{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:ZJ7HS6T2PQQOPM4V5CQE6BXIDX","short_pith_number":"pith:ZJ7HS6T2","canonical_record":{"source":{"id":"astro-ph/0702374","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-02-14T10:49:16Z","cross_cats_sorted":[],"title_canon_sha256":"38ea92b8346afdfd74572f9ed706a3136d2dd4b9274f37294612f223e53b5c9d","abstract_canon_sha256":"6c7e6bdb2d48c055e4e82d385d785408be1f3d6d83165a92fc71bd34d0b13711"},"schema_version":"1.0"},"canonical_sha256":"ca7e797a7a7c20e7b395e8a04f06e81de10e447ccb90c205dabd861efef0cdd8","source":{"kind":"arxiv","id":"astro-ph/0702374","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0702374","created_at":"2026-05-18T01:09:21Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0702374v1","created_at":"2026-05-18T01:09:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0702374","created_at":"2026-05-18T01:09:21Z"},{"alias_kind":"pith_short_12","alias_value":"ZJ7HS6T2PQQO","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"ZJ7HS6T2PQQOPM4V","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"ZJ7HS6T2","created_at":"2026-05-18T12:25:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:ZJ7HS6T2PQQOPM4V5CQE6BXIDX","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0702374","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-02-14T10:49:16Z","cross_cats_sorted":[],"title_canon_sha256":"38ea92b8346afdfd74572f9ed706a3136d2dd4b9274f37294612f223e53b5c9d","abstract_canon_sha256":"6c7e6bdb2d48c055e4e82d385d785408be1f3d6d83165a92fc71bd34d0b13711"},"schema_version":"1.0"},"canonical_sha256":"ca7e797a7a7c20e7b395e8a04f06e81de10e447ccb90c205dabd861efef0cdd8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:09:21.676631Z","signature_b64":"0DJQm01FlT7KFlpqBM4GrhSJz2kiHkqy8WI6qQaVhjYrB6KJDda9RbGi2nnBIzWkeDjbDBduGhaXmYIudt5WDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ca7e797a7a7c20e7b395e8a04f06e81de10e447ccb90c205dabd861efef0cdd8","last_reissued_at":"2026-05-18T01:09:21.676156Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:09:21.676156Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0702374","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":"2026-05-18T01:09:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NyeZ82lbeJ69p/oemVh0QfsQOi9oThLJBmX9Z/ac+OlNCR8TkzYV+HIJ8rMSkpbE3M6GlzOAe4Ni/g8oI4lwDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T17:37:21.667787Z"},"content_sha256":"e9dc0d0d4abc8dce5d65783e121ac9aae781db3fe1a8e2a58355b15822548b6f","schema_version":"1.0","event_id":"sha256:e9dc0d0d4abc8dce5d65783e121ac9aae781db3fe1a8e2a58355b15822548b6f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:ZJ7HS6T2PQQOPM4V5CQE6BXIDX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A compact dust shell in the symbiotic system HM Sge","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Martin Vannier (ESO), Olivier Chesneau (LG), Pierre Cruzal\\`ebes (LG), St\\'ephane Sacuto (LG)","submitted_at":"2007-02-14T10:49:16Z","abstract_excerpt":"We present high spatial resolution observations of the mid-infrared core of the dusty symbiotic system HM Sge. The MIDI interferometer was used with the VLT UTs and ATs providing baselines oriented from PA=42&deg; to 105&deg;. The MIDI visibilities are compared with the ones predicted in the frame of various spherical dust shells published in the literature involving single or double dusty shells. The mid-IR environment is unresolved by a 8m telescope and the MIDI spectrum exhibits a level similar to the ISO spectra recorded 10 yr ago. The estimated Gaussian HWHM of the shell of 12AU in the 8-"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0702374","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":"2026-05-18T01:09:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+e4ynHfy3IleHlLVK4We5dZFAgSWIW0fmgXWZNjzejk+G3gICfz6lLlAAhrY6mtmqfYG+kzjhr+suXOJ6VS/Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T17:37:21.668122Z"},"content_sha256":"c3834274f0ddc236caea1b695adf31d142f5ccc1ca9a4932098905f138d253c0","schema_version":"1.0","event_id":"sha256:c3834274f0ddc236caea1b695adf31d142f5ccc1ca9a4932098905f138d253c0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZJ7HS6T2PQQOPM4V5CQE6BXIDX/bundle.json","state_url":"https://pith.science/pith/ZJ7HS6T2PQQOPM4V5CQE6BXIDX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZJ7HS6T2PQQOPM4V5CQE6BXIDX/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":"2026-06-01T17:37:21Z","links":{"resolver":"https://pith.science/pith/ZJ7HS6T2PQQOPM4V5CQE6BXIDX","bundle":"https://pith.science/pith/ZJ7HS6T2PQQOPM4V5CQE6BXIDX/bundle.json","state":"https://pith.science/pith/ZJ7HS6T2PQQOPM4V5CQE6BXIDX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZJ7HS6T2PQQOPM4V5CQE6BXIDX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:ZJ7HS6T2PQQOPM4V5CQE6BXIDX","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":"6c7e6bdb2d48c055e4e82d385d785408be1f3d6d83165a92fc71bd34d0b13711","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-02-14T10:49:16Z","title_canon_sha256":"38ea92b8346afdfd74572f9ed706a3136d2dd4b9274f37294612f223e53b5c9d"},"schema_version":"1.0","source":{"id":"astro-ph/0702374","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0702374","created_at":"2026-05-18T01:09:21Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0702374v1","created_at":"2026-05-18T01:09:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0702374","created_at":"2026-05-18T01:09:21Z"},{"alias_kind":"pith_short_12","alias_value":"ZJ7HS6T2PQQO","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"ZJ7HS6T2PQQOPM4V","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"ZJ7HS6T2","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:c3834274f0ddc236caea1b695adf31d142f5ccc1ca9a4932098905f138d253c0","target":"graph","created_at":"2026-05-18T01:09:21Z","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":"We present high spatial resolution observations of the mid-infrared core of the dusty symbiotic system HM Sge. The MIDI interferometer was used with the VLT UTs and ATs providing baselines oriented from PA=42&deg; to 105&deg;. The MIDI visibilities are compared with the ones predicted in the frame of various spherical dust shells published in the literature involving single or double dusty shells. The mid-IR environment is unresolved by a 8m telescope and the MIDI spectrum exhibits a level similar to the ISO spectra recorded 10 yr ago. The estimated Gaussian HWHM of the shell of 12AU in the 8-","authors_text":"Martin Vannier (ESO), Olivier Chesneau (LG), Pierre Cruzal\\`ebes (LG), St\\'ephane Sacuto (LG)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-02-14T10:49:16Z","title":"A compact dust shell in the symbiotic system HM Sge"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0702374","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:e9dc0d0d4abc8dce5d65783e121ac9aae781db3fe1a8e2a58355b15822548b6f","target":"record","created_at":"2026-05-18T01:09:21Z","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":"6c7e6bdb2d48c055e4e82d385d785408be1f3d6d83165a92fc71bd34d0b13711","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-02-14T10:49:16Z","title_canon_sha256":"38ea92b8346afdfd74572f9ed706a3136d2dd4b9274f37294612f223e53b5c9d"},"schema_version":"1.0","source":{"id":"astro-ph/0702374","kind":"arxiv","version":1}},"canonical_sha256":"ca7e797a7a7c20e7b395e8a04f06e81de10e447ccb90c205dabd861efef0cdd8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ca7e797a7a7c20e7b395e8a04f06e81de10e447ccb90c205dabd861efef0cdd8","first_computed_at":"2026-05-18T01:09:21.676156Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:09:21.676156Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0DJQm01FlT7KFlpqBM4GrhSJz2kiHkqy8WI6qQaVhjYrB6KJDda9RbGi2nnBIzWkeDjbDBduGhaXmYIudt5WDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:09:21.676631Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0702374","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e9dc0d0d4abc8dce5d65783e121ac9aae781db3fe1a8e2a58355b15822548b6f","sha256:c3834274f0ddc236caea1b695adf31d142f5ccc1ca9a4932098905f138d253c0"],"state_sha256":"eabc793c1ad28011d2ddc1cb45c4e7434c11cbd6cb556e992adfc5d987ef72cc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DJJLCAs9rcFN4eAJuj6LlVucZNU5DPhmH478reZ0LywU6xvxbqeO4j2EKp6punVZcYrfFqeN3wChmQTMZnfmBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T17:37:21.669920Z","bundle_sha256":"3e1f74010151dc5a90b759d1e3cbf41d8aa11288674cf1bc36e13c50fe6e7728"}}