{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:JNFFOVKHR4CPMIB4EQOSOACX4X","short_pith_number":"pith:JNFFOVKH","canonical_record":{"source":{"id":"1503.00703","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-03-02T20:49:04Z","cross_cats_sorted":[],"title_canon_sha256":"01022587f679755db0c3aa26ee77b9639951536e71513b54d4a1969d829e5542","abstract_canon_sha256":"13f68e17c8d3e145a641c67471add020c59ca3eb1c9553d4457d173743d48bc1"},"schema_version":"1.0"},"canonical_sha256":"4b4a5755478f04f6203c241d270057e5de12c916e96ab9530cdb7909413ddbbe","source":{"kind":"arxiv","id":"1503.00703","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.00703","created_at":"2026-05-18T01:40:53Z"},{"alias_kind":"arxiv_version","alias_value":"1503.00703v1","created_at":"2026-05-18T01:40:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.00703","created_at":"2026-05-18T01:40:53Z"},{"alias_kind":"pith_short_12","alias_value":"JNFFOVKHR4CP","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"JNFFOVKHR4CPMIB4","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"JNFFOVKH","created_at":"2026-05-18T12:29:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:JNFFOVKHR4CPMIB4EQOSOACX4X","target":"record","payload":{"canonical_record":{"source":{"id":"1503.00703","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-03-02T20:49:04Z","cross_cats_sorted":[],"title_canon_sha256":"01022587f679755db0c3aa26ee77b9639951536e71513b54d4a1969d829e5542","abstract_canon_sha256":"13f68e17c8d3e145a641c67471add020c59ca3eb1c9553d4457d173743d48bc1"},"schema_version":"1.0"},"canonical_sha256":"4b4a5755478f04f6203c241d270057e5de12c916e96ab9530cdb7909413ddbbe","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:40:53.784998Z","signature_b64":"c6P1J4imUdCQpjeVvRcZSTzeOip8o7SzaPXTfpmMUKwcp58CrcXQJxPx//q8BNdYVFqX4SI11CfP3COQFJEhAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4b4a5755478f04f6203c241d270057e5de12c916e96ab9530cdb7909413ddbbe","last_reissued_at":"2026-05-18T01:40:53.784232Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:40:53.784232Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1503.00703","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":"2026-05-18T01:40:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CoLY9J1/BFV6EZdMlzzdrm1ATUXHMFmxlnTys4Lm6q4CuIabfNVbNCeip2jq2evmX6wS8P+O+yMnmf9ugt3KCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T00:14:28.666232Z"},"content_sha256":"143e2850b2f883eeb8c2cee7b7c1b31f8d6db36877912a36248e790e77c1b3bc","schema_version":"1.0","event_id":"sha256:143e2850b2f883eeb8c2cee7b7c1b31f8d6db36877912a36248e790e77c1b3bc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:JNFFOVKHR4CPMIB4EQOSOACX4X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Absorption Coefficients of the Methane-Nitrogen Binary Ice System: Implications for Pluto","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"J.M. Bergonio, S.C. Tegler, S. Protopapa, W.M. Grundy","submitted_at":"2015-03-02T20:49:04Z","abstract_excerpt":"The methane-nitrogen phase diagram of Prokhvatilov and Yantsevich (1983) indicates that at temperatures relevant to the surfaces of icy dwarf planets like Pluto, two phases contribute to the methane absorptions: nitrogen saturated with methane $\\bf{\\bar{N_{2}}}$:CH$_{4}$ and methane saturated with nitrogen $\\bf{\\bar{CH_{4}}}$:N$_{2}$. No optical constants are available so far for the latter component limiting construction of a proper model, in compliance with thermodynamic equilibrium considerations. New optical constants for solid solutions of methane diluted in nitrogen (N$_{2}$:CH$_{4}$) an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.00703","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":"2026-05-18T01:40:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q5rpHedf1skhNVNJKt1ULmL4+/Yk/M+scD9qQOwi0IXcW/GUUBtkx58GOg25YzF/IkoseGqRCcd0xCDa7cE8Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T00:14:28.666598Z"},"content_sha256":"eb83cbb2b4f883159586ffdac9b0f6de82e317ef612ec21b3a6b92546ea28a1b","schema_version":"1.0","event_id":"sha256:eb83cbb2b4f883159586ffdac9b0f6de82e317ef612ec21b3a6b92546ea28a1b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JNFFOVKHR4CPMIB4EQOSOACX4X/bundle.json","state_url":"https://pith.science/pith/JNFFOVKHR4CPMIB4EQOSOACX4X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JNFFOVKHR4CPMIB4EQOSOACX4X/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":"2026-06-01T00:14:28Z","links":{"resolver":"https://pith.science/pith/JNFFOVKHR4CPMIB4EQOSOACX4X","bundle":"https://pith.science/pith/JNFFOVKHR4CPMIB4EQOSOACX4X/bundle.json","state":"https://pith.science/pith/JNFFOVKHR4CPMIB4EQOSOACX4X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JNFFOVKHR4CPMIB4EQOSOACX4X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:JNFFOVKHR4CPMIB4EQOSOACX4X","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":"13f68e17c8d3e145a641c67471add020c59ca3eb1c9553d4457d173743d48bc1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-03-02T20:49:04Z","title_canon_sha256":"01022587f679755db0c3aa26ee77b9639951536e71513b54d4a1969d829e5542"},"schema_version":"1.0","source":{"id":"1503.00703","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.00703","created_at":"2026-05-18T01:40:53Z"},{"alias_kind":"arxiv_version","alias_value":"1503.00703v1","created_at":"2026-05-18T01:40:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.00703","created_at":"2026-05-18T01:40:53Z"},{"alias_kind":"pith_short_12","alias_value":"JNFFOVKHR4CP","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"JNFFOVKHR4CPMIB4","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"JNFFOVKH","created_at":"2026-05-18T12:29:27Z"}],"graph_snapshots":[{"event_id":"sha256:eb83cbb2b4f883159586ffdac9b0f6de82e317ef612ec21b3a6b92546ea28a1b","target":"graph","created_at":"2026-05-18T01:40:53Z","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 methane-nitrogen phase diagram of Prokhvatilov and Yantsevich (1983) indicates that at temperatures relevant to the surfaces of icy dwarf planets like Pluto, two phases contribute to the methane absorptions: nitrogen saturated with methane $\\bf{\\bar{N_{2}}}$:CH$_{4}$ and methane saturated with nitrogen $\\bf{\\bar{CH_{4}}}$:N$_{2}$. No optical constants are available so far for the latter component limiting construction of a proper model, in compliance with thermodynamic equilibrium considerations. New optical constants for solid solutions of methane diluted in nitrogen (N$_{2}$:CH$_{4}$) an","authors_text":"J.M. Bergonio, S.C. Tegler, S. Protopapa, W.M. Grundy","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-03-02T20:49:04Z","title":"Absorption Coefficients of the Methane-Nitrogen Binary Ice System: Implications for Pluto"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.00703","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":"sha256:143e2850b2f883eeb8c2cee7b7c1b31f8d6db36877912a36248e790e77c1b3bc","target":"record","created_at":"2026-05-18T01:40:53Z","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":"13f68e17c8d3e145a641c67471add020c59ca3eb1c9553d4457d173743d48bc1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-03-02T20:49:04Z","title_canon_sha256":"01022587f679755db0c3aa26ee77b9639951536e71513b54d4a1969d829e5542"},"schema_version":"1.0","source":{"id":"1503.00703","kind":"arxiv","version":1}},"canonical_sha256":"4b4a5755478f04f6203c241d270057e5de12c916e96ab9530cdb7909413ddbbe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4b4a5755478f04f6203c241d270057e5de12c916e96ab9530cdb7909413ddbbe","first_computed_at":"2026-05-18T01:40:53.784232Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:53.784232Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"c6P1J4imUdCQpjeVvRcZSTzeOip8o7SzaPXTfpmMUKwcp58CrcXQJxPx//q8BNdYVFqX4SI11CfP3COQFJEhAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:53.784998Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.00703","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:143e2850b2f883eeb8c2cee7b7c1b31f8d6db36877912a36248e790e77c1b3bc","sha256:eb83cbb2b4f883159586ffdac9b0f6de82e317ef612ec21b3a6b92546ea28a1b"],"state_sha256":"1c145077f59dc3594045c7e6512bf37a9656b05072dd495b283df30f630246f7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LkT2frQ588H/ymrzx/cgKLBoRGByuNFPbz/5inyH39tlhjrQ23lnLfph87QMiUOuGfVfpiSS57HkXWDEsdndBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T00:14:28.668634Z","bundle_sha256":"990dcf937230ab7760a1949d51e3676ffde7d7cdc1d05a4d70523aec226c2b03"}}