{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:Q5R7NZCG53SZCXXA5TFFBHVHF2","short_pith_number":"pith:Q5R7NZCG","canonical_record":{"source":{"id":"1701.06573","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-01-23T19:00:03Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"23e9356c79420b4237d2b82b716c98c4fb947a847df26631cd9dff6cddf0a4c2","abstract_canon_sha256":"c9474a98449c67fa01f6dd2b33493d7792ddca41083f68c90a9c0d878575f184"},"schema_version":"1.0"},"canonical_sha256":"8763f6e446eee5915ee0ecca509ea72eaf068c8a6927002e45d77e985164ccd1","source":{"kind":"arxiv","id":"1701.06573","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.06573","created_at":"2026-05-18T00:46:13Z"},{"alias_kind":"arxiv_version","alias_value":"1701.06573v2","created_at":"2026-05-18T00:46:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.06573","created_at":"2026-05-18T00:46:13Z"},{"alias_kind":"pith_short_12","alias_value":"Q5R7NZCG53SZ","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_16","alias_value":"Q5R7NZCG53SZCXXA","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_8","alias_value":"Q5R7NZCG","created_at":"2026-05-18T12:31:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:Q5R7NZCG53SZCXXA5TFFBHVHF2","target":"record","payload":{"canonical_record":{"source":{"id":"1701.06573","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-01-23T19:00:03Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"23e9356c79420b4237d2b82b716c98c4fb947a847df26631cd9dff6cddf0a4c2","abstract_canon_sha256":"c9474a98449c67fa01f6dd2b33493d7792ddca41083f68c90a9c0d878575f184"},"schema_version":"1.0"},"canonical_sha256":"8763f6e446eee5915ee0ecca509ea72eaf068c8a6927002e45d77e985164ccd1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:46:13.021185Z","signature_b64":"27Mytg1qgaEpt35+8t0KxGns/TpBDCBNDc8iXonrHi/V1KZNiVlFzEtPRIZ7B1O6ur695fUa5z/FKiKkeyK4AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8763f6e446eee5915ee0ecca509ea72eaf068c8a6927002e45d77e985164ccd1","last_reissued_at":"2026-05-18T00:46:13.020743Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:46:13.020743Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1701.06573","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":"2026-05-18T00:46:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AjFQaMYF1t091WdCwSwCbjYOoBzvfizixcGNitCeVtgLEGa0kAO8yarKBxN/pev6Drp91BSj77nYDT0L/qDyDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T12:23:40.128970Z"},"content_sha256":"496d3e40219755b626ee41108be6612d93a2854939c17ec5bf1c4a96086566a3","schema_version":"1.0","event_id":"sha256:496d3e40219755b626ee41108be6612d93a2854939c17ec5bf1c4a96086566a3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:Q5R7NZCG53SZCXXA5TFFBHVHF2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Linking Past and Future Null Infinity in Three Dimensions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Friedrich Sch\\\"oller, Jakob Salzer, Stefan Prohazka","submitted_at":"2017-01-23T19:00:03Z","abstract_excerpt":"We provide a mapping between past null and future null infinity in three-dimensional flat space, using symmetry considerations. From this we derive a mapping between the corresponding asymptotic symmetry groups. By studying the metric at asymptotic regions, we find that the mapping is energy preserving and yields an infinite number of conservation laws."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.06573","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":"2026-05-18T00:46:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JkEE0t3bckLbfZcAS8my69JbaT3eJAVgVC63dzHKJ/dS4AIKoqsE92qxyLJLWDs+/MLLO9peu3gGT5hbjDigDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T12:23:40.129331Z"},"content_sha256":"2bcd4197bb4684cb8f06acb30a39c38a8469a7ab0cda7bede40947e5f68fcb82","schema_version":"1.0","event_id":"sha256:2bcd4197bb4684cb8f06acb30a39c38a8469a7ab0cda7bede40947e5f68fcb82"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q5R7NZCG53SZCXXA5TFFBHVHF2/bundle.json","state_url":"https://pith.science/pith/Q5R7NZCG53SZCXXA5TFFBHVHF2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q5R7NZCG53SZCXXA5TFFBHVHF2/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":"2026-06-11T12:23:40Z","links":{"resolver":"https://pith.science/pith/Q5R7NZCG53SZCXXA5TFFBHVHF2","bundle":"https://pith.science/pith/Q5R7NZCG53SZCXXA5TFFBHVHF2/bundle.json","state":"https://pith.science/pith/Q5R7NZCG53SZCXXA5TFFBHVHF2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q5R7NZCG53SZCXXA5TFFBHVHF2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:Q5R7NZCG53SZCXXA5TFFBHVHF2","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":"c9474a98449c67fa01f6dd2b33493d7792ddca41083f68c90a9c0d878575f184","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-01-23T19:00:03Z","title_canon_sha256":"23e9356c79420b4237d2b82b716c98c4fb947a847df26631cd9dff6cddf0a4c2"},"schema_version":"1.0","source":{"id":"1701.06573","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.06573","created_at":"2026-05-18T00:46:13Z"},{"alias_kind":"arxiv_version","alias_value":"1701.06573v2","created_at":"2026-05-18T00:46:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.06573","created_at":"2026-05-18T00:46:13Z"},{"alias_kind":"pith_short_12","alias_value":"Q5R7NZCG53SZ","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_16","alias_value":"Q5R7NZCG53SZCXXA","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_8","alias_value":"Q5R7NZCG","created_at":"2026-05-18T12:31:37Z"}],"graph_snapshots":[{"event_id":"sha256:2bcd4197bb4684cb8f06acb30a39c38a8469a7ab0cda7bede40947e5f68fcb82","target":"graph","created_at":"2026-05-18T00:46:13Z","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 provide a mapping between past null and future null infinity in three-dimensional flat space, using symmetry considerations. From this we derive a mapping between the corresponding asymptotic symmetry groups. By studying the metric at asymptotic regions, we find that the mapping is energy preserving and yields an infinite number of conservation laws.","authors_text":"Friedrich Sch\\\"oller, Jakob Salzer, Stefan Prohazka","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-01-23T19:00:03Z","title":"Linking Past and Future Null Infinity in Three Dimensions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.06573","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":"sha256:496d3e40219755b626ee41108be6612d93a2854939c17ec5bf1c4a96086566a3","target":"record","created_at":"2026-05-18T00:46:13Z","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":"c9474a98449c67fa01f6dd2b33493d7792ddca41083f68c90a9c0d878575f184","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-01-23T19:00:03Z","title_canon_sha256":"23e9356c79420b4237d2b82b716c98c4fb947a847df26631cd9dff6cddf0a4c2"},"schema_version":"1.0","source":{"id":"1701.06573","kind":"arxiv","version":2}},"canonical_sha256":"8763f6e446eee5915ee0ecca509ea72eaf068c8a6927002e45d77e985164ccd1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8763f6e446eee5915ee0ecca509ea72eaf068c8a6927002e45d77e985164ccd1","first_computed_at":"2026-05-18T00:46:13.020743Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:46:13.020743Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"27Mytg1qgaEpt35+8t0KxGns/TpBDCBNDc8iXonrHi/V1KZNiVlFzEtPRIZ7B1O6ur695fUa5z/FKiKkeyK4AA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:46:13.021185Z","signed_message":"canonical_sha256_bytes"},"source_id":"1701.06573","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:496d3e40219755b626ee41108be6612d93a2854939c17ec5bf1c4a96086566a3","sha256:2bcd4197bb4684cb8f06acb30a39c38a8469a7ab0cda7bede40947e5f68fcb82"],"state_sha256":"6c6d5e0cf98001adbc707506370495f763511e2db611b6d98e193cd4d949d107"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xLFheNXRT+cgRP95WT399sW6VdZ2FA543aS6WUquG9uH/nwfOtA6sT35ZfPaZ0IBuge3x37rjpe5kxJaPHd8BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T12:23:40.131338Z","bundle_sha256":"564be8ff3ec8023190c74fa215c3243134c6b36a1db2e275cb46f234f473ccf7"}}