{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:IE7THALSCNRI2JLGGABPVLKLNU","short_pith_number":"pith:IE7THALS","canonical_record":{"source":{"id":"1602.02728","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-02-08T20:29:24Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"ad1bc5e89a208d06ee98e9aeb63e241ced79c26806638512f53394344031f421","abstract_canon_sha256":"6d9a104f28419b988ac552e6d48e4d00e4d03c71303eb92b7d2f861d62f0abfd"},"schema_version":"1.0"},"canonical_sha256":"413f33817213628d25663002faad4b6d26aceab17154238207d5955cf3538e34","source":{"kind":"arxiv","id":"1602.02728","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.02728","created_at":"2026-05-18T01:10:51Z"},{"alias_kind":"arxiv_version","alias_value":"1602.02728v1","created_at":"2026-05-18T01:10:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.02728","created_at":"2026-05-18T01:10:51Z"},{"alias_kind":"pith_short_12","alias_value":"IE7THALSCNRI","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_16","alias_value":"IE7THALSCNRI2JLG","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_8","alias_value":"IE7THALS","created_at":"2026-05-18T12:30:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:IE7THALSCNRI2JLGGABPVLKLNU","target":"record","payload":{"canonical_record":{"source":{"id":"1602.02728","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-02-08T20:29:24Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"ad1bc5e89a208d06ee98e9aeb63e241ced79c26806638512f53394344031f421","abstract_canon_sha256":"6d9a104f28419b988ac552e6d48e4d00e4d03c71303eb92b7d2f861d62f0abfd"},"schema_version":"1.0"},"canonical_sha256":"413f33817213628d25663002faad4b6d26aceab17154238207d5955cf3538e34","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:10:51.093950Z","signature_b64":"8qYTeP9I31L+LtU11dDoMlGGtDZh+imMzmuOreaE+l3hu7Msp3BXUthB7q7zsYouRXAZ00hY6TLxSI4zNZxpCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"413f33817213628d25663002faad4b6d26aceab17154238207d5955cf3538e34","last_reissued_at":"2026-05-18T01:10:51.093448Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:10:51.093448Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1602.02728","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":"2026-05-18T01:10:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"94HhPK7Z/aKw/cFwcfgtwwYJ74WDwwQKOfZaWRSW5ijLJFKa7ZunPtfk9eZ1n2M3JmjE7UR7Qs0VObZNYMnDAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T08:12:53.265915Z"},"content_sha256":"ed65dea36bc4392e51705714ccf8c4ab6d375fe5eec770ab3516b518bf1014d2","schema_version":"1.0","event_id":"sha256:ed65dea36bc4392e51705714ccf8c4ab6d375fe5eec770ab3516b518bf1014d2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:IE7THALSCNRI2JLGGABPVLKLNU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The future of gamma-ray astronomy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.IM","authors_text":"J\\\"urgen Kn\\\"odlseder","submitted_at":"2016-02-08T20:29:24Z","abstract_excerpt":"The field of gamma-ray astronomy has experienced impressive progress over the last decade. Thanks to the advent of a new generation of imaging air Cherenkov telescopes (H.E.S.S., MAGIC, VERITAS) and thanks to the launch of the Fermi-LAT satellite, several thousand gamma-ray sources are known today, revealing an unexpected ubiquity of particle acceleration processes in the Universe. Major scientific challenges are still ahead, such as the identification of the nature of Dark Matter, the discovery and understanding of the sources of cosmic rays, or the comprehension of the particle acceleration "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.02728","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":"2026-05-18T01:10:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UEpdNee8W2t1xb1+2L1ZWFEaIXowOpvoJvLkkAOcxbcwtz97DjEeKNJpl67hndgjQpJCuN3qsJ5AAsC1dXdeBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T08:12:53.266388Z"},"content_sha256":"6e8bc7ccc360422a6ff01ee3b008d7ca341a39ef47860018b4076ed632b32e68","schema_version":"1.0","event_id":"sha256:6e8bc7ccc360422a6ff01ee3b008d7ca341a39ef47860018b4076ed632b32e68"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IE7THALSCNRI2JLGGABPVLKLNU/bundle.json","state_url":"https://pith.science/pith/IE7THALSCNRI2JLGGABPVLKLNU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IE7THALSCNRI2JLGGABPVLKLNU/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":"2026-08-11T08:12:53Z","links":{"resolver":"https://pith.science/pith/IE7THALSCNRI2JLGGABPVLKLNU","bundle":"https://pith.science/pith/IE7THALSCNRI2JLGGABPVLKLNU/bundle.json","state":"https://pith.science/pith/IE7THALSCNRI2JLGGABPVLKLNU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IE7THALSCNRI2JLGGABPVLKLNU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:IE7THALSCNRI2JLGGABPVLKLNU","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":"6d9a104f28419b988ac552e6d48e4d00e4d03c71303eb92b7d2f861d62f0abfd","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-02-08T20:29:24Z","title_canon_sha256":"ad1bc5e89a208d06ee98e9aeb63e241ced79c26806638512f53394344031f421"},"schema_version":"1.0","source":{"id":"1602.02728","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.02728","created_at":"2026-05-18T01:10:51Z"},{"alias_kind":"arxiv_version","alias_value":"1602.02728v1","created_at":"2026-05-18T01:10:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.02728","created_at":"2026-05-18T01:10:51Z"},{"alias_kind":"pith_short_12","alias_value":"IE7THALSCNRI","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_16","alias_value":"IE7THALSCNRI2JLG","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_8","alias_value":"IE7THALS","created_at":"2026-05-18T12:30:22Z"}],"graph_snapshots":[{"event_id":"sha256:6e8bc7ccc360422a6ff01ee3b008d7ca341a39ef47860018b4076ed632b32e68","target":"graph","created_at":"2026-05-18T01:10:51Z","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":"The field of gamma-ray astronomy has experienced impressive progress over the last decade. Thanks to the advent of a new generation of imaging air Cherenkov telescopes (H.E.S.S., MAGIC, VERITAS) and thanks to the launch of the Fermi-LAT satellite, several thousand gamma-ray sources are known today, revealing an unexpected ubiquity of particle acceleration processes in the Universe. Major scientific challenges are still ahead, such as the identification of the nature of Dark Matter, the discovery and understanding of the sources of cosmic rays, or the comprehension of the particle acceleration ","authors_text":"J\\\"urgen Kn\\\"odlseder","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-02-08T20:29:24Z","title":"The future of gamma-ray astronomy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.02728","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:ed65dea36bc4392e51705714ccf8c4ab6d375fe5eec770ab3516b518bf1014d2","target":"record","created_at":"2026-05-18T01:10:51Z","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":"6d9a104f28419b988ac552e6d48e4d00e4d03c71303eb92b7d2f861d62f0abfd","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-02-08T20:29:24Z","title_canon_sha256":"ad1bc5e89a208d06ee98e9aeb63e241ced79c26806638512f53394344031f421"},"schema_version":"1.0","source":{"id":"1602.02728","kind":"arxiv","version":1}},"canonical_sha256":"413f33817213628d25663002faad4b6d26aceab17154238207d5955cf3538e34","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"413f33817213628d25663002faad4b6d26aceab17154238207d5955cf3538e34","first_computed_at":"2026-05-18T01:10:51.093448Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:10:51.093448Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8qYTeP9I31L+LtU11dDoMlGGtDZh+imMzmuOreaE+l3hu7Msp3BXUthB7q7zsYouRXAZ00hY6TLxSI4zNZxpCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:10:51.093950Z","signed_message":"canonical_sha256_bytes"},"source_id":"1602.02728","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ed65dea36bc4392e51705714ccf8c4ab6d375fe5eec770ab3516b518bf1014d2","sha256:6e8bc7ccc360422a6ff01ee3b008d7ca341a39ef47860018b4076ed632b32e68"],"state_sha256":"d1900c14e8bfe0450eaf3e1b9cbfcc3e529b6bee9e41a0b5e75137ccf3814e47"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JSBlCe0lixeIy2N1a0W/tWwWMs1nCRNXjiUY2k3Z+62rNqh62KA2y2jbImdrbw/8uTp0Q7/C/5m7G16zHrppCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T08:12:53.269976Z","bundle_sha256":"7a9ab8fb6f90ee1166793b2d662374978a6eeb0ad7e5c975a299230ff986cee7"}}