Now and On Earth is a 1942 novel by Jim Thompson. It was his first published novel. Plot Set in San Diego during World War II, it is a semi-autobiographical novel of the author's life working in an a
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 0xd64df67f6ff7a6796d67e5fec1baead3bd96364410642bdfedd986aaaba479ba. 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/c65a68fa-bcc8-4458-afcb-639bc9ea1047.json and https://artists.proofprofile.net/proofs/artist/c65a68fa-bcc8-4458-afcb-639bc9ea1047.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 0x9bc3dc267cb9f13e888a9d2078c4947d5feeebc279a06d037fb601a3f66e3704. Chain 2 (Bitcoin): anchored in block 957720 (2026-07-12T15:26:09Z), 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/USEP41406006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8a6cfb16d1faea74c104d02c07dc3d07ea08f9dea860658f36b44854450ad3. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/USEP41406008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87bdf0bca80c035ae48a54aa4a9c7c09df02267fec4d48c03caa188ecd1aa593. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/USEP41406004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194ce7f6b67594b308ab95d9ff8db2214002eaff77239eff2ddbeef89f3e11aa. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USEP41406007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a50469b3c7fe23d0bddcd3945955e9c100e9ac40912b9386e8277e590c6c21. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:32:53Z), 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/USEP41406011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88cbd9dfa389b74854d0a583ebcddb8e7abfffa9447595c831c325dae3152af. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USEP41406005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d6dddd3bcf4c70144c54cf70a5f3ccc72fcad11c3b43dde7bf4738cc067b1d. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USEP41406009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c985914dff7b01f09bdc716b0ff0ac05867e7acd6e9bdceca8c6036f3496a79. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USEP41406010.