{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:3LFQDMUMPOQI7ZLJEYJBDYZOUB","short_pith_number":"pith:3LFQDMUM","canonical_record":{"source":{"id":"1212.4181","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2012-12-17T22:25:12Z","cross_cats_sorted":["hep-lat","hep-ph"],"title_canon_sha256":"a195e25c077eb30f4a3cffd0f4bc59a49cc927b5e81fc0d4c4bdbeaef6d594c0","abstract_canon_sha256":"82a086f21cfb5fa84984ec80cde7be39975a0a3b23299fc35e85486290cb5cbb"},"schema_version":"1.0"},"canonical_sha256":"dacb01b28c7ba08fe569261211e32ea07c4d6beb2324b65b894c62050b3d3e1e","source":{"kind":"arxiv","id":"1212.4181","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.4181","created_at":"2026-05-18T01:52:31Z"},{"alias_kind":"arxiv_version","alias_value":"1212.4181v3","created_at":"2026-05-18T01:52:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.4181","created_at":"2026-05-18T01:52:31Z"},{"alias_kind":"pith_short_12","alias_value":"3LFQDMUMPOQI","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"3LFQDMUMPOQI7ZLJ","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"3LFQDMUM","created_at":"2026-05-18T12:26:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:3LFQDMUMPOQI7ZLJEYJBDYZOUB","target":"record","payload":{"canonical_record":{"source":{"id":"1212.4181","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2012-12-17T22:25:12Z","cross_cats_sorted":["hep-lat","hep-ph"],"title_canon_sha256":"a195e25c077eb30f4a3cffd0f4bc59a49cc927b5e81fc0d4c4bdbeaef6d594c0","abstract_canon_sha256":"82a086f21cfb5fa84984ec80cde7be39975a0a3b23299fc35e85486290cb5cbb"},"schema_version":"1.0"},"canonical_sha256":"dacb01b28c7ba08fe569261211e32ea07c4d6beb2324b65b894c62050b3d3e1e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:52:31.276175Z","signature_b64":"ZTHr2mkTA+17XYyAxZjOriTca5+3YaGewY7sNrYZYyjBdUngHL27rCFMhzETvL/qE/K4tzPbA53gP53wKWBIAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dacb01b28c7ba08fe569261211e32ea07c4d6beb2324b65b894c62050b3d3e1e","last_reissued_at":"2026-05-18T01:52:31.275716Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:52:31.275716Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1212.4181","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:52:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CzFDQ8A1WHZbqgr8lECsymilckcgGfPCOYhBiARgfyHAZLvRi8PO6DcFXFQKnTrXajspBFYovvE8/QwhtD+oBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:43:04.294090Z"},"content_sha256":"51f4b07d8dc24881202e37c822d11410ead5141f8675d19cbe44e00887d4165d","schema_version":"1.0","event_id":"sha256:51f4b07d8dc24881202e37c822d11410ead5141f8675d19cbe44e00887d4165d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:3LFQDMUMPOQI7ZLJEYJBDYZOUB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Viability of carbon-based life as a function of the light quark mass","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-lat","hep-ph"],"primary_cat":"nucl-th","authors_text":"Dean Lee, Evgeny Epelbaum, Hermann Krebs, Timo A. L\\\"ahde, Ulf-G. Mei{\\ss}ner","submitted_at":"2012-12-17T22:25:12Z","abstract_excerpt":"The Hoyle state plays a crucial role in the helium burning of stars that have reached the red giant stage. The close proximity of this state to the triple-alpha threshold is needed for the production of carbon, oxygen, and other elements necessary for life. We investigate whether this life-essential condition is robust or delicately fine-tuned by measuring its dependence on the fundamental constants of nature, specifically the light quark mass and the strength of the electromagnetic interaction. We show that there exist strong correlations between the alpha-particle binding energy and the vari"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.4181","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:52:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/NF4U28v4Sd/eRxgaYnS+7Zo8uanXodkyWtgw2u2VCht+9XlD2j2mUZo4ZEgqXHZmFguF4V6FNal47xfYzs5Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:43:04.294840Z"},"content_sha256":"6ddf9029983efd647a2b266a1e9990868c1e5b6660ff03791007eb0b8796c2f1","schema_version":"1.0","event_id":"sha256:6ddf9029983efd647a2b266a1e9990868c1e5b6660ff03791007eb0b8796c2f1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3LFQDMUMPOQI7ZLJEYJBDYZOUB/bundle.json","state_url":"https://pith.science/pith/3LFQDMUMPOQI7ZLJEYJBDYZOUB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3LFQDMUMPOQI7ZLJEYJBDYZOUB/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-25T20:43:04Z","links":{"resolver":"https://pith.science/pith/3LFQDMUMPOQI7ZLJEYJBDYZOUB","bundle":"https://pith.science/pith/3LFQDMUMPOQI7ZLJEYJBDYZOUB/bundle.json","state":"https://pith.science/pith/3LFQDMUMPOQI7ZLJEYJBDYZOUB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3LFQDMUMPOQI7ZLJEYJBDYZOUB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:3LFQDMUMPOQI7ZLJEYJBDYZOUB","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"82a086f21cfb5fa84984ec80cde7be39975a0a3b23299fc35e85486290cb5cbb","cross_cats_sorted":["hep-lat","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2012-12-17T22:25:12Z","title_canon_sha256":"a195e25c077eb30f4a3cffd0f4bc59a49cc927b5e81fc0d4c4bdbeaef6d594c0"},"schema_version":"1.0","source":{"id":"1212.4181","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.4181","created_at":"2026-05-18T01:52:31Z"},{"alias_kind":"arxiv_version","alias_value":"1212.4181v3","created_at":"2026-05-18T01:52:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.4181","created_at":"2026-05-18T01:52:31Z"},{"alias_kind":"pith_short_12","alias_value":"3LFQDMUMPOQI","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"3LFQDMUMPOQI7ZLJ","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"3LFQDMUM","created_at":"2026-05-18T12:26:50Z"}],"graph_snapshots":[{"event_id":"sha256:6ddf9029983efd647a2b266a1e9990868c1e5b6660ff03791007eb0b8796c2f1","target":"graph","created_at":"2026-05-18T01:52:31Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"The Hoyle state plays a crucial role in the helium burning of stars that have reached the red giant stage. The close proximity of this state to the triple-alpha threshold is needed for the production of carbon, oxygen, and other elements necessary for life. We investigate whether this life-essential condition is robust or delicately fine-tuned by measuring its dependence on the fundamental constants of nature, specifically the light quark mass and the strength of the electromagnetic interaction. We show that there exist strong correlations between the alpha-particle binding energy and the vari","authors_text":"Dean Lee, Evgeny Epelbaum, Hermann Krebs, Timo A. L\\\"ahde, Ulf-G. Mei{\\ss}ner","cross_cats":["hep-lat","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2012-12-17T22:25:12Z","title":"Viability of carbon-based life as a function of the light quark mass"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.4181","kind":"arxiv","version":3},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:51f4b07d8dc24881202e37c822d11410ead5141f8675d19cbe44e00887d4165d","target":"record","created_at":"2026-05-18T01:52:31Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"82a086f21cfb5fa84984ec80cde7be39975a0a3b23299fc35e85486290cb5cbb","cross_cats_sorted":["hep-lat","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2012-12-17T22:25:12Z","title_canon_sha256":"a195e25c077eb30f4a3cffd0f4bc59a49cc927b5e81fc0d4c4bdbeaef6d594c0"},"schema_version":"1.0","source":{"id":"1212.4181","kind":"arxiv","version":3}},"canonical_sha256":"dacb01b28c7ba08fe569261211e32ea07c4d6beb2324b65b894c62050b3d3e1e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dacb01b28c7ba08fe569261211e32ea07c4d6beb2324b65b894c62050b3d3e1e","first_computed_at":"2026-05-18T01:52:31.275716Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:52:31.275716Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZTHr2mkTA+17XYyAxZjOriTca5+3YaGewY7sNrYZYyjBdUngHL27rCFMhzETvL/qE/K4tzPbA53gP53wKWBIAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:52:31.276175Z","signed_message":"canonical_sha256_bytes"},"source_id":"1212.4181","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:51f4b07d8dc24881202e37c822d11410ead5141f8675d19cbe44e00887d4165d","sha256:6ddf9029983efd647a2b266a1e9990868c1e5b6660ff03791007eb0b8796c2f1"],"state_sha256":"be5fe914b4a972c961112184acdbb377bd83495606d9eaf2a38a2e1135d8cb61"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KNiCZXKM/vPeontjeDhHD5dKbb2yIyXjPdIJ3atX3b0giYH2ZdxH0JEOhazYVwEGy9ES9GzVirz4nrm2UY4QCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T20:43:04.298681Z","bundle_sha256":"ce6a5218370502f50b4443a4afad969a5cbed6069b69406def16d4ce9f0f5bda"}}