{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:X3ML6YGY4IMPXAH47MQIZOFCEK","short_pith_number":"pith:X3ML6YGY","schema_version":"1.0","canonical_sha256":"bed8bf60d8e218fb80fcfb208cb8a222af537ae7f29691d1900e8f9baa4f5221","source":{"kind":"arxiv","id":"1512.02858","version":1},"attestation_state":"computed","paper":{"title":"Horizon Shells and BMS-like Soldering Transformations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Martin O'Loughlin, Matthias Blau","submitted_at":"2015-12-09T13:57:49Z","abstract_excerpt":"We revisit the theory of null shells in general relativity, with a particular emphasis on null shells placed at horizons of black holes. We study in detail the considerable freedom that is available in the case that one solders two metrics together across null hypersurfaces (such as Killing horizons) for which the induced metric is invariant under translations along the null generators. In this case the group of soldering transformations turns out to be infinite dimensional, and these solderings create non-trivial horizon shells containing both massless matter and impulsive gravitational wave "},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1512.02858","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2015-12-09T13:57:49Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"1d954b12071ed64917f4933441e98966fd6e0e19858a8f5e105e54d29c93cf30","abstract_canon_sha256":"a1fb5f31bb7a25b30b55167c18ce74aa47f7b0eb48c4a6fb606d7dbeaa197bcf"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:18:39.233500Z","signature_b64":"RzMnMyeUKSSIV7Wmck5pkbWFkLKUG8uALovMk5S0Va3bjbhDbH6PtKxaskaYM3RPpK1C2/qJxJ0g1lBJUF2xAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bed8bf60d8e218fb80fcfb208cb8a222af537ae7f29691d1900e8f9baa4f5221","last_reissued_at":"2026-05-18T01:18:39.232886Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:18:39.232886Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Horizon Shells and BMS-like Soldering Transformations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Martin O'Loughlin, Matthias Blau","submitted_at":"2015-12-09T13:57:49Z","abstract_excerpt":"We revisit the theory of null shells in general relativity, with a particular emphasis on null shells placed at horizons of black holes. We study in detail the considerable freedom that is available in the case that one solders two metrics together across null hypersurfaces (such as Killing horizons) for which the induced metric is invariant under translations along the null generators. In this case the group of soldering transformations turns out to be infinite dimensional, and these solderings create non-trivial horizon shells containing both massless matter and impulsive gravitational wave "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.02858","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1512.02858","created_at":"2026-05-18T01:18:39.232979+00:00"},{"alias_kind":"arxiv_version","alias_value":"1512.02858v1","created_at":"2026-05-18T01:18:39.232979+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.02858","created_at":"2026-05-18T01:18:39.232979+00:00"},{"alias_kind":"pith_short_12","alias_value":"X3ML6YGY4IMP","created_at":"2026-05-18T12:29:47.479230+00:00"},{"alias_kind":"pith_short_16","alias_value":"X3ML6YGY4IMPXAH4","created_at":"2026-05-18T12:29:47.479230+00:00"},{"alias_kind":"pith_short_8","alias_value":"X3ML6YGY","created_at":"2026-05-18T12:29:47.479230+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2605.10749","citing_title":"Gravitational Waves in High Energy Fixed-Target Collisions","ref_index":15,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/X3ML6YGY4IMPXAH47MQIZOFCEK","json":"https://pith.science/pith/X3ML6YGY4IMPXAH47MQIZOFCEK.json","graph_json":"https://pith.science/api/pith-number/X3ML6YGY4IMPXAH47MQIZOFCEK/graph.json","events_json":"https://pith.science/api/pith-number/X3ML6YGY4IMPXAH47MQIZOFCEK/events.json","paper":"https://pith.science/paper/X3ML6YGY"},"agent_actions":{"view_html":"https://pith.science/pith/X3ML6YGY4IMPXAH47MQIZOFCEK","download_json":"https://pith.science/pith/X3ML6YGY4IMPXAH47MQIZOFCEK.json","view_paper":"https://pith.science/paper/X3ML6YGY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1512.02858&json=true","fetch_graph":"https://pith.science/api/pith-number/X3ML6YGY4IMPXAH47MQIZOFCEK/graph.json","fetch_events":"https://pith.science/api/pith-number/X3ML6YGY4IMPXAH47MQIZOFCEK/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/X3ML6YGY4IMPXAH47MQIZOFCEK/action/timestamp_anchor","attest_storage":"https://pith.science/pith/X3ML6YGY4IMPXAH47MQIZOFCEK/action/storage_attestation","attest_author":"https://pith.science/pith/X3ML6YGY4IMPXAH47MQIZOFCEK/action/author_attestation","sign_citation":"https://pith.science/pith/X3ML6YGY4IMPXAH47MQIZOFCEK/action/citation_signature","submit_replication":"https://pith.science/pith/X3ML6YGY4IMPXAH47MQIZOFCEK/action/replication_record"}},"created_at":"2026-05-18T01:18:39.232979+00:00","updated_at":"2026-05-18T01:18:39.232979+00:00"}