{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:AAYQ2WRQ3HIFA6MCUAW6AGBZB3","short_pith_number":"pith:AAYQ2WRQ","canonical_record":{"source":{"id":"2202.10661","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"gr-qc","submitted_at":"2022-02-22T04:12:53Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"4458eb60aa2cd21b5c2ade9e7faf5532f1dbf8d7604d12731ee0014fe9388651","abstract_canon_sha256":"c0c5fff1fd70bc30ccef15ebb3f81b4bf975e8606ea541f9f146a854d8353516"},"schema_version":"1.0"},"canonical_sha256":"00310d5a30d9d0507982a02de018390ed63b5403f5c12221df6301ce2fab8838","source":{"kind":"arxiv","id":"2202.10661","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.10661","created_at":"2026-07-05T04:11:11Z"},{"alias_kind":"arxiv_version","alias_value":"2202.10661v2","created_at":"2026-07-05T04:11:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.10661","created_at":"2026-07-05T04:11:11Z"},{"alias_kind":"pith_short_12","alias_value":"AAYQ2WRQ3HIF","created_at":"2026-07-05T04:11:11Z"},{"alias_kind":"pith_short_16","alias_value":"AAYQ2WRQ3HIFA6MC","created_at":"2026-07-05T04:11:11Z"},{"alias_kind":"pith_short_8","alias_value":"AAYQ2WRQ","created_at":"2026-07-05T04:11:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:AAYQ2WRQ3HIFA6MCUAW6AGBZB3","target":"record","payload":{"canonical_record":{"source":{"id":"2202.10661","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"gr-qc","submitted_at":"2022-02-22T04:12:53Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"4458eb60aa2cd21b5c2ade9e7faf5532f1dbf8d7604d12731ee0014fe9388651","abstract_canon_sha256":"c0c5fff1fd70bc30ccef15ebb3f81b4bf975e8606ea541f9f146a854d8353516"},"schema_version":"1.0"},"canonical_sha256":"00310d5a30d9d0507982a02de018390ed63b5403f5c12221df6301ce2fab8838","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:11:11.554210Z","signature_b64":"6tZF+BPNmTURSLBgR0OjTt1/nlEZAEieR5ObaT8jz+6A5QFH+GG/zt/2a3a5p/kwfqSh0evpgYanWRSVD52tBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"00310d5a30d9d0507982a02de018390ed63b5403f5c12221df6301ce2fab8838","last_reissued_at":"2026-07-05T04:11:11.553750Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:11:11.553750Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2202.10661","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":"2026-07-05T04:11:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GDkHInNf5Im9i0zVcKN4uPMWBFNr99JCkLSvxif7EuMQwqNEzOaXmgNkKlcUjqQvi18RSEYFiYPvN7BoYwf5Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T03:20:31.375261Z"},"content_sha256":"ee7878516d281cc19f4abcaea33fb26c9b10ca9efaf3914ca61b65ea25143941","schema_version":"1.0","event_id":"sha256:ee7878516d281cc19f4abcaea33fb26c9b10ca9efaf3914ca61b65ea25143941"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:AAYQ2WRQ3HIFA6MCUAW6AGBZB3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A simple analytic example of the gravitational wave memory effect","license":"http://creativecommons.org/publicdomain/zero/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Indranil Chakraborty, Sayan Kar (IIT Kharagpur)","submitted_at":"2022-02-22T04:12:53Z","abstract_excerpt":"We report an analytical example of the gravitational wave memory effect in exact plane wave spacetimes. A square pulse profile is chosen which gives rise to a curved wave region sandwiched between two flat Minkowski spacetimes. Working in the Brinkmann coordinate system, we solve the geodesic equations exactly in all three regions. Issues related to the continuity and differentiability of the solutions at the boundaries of the pulse are addressed. The evolution of the geodesic separation reveals displacement and velocity memory effects with quantitative estimates depending on initial values an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.10661","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2202.10661/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":"2026-07-05T04:11:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gX1YCd8pKLtdHoKYikSQirNyJ2F0qaDS18fcVdKu7T+JrVARwPVZPmDR0ee8/zf0bVsuzES6fJC6weH1wFUNCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T03:20:31.375776Z"},"content_sha256":"ee392b1ec044b987636fbb15e9a0575cbe42022e12df239988e4aeba77fae47a","schema_version":"1.0","event_id":"sha256:ee392b1ec044b987636fbb15e9a0575cbe42022e12df239988e4aeba77fae47a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AAYQ2WRQ3HIFA6MCUAW6AGBZB3/bundle.json","state_url":"https://pith.science/pith/AAYQ2WRQ3HIFA6MCUAW6AGBZB3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AAYQ2WRQ3HIFA6MCUAW6AGBZB3/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":"2026-08-11T03:20:31Z","links":{"resolver":"https://pith.science/pith/AAYQ2WRQ3HIFA6MCUAW6AGBZB3","bundle":"https://pith.science/pith/AAYQ2WRQ3HIFA6MCUAW6AGBZB3/bundle.json","state":"https://pith.science/pith/AAYQ2WRQ3HIFA6MCUAW6AGBZB3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AAYQ2WRQ3HIFA6MCUAW6AGBZB3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:AAYQ2WRQ3HIFA6MCUAW6AGBZB3","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":"c0c5fff1fd70bc30ccef15ebb3f81b4bf975e8606ea541f9f146a854d8353516","cross_cats_sorted":["hep-th"],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"gr-qc","submitted_at":"2022-02-22T04:12:53Z","title_canon_sha256":"4458eb60aa2cd21b5c2ade9e7faf5532f1dbf8d7604d12731ee0014fe9388651"},"schema_version":"1.0","source":{"id":"2202.10661","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.10661","created_at":"2026-07-05T04:11:11Z"},{"alias_kind":"arxiv_version","alias_value":"2202.10661v2","created_at":"2026-07-05T04:11:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.10661","created_at":"2026-07-05T04:11:11Z"},{"alias_kind":"pith_short_12","alias_value":"AAYQ2WRQ3HIF","created_at":"2026-07-05T04:11:11Z"},{"alias_kind":"pith_short_16","alias_value":"AAYQ2WRQ3HIFA6MC","created_at":"2026-07-05T04:11:11Z"},{"alias_kind":"pith_short_8","alias_value":"AAYQ2WRQ","created_at":"2026-07-05T04:11:11Z"}],"graph_snapshots":[{"event_id":"sha256:ee392b1ec044b987636fbb15e9a0575cbe42022e12df239988e4aeba77fae47a","target":"graph","created_at":"2026-07-05T04:11:11Z","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/2202.10661/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report an analytical example of the gravitational wave memory effect in exact plane wave spacetimes. A square pulse profile is chosen which gives rise to a curved wave region sandwiched between two flat Minkowski spacetimes. Working in the Brinkmann coordinate system, we solve the geodesic equations exactly in all three regions. Issues related to the continuity and differentiability of the solutions at the boundaries of the pulse are addressed. The evolution of the geodesic separation reveals displacement and velocity memory effects with quantitative estimates depending on initial values an","authors_text":"Indranil Chakraborty, Sayan Kar (IIT Kharagpur)","cross_cats":["hep-th"],"headline":"","license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"gr-qc","submitted_at":"2022-02-22T04:12:53Z","title":"A simple analytic example of the gravitational wave memory effect"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.10661","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:ee7878516d281cc19f4abcaea33fb26c9b10ca9efaf3914ca61b65ea25143941","target":"record","created_at":"2026-07-05T04:11:11Z","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":"c0c5fff1fd70bc30ccef15ebb3f81b4bf975e8606ea541f9f146a854d8353516","cross_cats_sorted":["hep-th"],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"gr-qc","submitted_at":"2022-02-22T04:12:53Z","title_canon_sha256":"4458eb60aa2cd21b5c2ade9e7faf5532f1dbf8d7604d12731ee0014fe9388651"},"schema_version":"1.0","source":{"id":"2202.10661","kind":"arxiv","version":2}},"canonical_sha256":"00310d5a30d9d0507982a02de018390ed63b5403f5c12221df6301ce2fab8838","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"00310d5a30d9d0507982a02de018390ed63b5403f5c12221df6301ce2fab8838","first_computed_at":"2026-07-05T04:11:11.553750Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:11:11.553750Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6tZF+BPNmTURSLBgR0OjTt1/nlEZAEieR5ObaT8jz+6A5QFH+GG/zt/2a3a5p/kwfqSh0evpgYanWRSVD52tBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:11:11.554210Z","signed_message":"canonical_sha256_bytes"},"source_id":"2202.10661","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ee7878516d281cc19f4abcaea33fb26c9b10ca9efaf3914ca61b65ea25143941","sha256:ee392b1ec044b987636fbb15e9a0575cbe42022e12df239988e4aeba77fae47a"],"state_sha256":"b579e56e723865268a6a284a9f7ccb32a506370333540501f4bdb7a4f60e3e46"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tCzsiex0YM5BylsHEsmcCtAtrjU39IDP3yMng8JumcIgv9LQ/0p79yfoKhDkox/7Ab50NV+PL9YWlQyutz/GBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T03:20:31.380722Z","bundle_sha256":"fe1f0c2c0e3dc0ecd49be549d57677bf09013e7b414a080b0eabfe265dd9f251"}}