{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:IG6C65L7V7MYOHR2YVJCAIY5M3","short_pith_number":"pith:IG6C65L7","canonical_record":{"source":{"id":"1504.04461","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-04-17T08:35:30Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"ba17f1ad4b5efe82d3fd6f053921142a65ccd0986c688cfafa38ad3dbadb38b0","abstract_canon_sha256":"cc664a14d473898f97748ec44a9cbc31783692fd2058b50ffb07185222e075b0"},"schema_version":"1.0"},"canonical_sha256":"41bc2f757fafd9871e3ac55220231d66f3a0a56ff96a944ce61b6f6b50561cb5","source":{"kind":"arxiv","id":"1504.04461","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.04461","created_at":"2026-05-18T02:18:32Z"},{"alias_kind":"arxiv_version","alias_value":"1504.04461v1","created_at":"2026-05-18T02:18:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.04461","created_at":"2026-05-18T02:18:32Z"},{"alias_kind":"pith_short_12","alias_value":"IG6C65L7V7MY","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"IG6C65L7V7MYOHR2","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"IG6C65L7","created_at":"2026-05-18T12:29:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:IG6C65L7V7MYOHR2YVJCAIY5M3","target":"record","payload":{"canonical_record":{"source":{"id":"1504.04461","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-04-17T08:35:30Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"ba17f1ad4b5efe82d3fd6f053921142a65ccd0986c688cfafa38ad3dbadb38b0","abstract_canon_sha256":"cc664a14d473898f97748ec44a9cbc31783692fd2058b50ffb07185222e075b0"},"schema_version":"1.0"},"canonical_sha256":"41bc2f757fafd9871e3ac55220231d66f3a0a56ff96a944ce61b6f6b50561cb5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:18:32.318662Z","signature_b64":"hnlb2loHUNuR4VGvZXNImY7z0lug55+FWGLCchCBWNoukIJJbVcpo68TuEfixGW0OhgNIjNeUPr+8T+SelGUDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"41bc2f757fafd9871e3ac55220231d66f3a0a56ff96a944ce61b6f6b50561cb5","last_reissued_at":"2026-05-18T02:18:32.318099Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:18:32.318099Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1504.04461","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:18:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EOTFBc66Xb9FoOh7esy4MUPONQUULMrS7mvKjrkVpmB6r6zn5h1SMSSkgrUfHF5G46dicY8w/K0RRLOYHYbfDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T20:56:34.096279Z"},"content_sha256":"939032f5d53131a37011887c0d17a71ec8df407c782d7f16038c521f05d37de2","schema_version":"1.0","event_id":"sha256:939032f5d53131a37011887c0d17a71ec8df407c782d7f16038c521f05d37de2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:IG6C65L7V7MYOHR2YVJCAIY5M3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A primordial r-process?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"astro-ph.HE","authors_text":"F.-K. Thielemann, J. H. Applegate, J. J. Cowan, M. Wiescher, T. Rauscher","submitted_at":"2015-04-17T08:35:30Z","abstract_excerpt":"Baryon density inhomogeneities in the early universe can give rise to a floor of heavy elements (up to $A\\approx 270$) produced in a primordial r-process with fission cycling. A parameter study with variation of the global baryon to photon ratio $\\eta$, and under inclusion of neutron diffusion effects was performed. New results concerning the dependence of the results on nuclear physics parameters are presented."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.04461","kind":"arxiv","version":1},"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":"2026-05-18T02:18:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"odCmSp8m9+H2JcarAajlqLrNZmR7J/1Fg/J+JgLa/xZwLVQIM+zNJBOR3i9VTCFrnJIHTg8pu25QLFK3hqg3CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T20:56:34.096653Z"},"content_sha256":"55d7a219bd6becc60008f584e09bab2ca41fbc8d283ba53354f2e2bdd15d344b","schema_version":"1.0","event_id":"sha256:55d7a219bd6becc60008f584e09bab2ca41fbc8d283ba53354f2e2bdd15d344b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IG6C65L7V7MYOHR2YVJCAIY5M3/bundle.json","state_url":"https://pith.science/pith/IG6C65L7V7MYOHR2YVJCAIY5M3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IG6C65L7V7MYOHR2YVJCAIY5M3/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":"2026-05-30T20:56:34Z","links":{"resolver":"https://pith.science/pith/IG6C65L7V7MYOHR2YVJCAIY5M3","bundle":"https://pith.science/pith/IG6C65L7V7MYOHR2YVJCAIY5M3/bundle.json","state":"https://pith.science/pith/IG6C65L7V7MYOHR2YVJCAIY5M3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IG6C65L7V7MYOHR2YVJCAIY5M3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:IG6C65L7V7MYOHR2YVJCAIY5M3","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":"cc664a14d473898f97748ec44a9cbc31783692fd2058b50ffb07185222e075b0","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-04-17T08:35:30Z","title_canon_sha256":"ba17f1ad4b5efe82d3fd6f053921142a65ccd0986c688cfafa38ad3dbadb38b0"},"schema_version":"1.0","source":{"id":"1504.04461","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.04461","created_at":"2026-05-18T02:18:32Z"},{"alias_kind":"arxiv_version","alias_value":"1504.04461v1","created_at":"2026-05-18T02:18:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.04461","created_at":"2026-05-18T02:18:32Z"},{"alias_kind":"pith_short_12","alias_value":"IG6C65L7V7MY","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"IG6C65L7V7MYOHR2","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"IG6C65L7","created_at":"2026-05-18T12:29:25Z"}],"graph_snapshots":[{"event_id":"sha256:55d7a219bd6becc60008f584e09bab2ca41fbc8d283ba53354f2e2bdd15d344b","target":"graph","created_at":"2026-05-18T02:18:32Z","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":"Baryon density inhomogeneities in the early universe can give rise to a floor of heavy elements (up to $A\\approx 270$) produced in a primordial r-process with fission cycling. A parameter study with variation of the global baryon to photon ratio $\\eta$, and under inclusion of neutron diffusion effects was performed. New results concerning the dependence of the results on nuclear physics parameters are presented.","authors_text":"F.-K. Thielemann, J. H. Applegate, J. J. Cowan, M. Wiescher, T. Rauscher","cross_cats":["nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-04-17T08:35:30Z","title":"A primordial r-process?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.04461","kind":"arxiv","version":1},"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":"sha256:939032f5d53131a37011887c0d17a71ec8df407c782d7f16038c521f05d37de2","target":"record","created_at":"2026-05-18T02:18:32Z","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":"cc664a14d473898f97748ec44a9cbc31783692fd2058b50ffb07185222e075b0","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-04-17T08:35:30Z","title_canon_sha256":"ba17f1ad4b5efe82d3fd6f053921142a65ccd0986c688cfafa38ad3dbadb38b0"},"schema_version":"1.0","source":{"id":"1504.04461","kind":"arxiv","version":1}},"canonical_sha256":"41bc2f757fafd9871e3ac55220231d66f3a0a56ff96a944ce61b6f6b50561cb5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"41bc2f757fafd9871e3ac55220231d66f3a0a56ff96a944ce61b6f6b50561cb5","first_computed_at":"2026-05-18T02:18:32.318099Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:18:32.318099Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hnlb2loHUNuR4VGvZXNImY7z0lug55+FWGLCchCBWNoukIJJbVcpo68TuEfixGW0OhgNIjNeUPr+8T+SelGUDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:18:32.318662Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.04461","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:939032f5d53131a37011887c0d17a71ec8df407c782d7f16038c521f05d37de2","sha256:55d7a219bd6becc60008f584e09bab2ca41fbc8d283ba53354f2e2bdd15d344b"],"state_sha256":"ba7475d9d6f4e37a842399ab72b0bb0248144737318440eb4ebb4feb287829f9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eU3OWmTaZAmaf+gwqq2Lqxju0XYTXwVDmNyOsdmrJi9w5T6oLzitoLI6NipVL2fUpg7aTIudmU0BQGUIOOpYCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T20:56:34.098737Z","bundle_sha256":"59ea956cf975f1c5c6bb4297dc925e865ce443af5c9494c338dc5a4d8e80064d"}}