{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:3Z3KEBWYBPPEK6TL2UCBVAJ27M","short_pith_number":"pith:3Z3KEBWY","canonical_record":{"source":{"id":"1210.8058","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-10-30T15:54:32Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"fb99e0bc1a51d5826826d250f859dbfd58affa7d5d02aa20100c96308fc2fd35","abstract_canon_sha256":"bc923f594142d412215fd1e89db3b8c536ebe6a73f4ac189303bd517e7db0c73"},"schema_version":"1.0"},"canonical_sha256":"de76a206d80bde457a6bd5041a813afb06b578909cd1ab45c3ea34fd7175fbd2","source":{"kind":"arxiv","id":"1210.8058","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.8058","created_at":"2026-05-18T01:53:35Z"},{"alias_kind":"arxiv_version","alias_value":"1210.8058v1","created_at":"2026-05-18T01:53:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.8058","created_at":"2026-05-18T01:53:35Z"},{"alias_kind":"pith_short_12","alias_value":"3Z3KEBWYBPPE","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"3Z3KEBWYBPPEK6TL","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"3Z3KEBWY","created_at":"2026-05-18T12:26:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:3Z3KEBWYBPPEK6TL2UCBVAJ27M","target":"record","payload":{"canonical_record":{"source":{"id":"1210.8058","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-10-30T15:54:32Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"fb99e0bc1a51d5826826d250f859dbfd58affa7d5d02aa20100c96308fc2fd35","abstract_canon_sha256":"bc923f594142d412215fd1e89db3b8c536ebe6a73f4ac189303bd517e7db0c73"},"schema_version":"1.0"},"canonical_sha256":"de76a206d80bde457a6bd5041a813afb06b578909cd1ab45c3ea34fd7175fbd2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:53:35.507362Z","signature_b64":"QUESeNGe+VbPhLYwhpzxWjhWOzSejau0iuTEF7VgfsJ2iQjW2YSJfMEQCrvAfZ3nsnqH89rgDDhtbIHnBuFdAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"de76a206d80bde457a6bd5041a813afb06b578909cd1ab45c3ea34fd7175fbd2","last_reissued_at":"2026-05-18T01:53:35.505961Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:53:35.505961Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1210.8058","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":"2026-05-18T01:53:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kJYRkK4n5PPFqDc0zXMTc44duktLLkjWDjGILaPh4YVg7pHWMnfg5msPGeOdg2ZkWEW/sBP9zpIEL0V2NWDbAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-20T10:15:08.162357Z"},"content_sha256":"13738d79e0ba97ed11bb5a8632c8901283fedbe5603bff81354a13d651e46510","schema_version":"1.0","event_id":"sha256:13738d79e0ba97ed11bb5a8632c8901283fedbe5603bff81354a13d651e46510"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:3Z3KEBWYBPPEK6TL2UCBVAJ27M","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nanodust in the Interstellar Medium in Comparison to the Solar System","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Aigen Li, Ingrid Mann","submitted_at":"2012-10-30T15:54:32Z","abstract_excerpt":"Nanodust, which undergoes stochastic heating by single starlight photons in the interstellar medium, ranges from angstrom-sized large molecules containing tens to thousands of atoms (e.g. polycyclic aromatic hydrocarbon molecules) to grains of a couple tens of nanometers. The presence of nanograins in astrophysical environments has been revealed by a variety of interstellar phenomena: the optical luminescence, the near- and mid-infrared emission, the Galactic foreground microwave emission, and the ultraviolet extinction which are ubiquitously seen in the interstellar medium of the Milky Way an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.8058","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":"2026-05-18T01:53:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"urLArZWoL22XZqEO5yK+FogSUI0lvGcZNBlTaXqY05BKI95g1r6ai5cUFsYm/bS0D33dyRfOG1DfVnfMv0YhDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-20T10:15:08.162715Z"},"content_sha256":"08e5badfc2f1774a3079674c613cee9a866f7eb64657286d1022755ee1997a46","schema_version":"1.0","event_id":"sha256:08e5badfc2f1774a3079674c613cee9a866f7eb64657286d1022755ee1997a46"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3Z3KEBWYBPPEK6TL2UCBVAJ27M/bundle.json","state_url":"https://pith.science/pith/3Z3KEBWYBPPEK6TL2UCBVAJ27M/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3Z3KEBWYBPPEK6TL2UCBVAJ27M/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":"2026-06-20T10:15:08Z","links":{"resolver":"https://pith.science/pith/3Z3KEBWYBPPEK6TL2UCBVAJ27M","bundle":"https://pith.science/pith/3Z3KEBWYBPPEK6TL2UCBVAJ27M/bundle.json","state":"https://pith.science/pith/3Z3KEBWYBPPEK6TL2UCBVAJ27M/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3Z3KEBWYBPPEK6TL2UCBVAJ27M/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:3Z3KEBWYBPPEK6TL2UCBVAJ27M","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":"bc923f594142d412215fd1e89db3b8c536ebe6a73f4ac189303bd517e7db0c73","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-10-30T15:54:32Z","title_canon_sha256":"fb99e0bc1a51d5826826d250f859dbfd58affa7d5d02aa20100c96308fc2fd35"},"schema_version":"1.0","source":{"id":"1210.8058","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.8058","created_at":"2026-05-18T01:53:35Z"},{"alias_kind":"arxiv_version","alias_value":"1210.8058v1","created_at":"2026-05-18T01:53:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.8058","created_at":"2026-05-18T01:53:35Z"},{"alias_kind":"pith_short_12","alias_value":"3Z3KEBWYBPPE","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"3Z3KEBWYBPPEK6TL","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"3Z3KEBWY","created_at":"2026-05-18T12:26:53Z"}],"graph_snapshots":[{"event_id":"sha256:08e5badfc2f1774a3079674c613cee9a866f7eb64657286d1022755ee1997a46","target":"graph","created_at":"2026-05-18T01:53:35Z","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":"Nanodust, which undergoes stochastic heating by single starlight photons in the interstellar medium, ranges from angstrom-sized large molecules containing tens to thousands of atoms (e.g. polycyclic aromatic hydrocarbon molecules) to grains of a couple tens of nanometers. The presence of nanograins in astrophysical environments has been revealed by a variety of interstellar phenomena: the optical luminescence, the near- and mid-infrared emission, the Galactic foreground microwave emission, and the ultraviolet extinction which are ubiquitously seen in the interstellar medium of the Milky Way an","authors_text":"Aigen Li, Ingrid Mann","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-10-30T15:54:32Z","title":"Nanodust in the Interstellar Medium in Comparison to the Solar System"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.8058","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":"sha256:13738d79e0ba97ed11bb5a8632c8901283fedbe5603bff81354a13d651e46510","target":"record","created_at":"2026-05-18T01:53:35Z","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":"bc923f594142d412215fd1e89db3b8c536ebe6a73f4ac189303bd517e7db0c73","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-10-30T15:54:32Z","title_canon_sha256":"fb99e0bc1a51d5826826d250f859dbfd58affa7d5d02aa20100c96308fc2fd35"},"schema_version":"1.0","source":{"id":"1210.8058","kind":"arxiv","version":1}},"canonical_sha256":"de76a206d80bde457a6bd5041a813afb06b578909cd1ab45c3ea34fd7175fbd2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"de76a206d80bde457a6bd5041a813afb06b578909cd1ab45c3ea34fd7175fbd2","first_computed_at":"2026-05-18T01:53:35.505961Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:53:35.505961Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QUESeNGe+VbPhLYwhpzxWjhWOzSejau0iuTEF7VgfsJ2iQjW2YSJfMEQCrvAfZ3nsnqH89rgDDhtbIHnBuFdAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:53:35.507362Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.8058","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:13738d79e0ba97ed11bb5a8632c8901283fedbe5603bff81354a13d651e46510","sha256:08e5badfc2f1774a3079674c613cee9a866f7eb64657286d1022755ee1997a46"],"state_sha256":"bd9ad95eccbefa9eb97bddac2ca7adc98f754e561eee7ad3af8afb867e76a217"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bE1gWuqPq0ztZC+Y4ifcT8XuL1b0xMROGjL3JiQN/vuhlD7TX8yWgoVsWnr5D/gKhSdoUUC09vHbMzm8DAqXBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-20T10:15:08.164697Z","bundle_sha256":"dd279ddfbe1536a0a0796b71dff4cda744906711e542aa5847e2fe0b04af45b7"}}