Zombie Nation may refer to: Zombie Nation (musician), a German techno artist best known for the song "Kernkraft 400" Zombie Nation (video game), a 1990 NES video game Zombie Nation (film), a 2004
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 0x9660104eaca44dd02a5596df31960f703c246520a3f90ec186313ed9f39845ad. 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/21d24453-f0b7-449c-903c-4cb7fb9f5d69.json and https://artists.proofprofile.net/proofs/artist/21d24453-f0b7-449c-903c-4cb7fb9f5d69.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 0xc12f8149d6b3d73c9337920c097113db2390d1ae7a39af8ee1373483df5550b3. 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/CAT391100109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf453a98be204343a5bc6d55ed696ff6cdeb387c58700d058183d5f47a24cab8. 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/CAT391100152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c9ba3562e4cae96dee6037a915566dd104a5bd430ff8c67cf10afad0bf1171. 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/CAT391100153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecee4539e508be9f92154bfe74b7eeb21199b500fb0098f2de4b6a6f3fc64270. 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/CAT391100154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a22142c437f118b1de034be405caf89ab112668d834ce60f84636297eccd755. 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/CAT391100155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc094d80c4e1c40c37ca210a5887190a35afd69d3fa0d00dc762f77dfefd01598. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/CAT391100156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13b6f17899e6fc22f2c248f93278577dc33ca5f23eb0cceff11fa2150cbdbb8. 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/CAT391100157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1671eabf164c2028c5a24637d9a288c38166bda1d30e1a8a98745aa20abab330. 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/CAT391100158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b6bbd79751d74cb85dea6712f8ef56b8391d4996b597f2ec43ff17c4b3a3540. 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/CAT391100159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87352e6e7bd00ce3b7fdeb40eb8d41e9ed11151aa49974d90abce9a9c1b47df. 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/CAT391100161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac30212012019c2548a0da35db4db981bcdd379dba171b81a0252f3a7679709. 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/CAT391100160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed7f4f88eb0516fbdaf2e00929dab615d653a2e982aeabb1c93dc2e748ae1fc. 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/CAT391100162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca16de3b7f2bc150720f7e9bbb5ca8af1fdd8dd94d0f57b1e797701195e28c5f. 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/DEZ200500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa534dd6613d52293bd073b1afbad699d1234ceb440bc4d244f314fd24632aba. 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/DEG932303567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a60dc27b91381f8458e51c1ba37a978abba799c13cfcecf9daaf2c869b4559. 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/DEZ200600039.