399c2ece69b9af4ed5f532580135539cf118272000f0e6f6787efa9d8. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/FR10S2221897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc3ab73d4a77c81dc123c325bc486767d12038009404a7882b41a6b45fefd45. 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/FR10S2203102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5be67c2de74ee36068cf0b91429b98b38561045410393f451a5e908e667da22. 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/FRX872133360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69de00e5d8f0c3cb520ff9a6f673bbc12218a22c83bc3735980c12eac040bdd4. 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/FRX762124472.