Grave Secrets is the fifth novel by Kathy Reichs starring forensic anthropologist Temperance Brennan. Plot Brennan is searching for human remains in mass graves in Guatemala when two colleagues are
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 0xa476012349eccbe037fa98dcc210c71285c3e8091f9ec46714d2266cfc3cfd90. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/78db06c1-fc75-4e44-8a37-f16366e7cecf.json and https://artists.proofprofile.net/proofs/artist/78db06c1-fc75-4e44-8a37-f16366e7cecf.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 0x89202f884e0e6977e5a403870a189641bb96dc69308732fd973c8cc548de7f89. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZK6J2241912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c7bdef34e5394407a476fa0996e930c2a57de47fae9edc2b4d596654f72de5. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZK6J2241914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c6cba6ae8128bec4e6f000f6b755200b45032ad2c78aec166e2e5a8b835a6d. 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/QZK6J2241915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d901274cd8ed3b6f0e5df95ab5d6c86eff44b6cc665b99fa3c19c7ea2a8485. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZTB42284803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7bd336646655646498f7aaca7e2eb0d194391d7cb3ba4d3ce20da63d1091d4. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZTB22362779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17ac88ac9ce70559f41aab6f73f9f4a14a3b55b47290fddf43e9a1534f4a485. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTB22362780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660b2384cb1f7eb3015b90504a23541157ea95355d06613374ed2715269c0a88. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZTAT2392893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25186c686f09188eea7aec455d0f80d4bde1fcf9ee44ba2f0206c5e2cbf43961. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/QZNWR2352759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5cf1d0bbeed2c737ba2cbce56b3ac5ed907de6e279fdfd7d5b316b08acb204f. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:09:30Z), 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/QZTB22362781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8482eec9a01f00813093ebd738f5b25563484ace01e0c6ab42963579c735d837. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:20:57Z), 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/QZTB22362782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d408ac33ac6959a2b7471f1b97e1ad92d153b27e82744e5ef0fb4c824df0cb4. 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/QZTB22362783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87e82bc8132c268203fbb182ef261b5dbb5447cfbe36da68d129d4fc1420f26. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZTB22362784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8ed4bd737a977de09d8abaec3cc2fdaed3be62360b952df0d6cb0a0ef1f1b3. 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/QZTB22362785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4114af45fc62dce62504e9627383df7048b4c7739abefefb4513b2ad35cf4aad. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/NL8RL2522477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0eb49ea3d9b4895bf54c60340ba101d12944672bc24003c55ce5426d12fd41. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/NL8RL2530785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b41787e64518bf70edf6c140590322ceb75a9d4b93ca11e557297ce7bc5c133. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/NL8RL2530787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x656353a2ce078ae1d4c546cc5b9f8c65686a8e897c422f8cc6b49b658027a8d0. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:52:48Z), 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/NL8RL2530788.