{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:4GV5LBHJC4ACTZTYZ4ZY3V5TYK","short_pith_number":"pith:4GV5LBHJ","canonical_record":{"source":{"id":"2602.08959","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-02-09T17:56:45Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"57a8e5dc5aa7568e5a5c4a24497a29fd10958102472dfdd96fb142e54a889bc1","abstract_canon_sha256":"fe3a28651d2bab23082be0aa51813308cd7c5a13f9da997b776540dae3ebb316"},"schema_version":"1.0"},"canonical_sha256":"e1abd584e9170029e678cf338dd7b3c2a704e134ba88e5782d440151ad574cac","source":{"kind":"arxiv","id":"2602.08959","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.08959","created_at":"2026-06-19T16:10:35Z"},{"alias_kind":"arxiv_version","alias_value":"2602.08959v1","created_at":"2026-06-19T16:10:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.08959","created_at":"2026-06-19T16:10:35Z"},{"alias_kind":"pith_short_12","alias_value":"4GV5LBHJC4AC","created_at":"2026-06-19T16:10:35Z"},{"alias_kind":"pith_short_16","alias_value":"4GV5LBHJC4ACTZTY","created_at":"2026-06-19T16:10:35Z"},{"alias_kind":"pith_short_8","alias_value":"4GV5LBHJ","created_at":"2026-06-19T16:10:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:4GV5LBHJC4ACTZTYZ4ZY3V5TYK","target":"record","payload":{"canonical_record":{"source":{"id":"2602.08959","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-02-09T17:56:45Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"57a8e5dc5aa7568e5a5c4a24497a29fd10958102472dfdd96fb142e54a889bc1","abstract_canon_sha256":"fe3a28651d2bab23082be0aa51813308cd7c5a13f9da997b776540dae3ebb316"},"schema_version":"1.0"},"canonical_sha256":"e1abd584e9170029e678cf338dd7b3c2a704e134ba88e5782d440151ad574cac","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-19T16:10:35.071634Z","signature_b64":"Llkpu+tSf+K/rB02+q1bqn6jq/jwf61ThwEjrWpQqdEOfzzp6iEMwhHVQf040+FRGPiiGQvpXD9IqMeInFr4Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e1abd584e9170029e678cf338dd7b3c2a704e134ba88e5782d440151ad574cac","last_reissued_at":"2026-06-19T16:10:35.071160Z","signature_status":"signed_v1","first_computed_at":"2026-06-19T16:10:35.071160Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2602.08959","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":"2026-06-19T16:10:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kpH3Bz8f66VLPAB77+AgLfD61ZRlnOIjnV8n1OCbUQfASkmnzgCHNmpkZ+/AtpMNlYWv1NTiNXV5sc8cO9tXCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T03:16:05.116657Z"},"content_sha256":"c98070221138fced88ba5e836e6f0ff4f72b23add5317885e2d656acba43c46d","schema_version":"1.0","event_id":"sha256:c98070221138fced88ba5e836e6f0ff4f72b23add5317885e2d656acba43c46d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:4GV5LBHJC4ACTZTYZ4ZY3V5TYK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Is the nitrogen-rich source PN K4-47 a true planetary nebula?","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"David Jones, Denise R. Goncalves, Marcin Hajduk, Stavros Akras, Thomas Steinmetz, Tomasz Kaminski","submitted_at":"2026-02-09T17:56:45Z","abstract_excerpt":"PN K4-47 is a young planetary nebula that exhibits shock-excited bipolar lobes and a complex molecular environment, with the highest number of molecules detected within a planetary nebula. It has been questioned whether K4-47 is indeed a `typical' planetary nebula, or may be more exotic in nature. We examine this question using optical imaging and spectroscopy, and sub-millimetre and radio interferometry. Our observations spatially resolve the sub-millimetre environment of K4-47 for the first time. We find elongated CO (2-1) emission along a similar PA to the optical bipolar outflow. We derive"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.08959","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/2602.08959/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":"2026-06-19T16:10:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WsIDZx8N82mGnM4ASghk2j5kAgWFqow4pi2WsvWVVzERXKAez5vySsk47ekw41nRDP/XI6ZqVSKhG41ryGGpCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T03:16:05.117016Z"},"content_sha256":"37d9c6c9f0fb4bd83c15b260117338eef57eb552a694834a73b6b16be68d4c7a","schema_version":"1.0","event_id":"sha256:37d9c6c9f0fb4bd83c15b260117338eef57eb552a694834a73b6b16be68d4c7a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4GV5LBHJC4ACTZTYZ4ZY3V5TYK/bundle.json","state_url":"https://pith.science/pith/4GV5LBHJC4ACTZTYZ4ZY3V5TYK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4GV5LBHJC4ACTZTYZ4ZY3V5TYK/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":"2026-06-22T03:16:05Z","links":{"resolver":"https://pith.science/pith/4GV5LBHJC4ACTZTYZ4ZY3V5TYK","bundle":"https://pith.science/pith/4GV5LBHJC4ACTZTYZ4ZY3V5TYK/bundle.json","state":"https://pith.science/pith/4GV5LBHJC4ACTZTYZ4ZY3V5TYK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4GV5LBHJC4ACTZTYZ4ZY3V5TYK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:4GV5LBHJC4ACTZTYZ4ZY3V5TYK","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":"fe3a28651d2bab23082be0aa51813308cd7c5a13f9da997b776540dae3ebb316","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-02-09T17:56:45Z","title_canon_sha256":"57a8e5dc5aa7568e5a5c4a24497a29fd10958102472dfdd96fb142e54a889bc1"},"schema_version":"1.0","source":{"id":"2602.08959","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.08959","created_at":"2026-06-19T16:10:35Z"},{"alias_kind":"arxiv_version","alias_value":"2602.08959v1","created_at":"2026-06-19T16:10:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.08959","created_at":"2026-06-19T16:10:35Z"},{"alias_kind":"pith_short_12","alias_value":"4GV5LBHJC4AC","created_at":"2026-06-19T16:10:35Z"},{"alias_kind":"pith_short_16","alias_value":"4GV5LBHJC4ACTZTY","created_at":"2026-06-19T16:10:35Z"},{"alias_kind":"pith_short_8","alias_value":"4GV5LBHJ","created_at":"2026-06-19T16:10:35Z"}],"graph_snapshots":[{"event_id":"sha256:37d9c6c9f0fb4bd83c15b260117338eef57eb552a694834a73b6b16be68d4c7a","target":"graph","created_at":"2026-06-19T16:10:35Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2602.08959/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"PN K4-47 is a young planetary nebula that exhibits shock-excited bipolar lobes and a complex molecular environment, with the highest number of molecules detected within a planetary nebula. It has been questioned whether K4-47 is indeed a `typical' planetary nebula, or may be more exotic in nature. We examine this question using optical imaging and spectroscopy, and sub-millimetre and radio interferometry. Our observations spatially resolve the sub-millimetre environment of K4-47 for the first time. We find elongated CO (2-1) emission along a similar PA to the optical bipolar outflow. We derive","authors_text":"David Jones, Denise R. Goncalves, Marcin Hajduk, Stavros Akras, Thomas Steinmetz, Tomasz Kaminski","cross_cats":["astro-ph.GA"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-02-09T17:56:45Z","title":"Is the nitrogen-rich source PN K4-47 a true planetary nebula?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.08959","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:c98070221138fced88ba5e836e6f0ff4f72b23add5317885e2d656acba43c46d","target":"record","created_at":"2026-06-19T16:10:35Z","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":"fe3a28651d2bab23082be0aa51813308cd7c5a13f9da997b776540dae3ebb316","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-02-09T17:56:45Z","title_canon_sha256":"57a8e5dc5aa7568e5a5c4a24497a29fd10958102472dfdd96fb142e54a889bc1"},"schema_version":"1.0","source":{"id":"2602.08959","kind":"arxiv","version":1}},"canonical_sha256":"e1abd584e9170029e678cf338dd7b3c2a704e134ba88e5782d440151ad574cac","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e1abd584e9170029e678cf338dd7b3c2a704e134ba88e5782d440151ad574cac","first_computed_at":"2026-06-19T16:10:35.071160Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-19T16:10:35.071160Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Llkpu+tSf+K/rB02+q1bqn6jq/jwf61ThwEjrWpQqdEOfzzp6iEMwhHVQf040+FRGPiiGQvpXD9IqMeInFr4Dg==","signature_status":"signed_v1","signed_at":"2026-06-19T16:10:35.071634Z","signed_message":"canonical_sha256_bytes"},"source_id":"2602.08959","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c98070221138fced88ba5e836e6f0ff4f72b23add5317885e2d656acba43c46d","sha256:37d9c6c9f0fb4bd83c15b260117338eef57eb552a694834a73b6b16be68d4c7a"],"state_sha256":"b68caf53f5f63f0df9c18ff06d9080d8ca5e86e35a3563dcd8ece6c4f385fc8f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EYtGUtRqw/2gg2WnJVCD9xXaR+ruBp2hjV040q2fVSsd+6HvETSP4FizjEb153+CDJWYa2q6Q5ONSIHw77x+BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T03:16:05.118950Z","bundle_sha256":"26c7793e0454813e3652cf8b1a0cfb14867377831874e54e0705fa3fa978247c"}}