{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:VFOVVV6NKQEDGUYPWSEC2FKZ65","short_pith_number":"pith:VFOVVV6N","canonical_record":{"source":{"id":"1511.01767","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-11-05T14:59:01Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"8b062298fd20cb4f622ef703c5e25f5503267e04ad32e21c55df3fe44a77ae06","abstract_canon_sha256":"cd7559956dd8480d6beaf305abf5e3d9845808e4873fa192b3b20b1127a55920"},"schema_version":"1.0"},"canonical_sha256":"a95d5ad7cd540833530fb4882d1559f755d45d87b0bfdcf4157aadac322f4fd7","source":{"kind":"arxiv","id":"1511.01767","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.01767","created_at":"2026-05-18T01:11:32Z"},{"alias_kind":"arxiv_version","alias_value":"1511.01767v2","created_at":"2026-05-18T01:11:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.01767","created_at":"2026-05-18T01:11:32Z"},{"alias_kind":"pith_short_12","alias_value":"VFOVVV6NKQED","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"VFOVVV6NKQEDGUYP","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"VFOVVV6N","created_at":"2026-05-18T12:29:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:VFOVVV6NKQEDGUYPWSEC2FKZ65","target":"record","payload":{"canonical_record":{"source":{"id":"1511.01767","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-11-05T14:59:01Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"8b062298fd20cb4f622ef703c5e25f5503267e04ad32e21c55df3fe44a77ae06","abstract_canon_sha256":"cd7559956dd8480d6beaf305abf5e3d9845808e4873fa192b3b20b1127a55920"},"schema_version":"1.0"},"canonical_sha256":"a95d5ad7cd540833530fb4882d1559f755d45d87b0bfdcf4157aadac322f4fd7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:11:32.082990Z","signature_b64":"y9+7djCs8jrMhWxlaAz9/JH5e3UdulmBhIlTxceQECQPdlAetQrux7/7DriYYjRb28ZtPAzkcrP5+yAT0jMxAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a95d5ad7cd540833530fb4882d1559f755d45d87b0bfdcf4157aadac322f4fd7","last_reissued_at":"2026-05-18T01:11:32.082631Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:11:32.082631Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1511.01767","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:11:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MR5I4q4tO+nVGvlRvpVLygIqxSeODO1RRmnDAXsFKLeAcLIgmKiz6WsBtekqdfab/TK66NsTIouNbzfjqd2kBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T07:32:51.662453Z"},"content_sha256":"a989af3f20068d9cea3726421842c668ce167789807c7b7af6a398f9d8d064ac","schema_version":"1.0","event_id":"sha256:a989af3f20068d9cea3726421842c668ce167789807c7b7af6a398f9d8d064ac"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:VFOVVV6NKQEDGUYPWSEC2FKZ65","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A LOFAR census of non-recycled pulsars: average profiles, dispersion measures, flux densities, and spectra","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"A. Bilous, A. Karastergiou, A. Rowlinson, B. Stappers, C. Sobey, D. Michilli, E. Keane, H. Falcke, J. Broderick, J. Eisl\\\"offel, J. Hessels, J.-M. Grie{\\ss}meier, J. van Leeuwen, J. Verbiest, M. Bell, M. Kramer, M. Serylak, P. Weltevrede, P. Zarka, R. Breton, S. Cooper, S. Markoff, S. Os{\\l}owski, S. Sanidas, S. ter Veen, V. Kondratiev, V. Malofeev","submitted_at":"2015-11-05T14:59:01Z","abstract_excerpt":"We present first results from a LOFAR census of non-recycled pulsars. The census includes almost all such pulsars known (194 sources) at declinations ${\\rm Dec}> 8^\\circ$ and Galactic latitudes $|{\\rm Gb}| > 3^\\circ$, regardless of their expected flux densities and scattering times. Each pulsar was observed for $\\geq 20$ minutes in the contiguous frequency range of 110--188 MHz. Full-Stokes data were recorded. We present the dispersion measures, flux densities, and calibrated total intensity profiles for the 158 pulsars detected in the sample. The median uncertainty in census dispersion measur"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.01767","kind":"arxiv","version":2},"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":"2026-05-18T01:11:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8eSZtQsXCd4adDtxTmnQmpqvw9A/wZpUj1ZPHorCfd22g6qJ/9AmW+uabt6dpi9CWwe9pDGf4qiLH2FxNDZSDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T07:32:51.662811Z"},"content_sha256":"65501c8424c19d34ca4b436706c3bfb0659550704ccc07a8e2cacbed2da95abd","schema_version":"1.0","event_id":"sha256:65501c8424c19d34ca4b436706c3bfb0659550704ccc07a8e2cacbed2da95abd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VFOVVV6NKQEDGUYPWSEC2FKZ65/bundle.json","state_url":"https://pith.science/pith/VFOVVV6NKQEDGUYPWSEC2FKZ65/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VFOVVV6NKQEDGUYPWSEC2FKZ65/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":"2026-06-02T07:32:51Z","links":{"resolver":"https://pith.science/pith/VFOVVV6NKQEDGUYPWSEC2FKZ65","bundle":"https://pith.science/pith/VFOVVV6NKQEDGUYPWSEC2FKZ65/bundle.json","state":"https://pith.science/pith/VFOVVV6NKQEDGUYPWSEC2FKZ65/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VFOVVV6NKQEDGUYPWSEC2FKZ65/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:VFOVVV6NKQEDGUYPWSEC2FKZ65","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":"cd7559956dd8480d6beaf305abf5e3d9845808e4873fa192b3b20b1127a55920","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-11-05T14:59:01Z","title_canon_sha256":"8b062298fd20cb4f622ef703c5e25f5503267e04ad32e21c55df3fe44a77ae06"},"schema_version":"1.0","source":{"id":"1511.01767","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.01767","created_at":"2026-05-18T01:11:32Z"},{"alias_kind":"arxiv_version","alias_value":"1511.01767v2","created_at":"2026-05-18T01:11:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.01767","created_at":"2026-05-18T01:11:32Z"},{"alias_kind":"pith_short_12","alias_value":"VFOVVV6NKQED","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"VFOVVV6NKQEDGUYP","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"VFOVVV6N","created_at":"2026-05-18T12:29:44Z"}],"graph_snapshots":[{"event_id":"sha256:65501c8424c19d34ca4b436706c3bfb0659550704ccc07a8e2cacbed2da95abd","target":"graph","created_at":"2026-05-18T01:11:32Z","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 first results from a LOFAR census of non-recycled pulsars. The census includes almost all such pulsars known (194 sources) at declinations ${\\rm Dec}> 8^\\circ$ and Galactic latitudes $|{\\rm Gb}| > 3^\\circ$, regardless of their expected flux densities and scattering times. Each pulsar was observed for $\\geq 20$ minutes in the contiguous frequency range of 110--188 MHz. Full-Stokes data were recorded. We present the dispersion measures, flux densities, and calibrated total intensity profiles for the 158 pulsars detected in the sample. The median uncertainty in census dispersion measur","authors_text":"A. Bilous, A. Karastergiou, A. Rowlinson, B. Stappers, C. Sobey, D. Michilli, E. Keane, H. Falcke, J. Broderick, J. Eisl\\\"offel, J. Hessels, J.-M. Grie{\\ss}meier, J. van Leeuwen, J. Verbiest, M. Bell, M. Kramer, M. Serylak, P. Weltevrede, P. Zarka, R. Breton, S. Cooper, S. Markoff, S. Os{\\l}owski, S. Sanidas, S. ter Veen, V. Kondratiev, V. Malofeev","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-11-05T14:59:01Z","title":"A LOFAR census of non-recycled pulsars: average profiles, dispersion measures, flux densities, and spectra"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.01767","kind":"arxiv","version":2},"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:a989af3f20068d9cea3726421842c668ce167789807c7b7af6a398f9d8d064ac","target":"record","created_at":"2026-05-18T01:11:32Z","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":"cd7559956dd8480d6beaf305abf5e3d9845808e4873fa192b3b20b1127a55920","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-11-05T14:59:01Z","title_canon_sha256":"8b062298fd20cb4f622ef703c5e25f5503267e04ad32e21c55df3fe44a77ae06"},"schema_version":"1.0","source":{"id":"1511.01767","kind":"arxiv","version":2}},"canonical_sha256":"a95d5ad7cd540833530fb4882d1559f755d45d87b0bfdcf4157aadac322f4fd7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a95d5ad7cd540833530fb4882d1559f755d45d87b0bfdcf4157aadac322f4fd7","first_computed_at":"2026-05-18T01:11:32.082631Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:11:32.082631Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"y9+7djCs8jrMhWxlaAz9/JH5e3UdulmBhIlTxceQECQPdlAetQrux7/7DriYYjRb28ZtPAzkcrP5+yAT0jMxAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:11:32.082990Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.01767","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a989af3f20068d9cea3726421842c668ce167789807c7b7af6a398f9d8d064ac","sha256:65501c8424c19d34ca4b436706c3bfb0659550704ccc07a8e2cacbed2da95abd"],"state_sha256":"c0c9a6b160e14c4703df4c7dedcfaff81c8a0cdd6fb47f8a87dc6bb6ff561633"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GOF21THqzpG3aKKESVfjdDznEugErtvdXwn4NaMMJ6Taq2kkeXLvLyl70RpAspoEgipyntFVfzNnd0ue3e1aDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T07:32:51.664890Z","bundle_sha256":"4afe5fb5c081ac40279e510768fb270f7aa90d532388840dc93720b28b4d2d6d"}}