{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:WP4UECAAMTWS4U6HVRRNHWMAFT","short_pith_number":"pith:WP4UECAA","canonical_record":{"source":{"id":"0910.0643","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-10-04T21:25:55Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"ad10bc619b17e44cf186ee2056adf13e097b43cd569aa51446fe3b7c1abe7061","abstract_canon_sha256":"8a07aa03d54f02990a9764755f038989a01b703daf1bcf1082ecd7ef44760e7c"},"schema_version":"1.0"},"canonical_sha256":"b3f942080064ed2e53c7ac62d3d9802cf72db529a9b59357edc008c3ce7bbb32","source":{"kind":"arxiv","id":"0910.0643","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.0643","created_at":"2026-07-04T15:53:39Z"},{"alias_kind":"arxiv_version","alias_value":"0910.0643v1","created_at":"2026-07-04T15:53:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.0643","created_at":"2026-07-04T15:53:39Z"},{"alias_kind":"pith_short_12","alias_value":"WP4UECAAMTWS","created_at":"2026-07-04T15:53:39Z"},{"alias_kind":"pith_short_16","alias_value":"WP4UECAAMTWS4U6H","created_at":"2026-07-04T15:53:39Z"},{"alias_kind":"pith_short_8","alias_value":"WP4UECAA","created_at":"2026-07-04T15:53:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:WP4UECAAMTWS4U6HVRRNHWMAFT","target":"record","payload":{"canonical_record":{"source":{"id":"0910.0643","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-10-04T21:25:55Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"ad10bc619b17e44cf186ee2056adf13e097b43cd569aa51446fe3b7c1abe7061","abstract_canon_sha256":"8a07aa03d54f02990a9764755f038989a01b703daf1bcf1082ecd7ef44760e7c"},"schema_version":"1.0"},"canonical_sha256":"b3f942080064ed2e53c7ac62d3d9802cf72db529a9b59357edc008c3ce7bbb32","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:53:39.086742Z","signature_b64":"Aansl1nTvzeBo17xeoJ5ie21xRG1KLoGEK9X+cMY9+7jY532HyukpNSaqSERfBlCmosIIXoN9eZ0ARPzPTHGCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b3f942080064ed2e53c7ac62d3d9802cf72db529a9b59357edc008c3ce7bbb32","last_reissued_at":"2026-07-04T15:53:39.086374Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:53:39.086374Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0910.0643","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":"2026-07-04T15:53:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BwBnfMOddmHjy1xeQzj17nhdjGqbDM3cICBHTp7q4RPtSwl1U4vIpjP1Leh4lsLtcMpgaJvL9B2/rfrbEkYDBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T13:30:08.291895Z"},"content_sha256":"e2c5da38d3546c654d0c24f681c0bedf2b89df987be7a38c39758211fc827ba6","schema_version":"1.0","event_id":"sha256:e2c5da38d3546c654d0c24f681c0bedf2b89df987be7a38c39758211fc827ba6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:WP4UECAAMTWS4U6HVRRNHWMAFT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"AGN astrophysics via multi-frequency monitoring of gamma-ray blazars in the Fermi-GST era","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"A. C. S. Readhead, E. Angelakis, H. Ungerechts, I. Nestoras, J. A. Zensus, J. L. Richards, L. Fuhrmann, M. A. Stevenson, N. Marchili, T. J. Pearson, T. P. Krichbaum, V. Pavlidou, W. Max-Moerbeck","submitted_at":"2009-10-04T21:25:55Z","abstract_excerpt":"The F-GAMMA-project is the coordinated effort of several observatories to understand the AGN phenomenon and specifically blazars via multi-frequency monitoring in collaboration with the {\\sl Fermi}-GST satellite since January 2007. The core observatories are: the Effelsberg 100-m, the IRAM 30-m and the OVRO 40-m telescope covering the range between 2.6 and 270 GHz. Effelsberg and IRAM stations do a monthly monitoring of the cm to sub-mm radio spectra of 60 selected blazars whereas the OVRO telescope is observing roughly 1200 objects at 15 GHz with a dense sampling of 2 points per week. The cal"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.0643","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/0910.0643/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":"2026-07-04T15:53:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KyOvNEsqGTA4km4RNq6JDQvFKvx+7omjI+W1VCabZX6+n1xZOkYkIFgSLKGUlMLQbNVuOSBmSnyEImrWLIwsCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T13:30:08.292278Z"},"content_sha256":"01da67534c891cfb8adddde413a4f7c82feb061746ccc22b989a524ba92e3013","schema_version":"1.0","event_id":"sha256:01da67534c891cfb8adddde413a4f7c82feb061746ccc22b989a524ba92e3013"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WP4UECAAMTWS4U6HVRRNHWMAFT/bundle.json","state_url":"https://pith.science/pith/WP4UECAAMTWS4U6HVRRNHWMAFT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WP4UECAAMTWS4U6HVRRNHWMAFT/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":"2026-07-07T13:30:08Z","links":{"resolver":"https://pith.science/pith/WP4UECAAMTWS4U6HVRRNHWMAFT","bundle":"https://pith.science/pith/WP4UECAAMTWS4U6HVRRNHWMAFT/bundle.json","state":"https://pith.science/pith/WP4UECAAMTWS4U6HVRRNHWMAFT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WP4UECAAMTWS4U6HVRRNHWMAFT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:WP4UECAAMTWS4U6HVRRNHWMAFT","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":"8a07aa03d54f02990a9764755f038989a01b703daf1bcf1082ecd7ef44760e7c","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-10-04T21:25:55Z","title_canon_sha256":"ad10bc619b17e44cf186ee2056adf13e097b43cd569aa51446fe3b7c1abe7061"},"schema_version":"1.0","source":{"id":"0910.0643","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.0643","created_at":"2026-07-04T15:53:39Z"},{"alias_kind":"arxiv_version","alias_value":"0910.0643v1","created_at":"2026-07-04T15:53:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.0643","created_at":"2026-07-04T15:53:39Z"},{"alias_kind":"pith_short_12","alias_value":"WP4UECAAMTWS","created_at":"2026-07-04T15:53:39Z"},{"alias_kind":"pith_short_16","alias_value":"WP4UECAAMTWS4U6H","created_at":"2026-07-04T15:53:39Z"},{"alias_kind":"pith_short_8","alias_value":"WP4UECAA","created_at":"2026-07-04T15:53:39Z"}],"graph_snapshots":[{"event_id":"sha256:01da67534c891cfb8adddde413a4f7c82feb061746ccc22b989a524ba92e3013","target":"graph","created_at":"2026-07-04T15:53:39Z","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/0910.0643/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The F-GAMMA-project is the coordinated effort of several observatories to understand the AGN phenomenon and specifically blazars via multi-frequency monitoring in collaboration with the {\\sl Fermi}-GST satellite since January 2007. The core observatories are: the Effelsberg 100-m, the IRAM 30-m and the OVRO 40-m telescope covering the range between 2.6 and 270 GHz. Effelsberg and IRAM stations do a monthly monitoring of the cm to sub-mm radio spectra of 60 selected blazars whereas the OVRO telescope is observing roughly 1200 objects at 15 GHz with a dense sampling of 2 points per week. The cal","authors_text":"A. C. S. Readhead, E. Angelakis, H. Ungerechts, I. Nestoras, J. A. Zensus, J. L. Richards, L. Fuhrmann, M. A. Stevenson, N. Marchili, T. J. Pearson, T. P. Krichbaum, V. Pavlidou, W. Max-Moerbeck","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-10-04T21:25:55Z","title":"AGN astrophysics via multi-frequency monitoring of gamma-ray blazars in the Fermi-GST era"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.0643","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:e2c5da38d3546c654d0c24f681c0bedf2b89df987be7a38c39758211fc827ba6","target":"record","created_at":"2026-07-04T15:53:39Z","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":"8a07aa03d54f02990a9764755f038989a01b703daf1bcf1082ecd7ef44760e7c","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-10-04T21:25:55Z","title_canon_sha256":"ad10bc619b17e44cf186ee2056adf13e097b43cd569aa51446fe3b7c1abe7061"},"schema_version":"1.0","source":{"id":"0910.0643","kind":"arxiv","version":1}},"canonical_sha256":"b3f942080064ed2e53c7ac62d3d9802cf72db529a9b59357edc008c3ce7bbb32","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b3f942080064ed2e53c7ac62d3d9802cf72db529a9b59357edc008c3ce7bbb32","first_computed_at":"2026-07-04T15:53:39.086374Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:53:39.086374Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Aansl1nTvzeBo17xeoJ5ie21xRG1KLoGEK9X+cMY9+7jY532HyukpNSaqSERfBlCmosIIXoN9eZ0ARPzPTHGCw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:53:39.086742Z","signed_message":"canonical_sha256_bytes"},"source_id":"0910.0643","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e2c5da38d3546c654d0c24f681c0bedf2b89df987be7a38c39758211fc827ba6","sha256:01da67534c891cfb8adddde413a4f7c82feb061746ccc22b989a524ba92e3013"],"state_sha256":"d686f7b4676b0d91bb62207df04d70776bb510770d49189a390776f4017f589f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3PlDAkCIHnhxeiXkhyvdvq/e0nSlZ2WJ0BsBtAopq61d8XHgQYVqpkH1wyOttOkxxlvO5jbRmYogo/g7ppM7Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T13:30:08.294204Z","bundle_sha256":"fdbc8b82c96a9fb6687a079bf5d489c6d8611c05b125a6cb6f62e273c47a45f7"}}