{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:RMWC5C7DTOTOUTPSRD2D242NYP","short_pith_number":"pith:RMWC5C7D","canonical_record":{"source":{"id":"0912.3107","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-16T11:56:00Z","cross_cats_sorted":[],"title_canon_sha256":"c9cd42ffa18c2a44bd5ecdf03101e33a5c7387e360b04f0f41198575f8486dca","abstract_canon_sha256":"e03a0f59dfc7f5bd9669fbfa240d6c68adf44ab4c98be998777298cfce9dcbe8"},"schema_version":"1.0"},"canonical_sha256":"8b2c2e8be39ba6ea4df288f43d734dc3ddf11dbe106f00cdf5e01c0e095bf4c7","source":{"kind":"arxiv","id":"0912.3107","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0912.3107","created_at":"2026-05-18T01:21:56Z"},{"alias_kind":"arxiv_version","alias_value":"0912.3107v1","created_at":"2026-05-18T01:21:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.3107","created_at":"2026-05-18T01:21:56Z"},{"alias_kind":"pith_short_12","alias_value":"RMWC5C7DTOTO","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"RMWC5C7DTOTOUTPS","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"RMWC5C7D","created_at":"2026-05-18T12:26:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:RMWC5C7DTOTOUTPSRD2D242NYP","target":"record","payload":{"canonical_record":{"source":{"id":"0912.3107","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-16T11:56:00Z","cross_cats_sorted":[],"title_canon_sha256":"c9cd42ffa18c2a44bd5ecdf03101e33a5c7387e360b04f0f41198575f8486dca","abstract_canon_sha256":"e03a0f59dfc7f5bd9669fbfa240d6c68adf44ab4c98be998777298cfce9dcbe8"},"schema_version":"1.0"},"canonical_sha256":"8b2c2e8be39ba6ea4df288f43d734dc3ddf11dbe106f00cdf5e01c0e095bf4c7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:21:56.233946Z","signature_b64":"ZDj2guNRxZOiW3GgzDDCvUMek4hQ7dQGcMajrumiLiL9rrl3GrgCP9HIKs4BWQKKDba2YrdYS+9jd+wnqZO9Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8b2c2e8be39ba6ea4df288f43d734dc3ddf11dbe106f00cdf5e01c0e095bf4c7","last_reissued_at":"2026-05-18T01:21:56.233270Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:21:56.233270Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0912.3107","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":"2026-05-18T01:21:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BT3ykO+v+b/LeVgC1VfXVk8VKFlH9Gnp5u3MT+oxdJsZCv79vxYymBERBVy1F+uI/GmBZuvGeKG0s0V8X1hhCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T18:03:16.821807Z"},"content_sha256":"5244a4a3c7e273af0d84a896f32ccc30fab802ae2d6937d4c2d0d8de7db81f60","schema_version":"1.0","event_id":"sha256:5244a4a3c7e273af0d84a896f32ccc30fab802ae2d6937d4c2d0d8de7db81f60"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:RMWC5C7DTOTOUTPSRD2D242NYP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Type II-P supernovae as standardised candles: improvements using near infrared data","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"(2) Universidad de Chile, (3) INAF-Osservatorio Astronomico di Padova), Andrea Pastorello (1), Filomena Bufano (3) ((1) Queen's University Belfast, Kate Maguire (1), Mario Hamuy (2), Rubina Kotak (1), Stephen J. Smartt (1)","submitted_at":"2009-12-16T11:56:00Z","abstract_excerpt":"We present the first near infrared Hubble diagram for type II-P supernovae to further explore their value as distance indicators. We use a modified version of the standardised candle method which relies on the tight correlation between the absolute magnitudes of type II-P supernovae and their expansion velocities during the plateau phase. Although our sample contains only 12 II-P supernovae and they are necessarily local (z < 0.02), we demonstrate using near infrared JHK photometry that it may be possible to reduce the scatter in the Hubble diagram to 0.1-0.15 magnitudes. While this is potenti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.3107","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":"2026-05-18T01:21:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pnems3sguKUPS2/GcL76q7leodoc2XwdSWscyqn9YOXBa6EFd9AVZDG1vUK4Ckgd9y6RorINweQFhsl0tV2xDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T18:03:16.822933Z"},"content_sha256":"69c9fa98b828783d2b82c2691191641097ffbf59fc643a407e597e248213a329","schema_version":"1.0","event_id":"sha256:69c9fa98b828783d2b82c2691191641097ffbf59fc643a407e597e248213a329"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RMWC5C7DTOTOUTPSRD2D242NYP/bundle.json","state_url":"https://pith.science/pith/RMWC5C7DTOTOUTPSRD2D242NYP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RMWC5C7DTOTOUTPSRD2D242NYP/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":"2026-05-21T18:03:16Z","links":{"resolver":"https://pith.science/pith/RMWC5C7DTOTOUTPSRD2D242NYP","bundle":"https://pith.science/pith/RMWC5C7DTOTOUTPSRD2D242NYP/bundle.json","state":"https://pith.science/pith/RMWC5C7DTOTOUTPSRD2D242NYP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RMWC5C7DTOTOUTPSRD2D242NYP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:RMWC5C7DTOTOUTPSRD2D242NYP","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":"e03a0f59dfc7f5bd9669fbfa240d6c68adf44ab4c98be998777298cfce9dcbe8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-16T11:56:00Z","title_canon_sha256":"c9cd42ffa18c2a44bd5ecdf03101e33a5c7387e360b04f0f41198575f8486dca"},"schema_version":"1.0","source":{"id":"0912.3107","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0912.3107","created_at":"2026-05-18T01:21:56Z"},{"alias_kind":"arxiv_version","alias_value":"0912.3107v1","created_at":"2026-05-18T01:21:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.3107","created_at":"2026-05-18T01:21:56Z"},{"alias_kind":"pith_short_12","alias_value":"RMWC5C7DTOTO","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"RMWC5C7DTOTOUTPS","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"RMWC5C7D","created_at":"2026-05-18T12:26:01Z"}],"graph_snapshots":[{"event_id":"sha256:69c9fa98b828783d2b82c2691191641097ffbf59fc643a407e597e248213a329","target":"graph","created_at":"2026-05-18T01:21:56Z","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 the first near infrared Hubble diagram for type II-P supernovae to further explore their value as distance indicators. We use a modified version of the standardised candle method which relies on the tight correlation between the absolute magnitudes of type II-P supernovae and their expansion velocities during the plateau phase. Although our sample contains only 12 II-P supernovae and they are necessarily local (z < 0.02), we demonstrate using near infrared JHK photometry that it may be possible to reduce the scatter in the Hubble diagram to 0.1-0.15 magnitudes. While this is potenti","authors_text":"(2) Universidad de Chile, (3) INAF-Osservatorio Astronomico di Padova), Andrea Pastorello (1), Filomena Bufano (3) ((1) Queen's University Belfast, Kate Maguire (1), Mario Hamuy (2), Rubina Kotak (1), Stephen J. Smartt (1)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-16T11:56:00Z","title":"Type II-P supernovae as standardised candles: improvements using near infrared data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.3107","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":"sha256:5244a4a3c7e273af0d84a896f32ccc30fab802ae2d6937d4c2d0d8de7db81f60","target":"record","created_at":"2026-05-18T01:21:56Z","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":"e03a0f59dfc7f5bd9669fbfa240d6c68adf44ab4c98be998777298cfce9dcbe8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-16T11:56:00Z","title_canon_sha256":"c9cd42ffa18c2a44bd5ecdf03101e33a5c7387e360b04f0f41198575f8486dca"},"schema_version":"1.0","source":{"id":"0912.3107","kind":"arxiv","version":1}},"canonical_sha256":"8b2c2e8be39ba6ea4df288f43d734dc3ddf11dbe106f00cdf5e01c0e095bf4c7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8b2c2e8be39ba6ea4df288f43d734dc3ddf11dbe106f00cdf5e01c0e095bf4c7","first_computed_at":"2026-05-18T01:21:56.233270Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:21:56.233270Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZDj2guNRxZOiW3GgzDDCvUMek4hQ7dQGcMajrumiLiL9rrl3GrgCP9HIKs4BWQKKDba2YrdYS+9jd+wnqZO9Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:21:56.233946Z","signed_message":"canonical_sha256_bytes"},"source_id":"0912.3107","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5244a4a3c7e273af0d84a896f32ccc30fab802ae2d6937d4c2d0d8de7db81f60","sha256:69c9fa98b828783d2b82c2691191641097ffbf59fc643a407e597e248213a329"],"state_sha256":"14c2873c36c56e96e671d5d092da131a997e8b4605e3ec5443ddfbfb99380157"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NUw7xp6BKlLeG1VCQqOnDHvjvtGhqlW//rvTkzb5DwDm3mi6779ksWuswL73vMGcZ73k+5xowukwG+Q8GhFMBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-21T18:03:16.825756Z","bundle_sha256":"27d8a6c8803b31679a66d8604b386f301ef4ac78cb01df24995f2432958a7bd3"}}