{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:FT7E23STE6IUKEZB3WHV2TVRIY","short_pith_number":"pith:FT7E23ST","canonical_record":{"source":{"id":"1301.5599","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-01-23T18:48:46Z","cross_cats_sorted":[],"title_canon_sha256":"01506eb50e03c8fc140fc2b699ffbd9de03620305396b266eab12042abd550bd","abstract_canon_sha256":"a5b32b0e966e0b5617d85c08b9bb8d8a33d9dc3ae61edc34eb33c5f7c8681825"},"schema_version":"1.0"},"canonical_sha256":"2cfe4d6e532791451321dd8f5d4eb14616708f6dfb4895ea69e79397e6533de3","source":{"kind":"arxiv","id":"1301.5599","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.5599","created_at":"2026-05-18T01:51:59Z"},{"alias_kind":"arxiv_version","alias_value":"1301.5599v1","created_at":"2026-05-18T01:51:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.5599","created_at":"2026-05-18T01:51:59Z"},{"alias_kind":"pith_short_12","alias_value":"FT7E23STE6IU","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"FT7E23STE6IUKEZB","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"FT7E23ST","created_at":"2026-05-18T12:27:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:FT7E23STE6IUKEZB3WHV2TVRIY","target":"record","payload":{"canonical_record":{"source":{"id":"1301.5599","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-01-23T18:48:46Z","cross_cats_sorted":[],"title_canon_sha256":"01506eb50e03c8fc140fc2b699ffbd9de03620305396b266eab12042abd550bd","abstract_canon_sha256":"a5b32b0e966e0b5617d85c08b9bb8d8a33d9dc3ae61edc34eb33c5f7c8681825"},"schema_version":"1.0"},"canonical_sha256":"2cfe4d6e532791451321dd8f5d4eb14616708f6dfb4895ea69e79397e6533de3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:51:59.309593Z","signature_b64":"gQsRBQlFXjIFwuS+yfFhNkgk5+viDrCCYWTa6F8QaQ1kE/q54RM1nN7S7hddM9AqfYJcKf4jjh34y6rDJ9k9DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2cfe4d6e532791451321dd8f5d4eb14616708f6dfb4895ea69e79397e6533de3","last_reissued_at":"2026-05-18T01:51:59.309136Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:51:59.309136Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.5599","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":"2026-05-18T01:51:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+IXd0UEBjuk63uLJFwLZLQIKk4gE9MQlzLv8X97ZCc34V4zSVloiR0P8JJoTNWdyABtgs+Jz0sClgf5cvkt0CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T08:11:31.163915Z"},"content_sha256":"a5ca6487c5158c06fb5cd8fcf1bdac91aad9f3fb7e8cd6a162321cafd9a9f6b4","schema_version":"1.0","event_id":"sha256:a5ca6487c5158c06fb5cd8fcf1bdac91aad9f3fb7e8cd6a162321cafd9a9f6b4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:FT7E23STE6IUKEZB3WHV2TVRIY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"No temperature fluctuations in the giant HII region H 1013","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"B. Brandl, C. Morisset, D. Schaerer, F. Bresolin, G. Stasinska, S. Simon-Diaz","submitted_at":"2013-01-23T18:48:46Z","abstract_excerpt":"While collisionally excited lines in HII regions allow one to easily probe the chemical composition of the interstellar medium in galaxies, the possible presence of important temperature fluctuations casts some doubt on the derived abundances. To provide new insights into this question, we have carried out a detailed study of a giant HII region, H 1013, located in the galaxy M101, for which many observational data exist and which has been claimed to harbour temperature fluctuations at a level of t^2 = 0.03-0.06. We have first complemented the already available optical observational datasets wi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.5599","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":"2026-05-18T01:51:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AdCeJEMLgjfDzRQR307IkbAMjB7oGdT1AnqZQOlddt9yT2r+kcHZB6ZB15DeXFPBZ9ISQTEfEqlVknjMVqx9Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T08:11:31.164602Z"},"content_sha256":"afc8c5a7ce0649694bacbd068258371a9f720b126eedc62dc09747629038c1ad","schema_version":"1.0","event_id":"sha256:afc8c5a7ce0649694bacbd068258371a9f720b126eedc62dc09747629038c1ad"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FT7E23STE6IUKEZB3WHV2TVRIY/bundle.json","state_url":"https://pith.science/pith/FT7E23STE6IUKEZB3WHV2TVRIY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FT7E23STE6IUKEZB3WHV2TVRIY/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":"2026-05-30T08:11:31Z","links":{"resolver":"https://pith.science/pith/FT7E23STE6IUKEZB3WHV2TVRIY","bundle":"https://pith.science/pith/FT7E23STE6IUKEZB3WHV2TVRIY/bundle.json","state":"https://pith.science/pith/FT7E23STE6IUKEZB3WHV2TVRIY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FT7E23STE6IUKEZB3WHV2TVRIY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:FT7E23STE6IUKEZB3WHV2TVRIY","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":"a5b32b0e966e0b5617d85c08b9bb8d8a33d9dc3ae61edc34eb33c5f7c8681825","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-01-23T18:48:46Z","title_canon_sha256":"01506eb50e03c8fc140fc2b699ffbd9de03620305396b266eab12042abd550bd"},"schema_version":"1.0","source":{"id":"1301.5599","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.5599","created_at":"2026-05-18T01:51:59Z"},{"alias_kind":"arxiv_version","alias_value":"1301.5599v1","created_at":"2026-05-18T01:51:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.5599","created_at":"2026-05-18T01:51:59Z"},{"alias_kind":"pith_short_12","alias_value":"FT7E23STE6IU","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"FT7E23STE6IUKEZB","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"FT7E23ST","created_at":"2026-05-18T12:27:45Z"}],"graph_snapshots":[{"event_id":"sha256:afc8c5a7ce0649694bacbd068258371a9f720b126eedc62dc09747629038c1ad","target":"graph","created_at":"2026-05-18T01:51:59Z","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":"While collisionally excited lines in HII regions allow one to easily probe the chemical composition of the interstellar medium in galaxies, the possible presence of important temperature fluctuations casts some doubt on the derived abundances. To provide new insights into this question, we have carried out a detailed study of a giant HII region, H 1013, located in the galaxy M101, for which many observational data exist and which has been claimed to harbour temperature fluctuations at a level of t^2 = 0.03-0.06. We have first complemented the already available optical observational datasets wi","authors_text":"B. Brandl, C. Morisset, D. Schaerer, F. Bresolin, G. Stasinska, S. Simon-Diaz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-01-23T18:48:46Z","title":"No temperature fluctuations in the giant HII region H 1013"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.5599","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:a5ca6487c5158c06fb5cd8fcf1bdac91aad9f3fb7e8cd6a162321cafd9a9f6b4","target":"record","created_at":"2026-05-18T01:51:59Z","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":"a5b32b0e966e0b5617d85c08b9bb8d8a33d9dc3ae61edc34eb33c5f7c8681825","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-01-23T18:48:46Z","title_canon_sha256":"01506eb50e03c8fc140fc2b699ffbd9de03620305396b266eab12042abd550bd"},"schema_version":"1.0","source":{"id":"1301.5599","kind":"arxiv","version":1}},"canonical_sha256":"2cfe4d6e532791451321dd8f5d4eb14616708f6dfb4895ea69e79397e6533de3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2cfe4d6e532791451321dd8f5d4eb14616708f6dfb4895ea69e79397e6533de3","first_computed_at":"2026-05-18T01:51:59.309136Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:51:59.309136Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gQsRBQlFXjIFwuS+yfFhNkgk5+viDrCCYWTa6F8QaQ1kE/q54RM1nN7S7hddM9AqfYJcKf4jjh34y6rDJ9k9DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:51:59.309593Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.5599","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a5ca6487c5158c06fb5cd8fcf1bdac91aad9f3fb7e8cd6a162321cafd9a9f6b4","sha256:afc8c5a7ce0649694bacbd068258371a9f720b126eedc62dc09747629038c1ad"],"state_sha256":"12242d95c694caf1d86225f382f207801d7e6698827261646352e367a57544ab"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AA6/GOZNCKobPXdfKX9Pz4tZgL3QHaqEe5edqzjvXd2u2ULLJGfRROAxJg8cegLdb4LlPnXLyMwlSOOR71MiAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T08:11:31.168394Z","bundle_sha256":"abcede2a422d81b65d172bc266077eab271188c8707ef7c95e8da417d9cf7fb6"}}