{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:BWSOPK5NLBMQI44ZKL75AXQXFG","short_pith_number":"pith:BWSOPK5N","canonical_record":{"source":{"id":"astro-ph/0701355","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-01-11T22:22:22Z","cross_cats_sorted":[],"title_canon_sha256":"a5dc464c2fc2c35e92a0ccb12db40f06df6e613611da80073dec3db20ad7f195","abstract_canon_sha256":"5709a58596c7cc1f122d6dcd7e9747d2bed06b3d6208a109687e6f4971a8d169"},"schema_version":"1.0"},"canonical_sha256":"0da4e7abad585904739952ffd05e17299b9a5103424ff06990c787e5cad0008e","source":{"kind":"arxiv","id":"astro-ph/0701355","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0701355","created_at":"2026-05-18T04:29:07Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0701355v1","created_at":"2026-05-18T04:29:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0701355","created_at":"2026-05-18T04:29:07Z"},{"alias_kind":"pith_short_12","alias_value":"BWSOPK5NLBMQ","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"BWSOPK5NLBMQI44Z","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"BWSOPK5N","created_at":"2026-05-18T12:25:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:BWSOPK5NLBMQI44ZKL75AXQXFG","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0701355","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-01-11T22:22:22Z","cross_cats_sorted":[],"title_canon_sha256":"a5dc464c2fc2c35e92a0ccb12db40f06df6e613611da80073dec3db20ad7f195","abstract_canon_sha256":"5709a58596c7cc1f122d6dcd7e9747d2bed06b3d6208a109687e6f4971a8d169"},"schema_version":"1.0"},"canonical_sha256":"0da4e7abad585904739952ffd05e17299b9a5103424ff06990c787e5cad0008e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:29:07.362371Z","signature_b64":"1C5W8GB6hPLZTOg16AWdtQ33xpv6C3PG6wbULs6IgwybKS0ZAqxFktfvEIsxKJW2pmlSKiJY0hm7FZTlLPJDDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0da4e7abad585904739952ffd05e17299b9a5103424ff06990c787e5cad0008e","last_reissued_at":"2026-05-18T04:29:07.361926Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:29:07.361926Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0701355","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":"2026-05-18T04:29:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3ENeGV7DOl7Ckv0ouB849PQUIniiCX5CUKvU/B2z3cZOWlXll4E5MISPfJ5KIzVi09Mz3qd4GMLulyGutgvxAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T16:01:15.030933Z"},"content_sha256":"3fa1b7bd66cf2d0616915797c072b110ac3958e1588af674ce005219c8211031","schema_version":"1.0","event_id":"sha256:3fa1b7bd66cf2d0616915797c072b110ac3958e1588af674ce005219c8211031"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:BWSOPK5NLBMQI44ZKL75AXQXFG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Imaging Scattered Light from the Youngest Protostars in L1448: Signatures of Outflows","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"John J. Tobin, Lee G. Mundy, Leslie W. Looney, Murad Hamidouche, Woojin Kwon","submitted_at":"2007-01-11T22:22:22Z","abstract_excerpt":"We present deep IRAC images that highlight the scattered light emission around many of the youngest protostars, the so-called Class 0 sources, in L1448. By comparison of the data with a Monte Carlo radiative transfer code \\citep{whitney2003a}, we demonstrate for the first time that the observed infrared light from these objects is consistent with scattered light from the central protostar. The scattered light escapes out the cavity, carved by molecular outflows, in the circumstellar envelope. In particular, we observe prominent scattered light nebulae associated with the Class 0 sources: L1448"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0701355","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":"2026-05-18T04:29:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lagns5zti83GtQMPrps6AHrgy9PkXnGPdg43IRtZkk1RqrrSIlNDvFL4yAefZ0O1poqK3j6uEvViS1hrIbJcCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T16:01:15.031298Z"},"content_sha256":"8a988ca81873bb7c96bc26d5f5c220698499a8343009eec3244be307a2a340ff","schema_version":"1.0","event_id":"sha256:8a988ca81873bb7c96bc26d5f5c220698499a8343009eec3244be307a2a340ff"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BWSOPK5NLBMQI44ZKL75AXQXFG/bundle.json","state_url":"https://pith.science/pith/BWSOPK5NLBMQI44ZKL75AXQXFG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BWSOPK5NLBMQI44ZKL75AXQXFG/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":"2026-05-28T16:01:15Z","links":{"resolver":"https://pith.science/pith/BWSOPK5NLBMQI44ZKL75AXQXFG","bundle":"https://pith.science/pith/BWSOPK5NLBMQI44ZKL75AXQXFG/bundle.json","state":"https://pith.science/pith/BWSOPK5NLBMQI44ZKL75AXQXFG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BWSOPK5NLBMQI44ZKL75AXQXFG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:BWSOPK5NLBMQI44ZKL75AXQXFG","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":"5709a58596c7cc1f122d6dcd7e9747d2bed06b3d6208a109687e6f4971a8d169","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-01-11T22:22:22Z","title_canon_sha256":"a5dc464c2fc2c35e92a0ccb12db40f06df6e613611da80073dec3db20ad7f195"},"schema_version":"1.0","source":{"id":"astro-ph/0701355","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0701355","created_at":"2026-05-18T04:29:07Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0701355v1","created_at":"2026-05-18T04:29:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0701355","created_at":"2026-05-18T04:29:07Z"},{"alias_kind":"pith_short_12","alias_value":"BWSOPK5NLBMQ","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"BWSOPK5NLBMQI44Z","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"BWSOPK5N","created_at":"2026-05-18T12:25:55Z"}],"graph_snapshots":[{"event_id":"sha256:8a988ca81873bb7c96bc26d5f5c220698499a8343009eec3244be307a2a340ff","target":"graph","created_at":"2026-05-18T04:29:07Z","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 deep IRAC images that highlight the scattered light emission around many of the youngest protostars, the so-called Class 0 sources, in L1448. By comparison of the data with a Monte Carlo radiative transfer code \\citep{whitney2003a}, we demonstrate for the first time that the observed infrared light from these objects is consistent with scattered light from the central protostar. The scattered light escapes out the cavity, carved by molecular outflows, in the circumstellar envelope. In particular, we observe prominent scattered light nebulae associated with the Class 0 sources: L1448","authors_text":"John J. Tobin, Lee G. Mundy, Leslie W. Looney, Murad Hamidouche, Woojin Kwon","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-01-11T22:22:22Z","title":"Imaging Scattered Light from the Youngest Protostars in L1448: Signatures of Outflows"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0701355","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":"sha256:3fa1b7bd66cf2d0616915797c072b110ac3958e1588af674ce005219c8211031","target":"record","created_at":"2026-05-18T04:29:07Z","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":"5709a58596c7cc1f122d6dcd7e9747d2bed06b3d6208a109687e6f4971a8d169","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-01-11T22:22:22Z","title_canon_sha256":"a5dc464c2fc2c35e92a0ccb12db40f06df6e613611da80073dec3db20ad7f195"},"schema_version":"1.0","source":{"id":"astro-ph/0701355","kind":"arxiv","version":1}},"canonical_sha256":"0da4e7abad585904739952ffd05e17299b9a5103424ff06990c787e5cad0008e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0da4e7abad585904739952ffd05e17299b9a5103424ff06990c787e5cad0008e","first_computed_at":"2026-05-18T04:29:07.361926Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:29:07.361926Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1C5W8GB6hPLZTOg16AWdtQ33xpv6C3PG6wbULs6IgwybKS0ZAqxFktfvEIsxKJW2pmlSKiJY0hm7FZTlLPJDDw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:29:07.362371Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0701355","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3fa1b7bd66cf2d0616915797c072b110ac3958e1588af674ce005219c8211031","sha256:8a988ca81873bb7c96bc26d5f5c220698499a8343009eec3244be307a2a340ff"],"state_sha256":"aadf06d873de17066a3980a2c0074fbe9c6a60d78f178ac85cf0f114d090e1a0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9Gk0SAbCQxeV7qyaicawLM15iRFZdMy4SrZ8/AKhm4xNJnf9bz0Zf5QQDQ+0TR7N+xIMbXUJVKWDl85N0obPCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T16:01:15.034242Z","bundle_sha256":"97dd751f2687b7cb15980ee4d3860fa6031eb66a930f3336a6b81123bf9f4017"}}