Robert Kirkman (; born November 30, 1978)Löchel, Ingo. "The Walking Dead: Die Comic-Serie – Robert Kirkman". Zauberspiegel. Retrieved February 17, 2013. is an American comic book writer, screenwriter,
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 0x33b06b9e28de5d30107dbf7b1834a2ff0b2212afd7c6c0b3283eccd47ff9677e. 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/b729e80b-3a22-4b74-b1a0-01a4c968908e.json and https://artists.proofprofile.net/proofs/artist/b729e80b-3a22-4b74-b1a0-01a4c968908e.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 0xb890cb708a024b4c5246884ff8829d7727f677a3a44c5f38684db39f535b5956. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/DEZZ42191261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1e32d7bbf6d9a03abef79dc629194f7fd7e93560bfd028fefc7066dc7e82c4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEZZ42191262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa335b45a7d806aee693bdd56cf3164d85c4a381673584d5b5e62fa464d3d1e07. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/DEZZ42191263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf85e7209144f33048a85fc926a09feaf16c0cd771b2c1d11e6429dd8fdb924d. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/DEZZ42191264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6845bb1c6f5d72e4134bb73af4c822bd1407062889fd7c9f4c48209ad9d82162. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/DEZZ42191265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac04e0c254e03eec411d1e388deff690ec135d6da5a33ce825819c1e9d1dcfd5. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/DEZZ42191266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a5a8c8366fd2bc8d2bd637026bbd6de7e74b29c64e70078f75ff2481295c12. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/DEZZ42191267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bc0313bab882c6fd5479b49aa613a738eda3e45778ba4ed0c770160590f41f. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/DEZZ42191268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0785d1c8906862e6c4cc4aef3f3fabba665248a8a217dd3b88b461ee898f77. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/DEZZ42191269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a15e15d88d27878f563a5bc336ed171822cc2220b3dcdae0801741b8ce8b12. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/DEZZ42191270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddbd0ce3c9f0dc0b271fed45a30b7949ca76dadbd5999c66a1ccbd5517b0c04b. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/DEZZ42191271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb72e48ea9db1fe11166d313a41366b725d101d1c967610a058df522d39e5a6. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/DEZZ42191272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2eb340c455e5ce053f19bfcb3f0bcc9e75391b2a486788d046a181d1c2d523. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/DEZZ42191273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb3904a37eafdb55d89ef4cd34e4c66ef48f8322a70fd957e54ad5da38e994d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEZZ42192644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5355ab1d70405b83b946c5a98c3d7e0aa87e8d5fb7e3324270c6dc98c401b1da. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEZZ42192648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f91241084f2e83cacb4d6ccb8493938d3128e3f9dd720b8c446d4c561f4280. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/DEZZ42192651.