{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:ZBNN7NDPWOU5YYFU7FX6TWKFKT","short_pith_number":"pith:ZBNN7NDP","canonical_record":{"source":{"id":"2002.00908","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-02-03T17:38:07Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"ce15830752e7a29546134d5596d71ba9e8e5fbc64a9b7effc91cda5a8e09fa75","abstract_canon_sha256":"1f2cf67308391443ef2224a9b5e1158c52479284f2428f7c3f5290432c7c3613"},"schema_version":"1.0"},"canonical_sha256":"c85adfb46fb3a9dc60b4f96fe9d94554c34065a0fc74bd49082a0ca660954d26","source":{"kind":"arxiv","id":"2002.00908","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.00908","created_at":"2026-07-05T00:37:58Z"},{"alias_kind":"arxiv_version","alias_value":"2002.00908v1","created_at":"2026-07-05T00:37:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.00908","created_at":"2026-07-05T00:37:58Z"},{"alias_kind":"pith_short_12","alias_value":"ZBNN7NDPWOU5","created_at":"2026-07-05T00:37:58Z"},{"alias_kind":"pith_short_16","alias_value":"ZBNN7NDPWOU5YYFU","created_at":"2026-07-05T00:37:58Z"},{"alias_kind":"pith_short_8","alias_value":"ZBNN7NDP","created_at":"2026-07-05T00:37:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:ZBNN7NDPWOU5YYFU7FX6TWKFKT","target":"record","payload":{"canonical_record":{"source":{"id":"2002.00908","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-02-03T17:38:07Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"ce15830752e7a29546134d5596d71ba9e8e5fbc64a9b7effc91cda5a8e09fa75","abstract_canon_sha256":"1f2cf67308391443ef2224a9b5e1158c52479284f2428f7c3f5290432c7c3613"},"schema_version":"1.0"},"canonical_sha256":"c85adfb46fb3a9dc60b4f96fe9d94554c34065a0fc74bd49082a0ca660954d26","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:37:58.634647Z","signature_b64":"XNOR6J783KfQH2lsYmd2gcpdY+1LFHZaBznE6Sc3ebtLOVewWpG5gEC5zNayp2p3Lm5q30WdHxMlWQl+5I1sCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c85adfb46fb3a9dc60b4f96fe9d94554c34065a0fc74bd49082a0ca660954d26","last_reissued_at":"2026-07-05T00:37:58.634191Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:37:58.634191Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2002.00908","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":"2026-07-05T00:37:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NJQ3lYn/ANDNDzRhpV5LgQhGX48MESVkf71TcsHtjEJPayjPdHm9fmXMM99djzGHrcjMbRsP8OcOIa6j37WTBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T08:14:14.877571Z"},"content_sha256":"c41017f00990dfcd6f0241b89e23eac5357ed4d87b7f9eadc1f704275dab17c0","schema_version":"1.0","event_id":"sha256:c41017f00990dfcd6f0241b89e23eac5357ed4d87b7f9eadc1f704275dab17c0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:ZBNN7NDPWOU5YYFU7FX6TWKFKT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Infrared properties of Planetary Nebulae with [WR] and $wels$ central stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"C. Muthumariappan, M. Parthasarathy","submitted_at":"2020-02-03T17:38:07Z","abstract_excerpt":"We report the IR properties of planetary nebulae with WR type and $wels$ central stars known to date and compare them with the IR properties of a sample of PNe with H-rich central stars. We use near-, mid- and far-IR photometric data from archives to derive the IR properties of PNe. We have constructed IR colour-colour diagrams of PNe using measurements from $2MASS$, $IRAS$, $WISE$ and $Akari$ bands. [WR] PNe have a larger near-IR emission from the hot dust component and also show a tendency for stronger 12$\\mu$m emission as compared to the other two groups. Cool AGB dust properties of all PNe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.00908","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2002.00908/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T00:37:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OkTXfmdmUsziHbS1bqE704YFV42v0PuyIbhlGpNnFZ7WMReQk2FxDvQzUqRrfp4lqXat9cieqlhH05pSkdT9Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T08:14:14.878168Z"},"content_sha256":"7854efe2b54b4fdc2a6efd8a7f0f0a489b2b499b50f48b19b32b19a535b20a4f","schema_version":"1.0","event_id":"sha256:7854efe2b54b4fdc2a6efd8a7f0f0a489b2b499b50f48b19b32b19a535b20a4f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZBNN7NDPWOU5YYFU7FX6TWKFKT/bundle.json","state_url":"https://pith.science/pith/ZBNN7NDPWOU5YYFU7FX6TWKFKT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZBNN7NDPWOU5YYFU7FX6TWKFKT/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":"2026-08-05T08:14:14Z","links":{"resolver":"https://pith.science/pith/ZBNN7NDPWOU5YYFU7FX6TWKFKT","bundle":"https://pith.science/pith/ZBNN7NDPWOU5YYFU7FX6TWKFKT/bundle.json","state":"https://pith.science/pith/ZBNN7NDPWOU5YYFU7FX6TWKFKT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZBNN7NDPWOU5YYFU7FX6TWKFKT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:ZBNN7NDPWOU5YYFU7FX6TWKFKT","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":"1f2cf67308391443ef2224a9b5e1158c52479284f2428f7c3f5290432c7c3613","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-02-03T17:38:07Z","title_canon_sha256":"ce15830752e7a29546134d5596d71ba9e8e5fbc64a9b7effc91cda5a8e09fa75"},"schema_version":"1.0","source":{"id":"2002.00908","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.00908","created_at":"2026-07-05T00:37:58Z"},{"alias_kind":"arxiv_version","alias_value":"2002.00908v1","created_at":"2026-07-05T00:37:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.00908","created_at":"2026-07-05T00:37:58Z"},{"alias_kind":"pith_short_12","alias_value":"ZBNN7NDPWOU5","created_at":"2026-07-05T00:37:58Z"},{"alias_kind":"pith_short_16","alias_value":"ZBNN7NDPWOU5YYFU","created_at":"2026-07-05T00:37:58Z"},{"alias_kind":"pith_short_8","alias_value":"ZBNN7NDP","created_at":"2026-07-05T00:37:58Z"}],"graph_snapshots":[{"event_id":"sha256:7854efe2b54b4fdc2a6efd8a7f0f0a489b2b499b50f48b19b32b19a535b20a4f","target":"graph","created_at":"2026-07-05T00:37:58Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2002.00908/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report the IR properties of planetary nebulae with WR type and $wels$ central stars known to date and compare them with the IR properties of a sample of PNe with H-rich central stars. We use near-, mid- and far-IR photometric data from archives to derive the IR properties of PNe. We have constructed IR colour-colour diagrams of PNe using measurements from $2MASS$, $IRAS$, $WISE$ and $Akari$ bands. [WR] PNe have a larger near-IR emission from the hot dust component and also show a tendency for stronger 12$\\mu$m emission as compared to the other two groups. Cool AGB dust properties of all PNe","authors_text":"C. Muthumariappan, M. Parthasarathy","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-02-03T17:38:07Z","title":"Infrared properties of Planetary Nebulae with [WR] and $wels$ central stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.00908","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:c41017f00990dfcd6f0241b89e23eac5357ed4d87b7f9eadc1f704275dab17c0","target":"record","created_at":"2026-07-05T00:37:58Z","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":"1f2cf67308391443ef2224a9b5e1158c52479284f2428f7c3f5290432c7c3613","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-02-03T17:38:07Z","title_canon_sha256":"ce15830752e7a29546134d5596d71ba9e8e5fbc64a9b7effc91cda5a8e09fa75"},"schema_version":"1.0","source":{"id":"2002.00908","kind":"arxiv","version":1}},"canonical_sha256":"c85adfb46fb3a9dc60b4f96fe9d94554c34065a0fc74bd49082a0ca660954d26","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c85adfb46fb3a9dc60b4f96fe9d94554c34065a0fc74bd49082a0ca660954d26","first_computed_at":"2026-07-05T00:37:58.634191Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:37:58.634191Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XNOR6J783KfQH2lsYmd2gcpdY+1LFHZaBznE6Sc3ebtLOVewWpG5gEC5zNayp2p3Lm5q30WdHxMlWQl+5I1sCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:37:58.634647Z","signed_message":"canonical_sha256_bytes"},"source_id":"2002.00908","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c41017f00990dfcd6f0241b89e23eac5357ed4d87b7f9eadc1f704275dab17c0","sha256:7854efe2b54b4fdc2a6efd8a7f0f0a489b2b499b50f48b19b32b19a535b20a4f"],"state_sha256":"6ca06b42fdde9709d6b8ef076033b4a56b6e76a789635a05e0e0cecadda256b6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nQgybeX4VtvG9CmsO0Zqb3eR9p+dwIu+mbhNFkuC2H8YOIwCccNgJCvJEovjQ1y+XTadgYxHQu+9df2mpXHrCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T08:14:14.883072Z","bundle_sha256":"1de84955efe79b5ae2ba9edb4cd895d15842e3f86ab46cc2cc1f1b44e5ae824d"}}