{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:3V3KBKFRP7GIEAZWALWVS4KLJT","short_pith_number":"pith:3V3KBKFR","canonical_record":{"source":{"id":"2108.13235","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2021-08-30T13:43:40Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"3447e75747360778c8edbc8c67cb86867ed5c3d566732271e45b558574664771","abstract_canon_sha256":"7d1472fd5628ac32114ebdf0d3e46830874dac59d2224e9c0e8cd893e01d9e15"},"schema_version":"1.0"},"canonical_sha256":"dd76a0a8b17fcc82033602ed59714b4ccbf35630f94bfc4e7bfa7116e056eb54","source":{"kind":"arxiv","id":"2108.13235","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.13235","created_at":"2026-07-05T03:58:53Z"},{"alias_kind":"arxiv_version","alias_value":"2108.13235v1","created_at":"2026-07-05T03:58:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.13235","created_at":"2026-07-05T03:58:53Z"},{"alias_kind":"pith_short_12","alias_value":"3V3KBKFRP7GI","created_at":"2026-07-05T03:58:53Z"},{"alias_kind":"pith_short_16","alias_value":"3V3KBKFRP7GIEAZW","created_at":"2026-07-05T03:58:53Z"},{"alias_kind":"pith_short_8","alias_value":"3V3KBKFR","created_at":"2026-07-05T03:58:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:3V3KBKFRP7GIEAZWALWVS4KLJT","target":"record","payload":{"canonical_record":{"source":{"id":"2108.13235","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2021-08-30T13:43:40Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"3447e75747360778c8edbc8c67cb86867ed5c3d566732271e45b558574664771","abstract_canon_sha256":"7d1472fd5628ac32114ebdf0d3e46830874dac59d2224e9c0e8cd893e01d9e15"},"schema_version":"1.0"},"canonical_sha256":"dd76a0a8b17fcc82033602ed59714b4ccbf35630f94bfc4e7bfa7116e056eb54","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:58:53.207021Z","signature_b64":"Y16VxiSNQY1o1tjK5rAqz/Esi4AlPGzoHcJnYKu10LY4NvHSt8cgkLqk2SLWyjYqTs4LJIu+s7LpinePZsN9CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dd76a0a8b17fcc82033602ed59714b4ccbf35630f94bfc4e7bfa7116e056eb54","last_reissued_at":"2026-07-05T03:58:53.206527Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:58:53.206527Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2108.13235","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":"2026-07-05T03:58:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4Z4EPNqFg1nN+vSFGqgBLwR66KE6K4aMFVHpna4skg+L+58NMbRsJSqH/c+xtuQ/EvWmrhJeJ80WByB71zPtBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T13:49:18.336100Z"},"content_sha256":"7fc2285b71b656a9d64a7f2d65f22fb99c6be085fce7c8c5c6ec95dbdb38c209","schema_version":"1.0","event_id":"sha256:7fc2285b71b656a9d64a7f2d65f22fb99c6be085fce7c8c5c6ec95dbdb38c209"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:3V3KBKFRP7GIEAZWALWVS4KLJT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Background Field Method and Initial-Time Singularity for Coherent States","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"hep-th","authors_text":"Giordano Cintia, Lasha Berezhiani, Michael Zantedeschi","submitted_at":"2021-08-30T13:43:40Z","abstract_excerpt":"The background field method is adopted for studying the dynamics of coherent states within an interacting scalar field theory. Focusing on a coherent state that corresponds to the homogeneous condensate, the quantum depletion of the expectation value of the field-operator is demonstrated to be due to the annihilation of the condensate constituents into relativistic quanta. Moreover, due to the fact that the initial field acceleration and energy for the non-squeezed coherent states are determined in terms of bare coupling constant, instead of the renormalized one, the appearance of perturbative"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.13235","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/2108.13235/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":"2026-07-05T03:58:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5ld8zQUJRJUXFcTByU4rseAyYm2BQSk48IKN9yUsfgTbISErJ9WFXMCL0drZdwco9yqX4iFjkYR/f2S9f6aZDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T13:49:18.337182Z"},"content_sha256":"b251795eb3a2ec86d4c05bace328479d8da5fc415a10dd882ace94faba8a9704","schema_version":"1.0","event_id":"sha256:b251795eb3a2ec86d4c05bace328479d8da5fc415a10dd882ace94faba8a9704"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3V3KBKFRP7GIEAZWALWVS4KLJT/bundle.json","state_url":"https://pith.science/pith/3V3KBKFRP7GIEAZWALWVS4KLJT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3V3KBKFRP7GIEAZWALWVS4KLJT/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":"2026-08-16T13:49:18Z","links":{"resolver":"https://pith.science/pith/3V3KBKFRP7GIEAZWALWVS4KLJT","bundle":"https://pith.science/pith/3V3KBKFRP7GIEAZWALWVS4KLJT/bundle.json","state":"https://pith.science/pith/3V3KBKFRP7GIEAZWALWVS4KLJT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3V3KBKFRP7GIEAZWALWVS4KLJT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:3V3KBKFRP7GIEAZWALWVS4KLJT","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":"7d1472fd5628ac32114ebdf0d3e46830874dac59d2224e9c0e8cd893e01d9e15","cross_cats_sorted":["quant-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2021-08-30T13:43:40Z","title_canon_sha256":"3447e75747360778c8edbc8c67cb86867ed5c3d566732271e45b558574664771"},"schema_version":"1.0","source":{"id":"2108.13235","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.13235","created_at":"2026-07-05T03:58:53Z"},{"alias_kind":"arxiv_version","alias_value":"2108.13235v1","created_at":"2026-07-05T03:58:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.13235","created_at":"2026-07-05T03:58:53Z"},{"alias_kind":"pith_short_12","alias_value":"3V3KBKFRP7GI","created_at":"2026-07-05T03:58:53Z"},{"alias_kind":"pith_short_16","alias_value":"3V3KBKFRP7GIEAZW","created_at":"2026-07-05T03:58:53Z"},{"alias_kind":"pith_short_8","alias_value":"3V3KBKFR","created_at":"2026-07-05T03:58:53Z"}],"graph_snapshots":[{"event_id":"sha256:b251795eb3a2ec86d4c05bace328479d8da5fc415a10dd882ace94faba8a9704","target":"graph","created_at":"2026-07-05T03:58:53Z","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/2108.13235/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The background field method is adopted for studying the dynamics of coherent states within an interacting scalar field theory. Focusing on a coherent state that corresponds to the homogeneous condensate, the quantum depletion of the expectation value of the field-operator is demonstrated to be due to the annihilation of the condensate constituents into relativistic quanta. Moreover, due to the fact that the initial field acceleration and energy for the non-squeezed coherent states are determined in terms of bare coupling constant, instead of the renormalized one, the appearance of perturbative","authors_text":"Giordano Cintia, Lasha Berezhiani, Michael Zantedeschi","cross_cats":["quant-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2021-08-30T13:43:40Z","title":"Background Field Method and Initial-Time Singularity for Coherent States"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.13235","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":"sha256:7fc2285b71b656a9d64a7f2d65f22fb99c6be085fce7c8c5c6ec95dbdb38c209","target":"record","created_at":"2026-07-05T03:58:53Z","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":"7d1472fd5628ac32114ebdf0d3e46830874dac59d2224e9c0e8cd893e01d9e15","cross_cats_sorted":["quant-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2021-08-30T13:43:40Z","title_canon_sha256":"3447e75747360778c8edbc8c67cb86867ed5c3d566732271e45b558574664771"},"schema_version":"1.0","source":{"id":"2108.13235","kind":"arxiv","version":1}},"canonical_sha256":"dd76a0a8b17fcc82033602ed59714b4ccbf35630f94bfc4e7bfa7116e056eb54","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dd76a0a8b17fcc82033602ed59714b4ccbf35630f94bfc4e7bfa7116e056eb54","first_computed_at":"2026-07-05T03:58:53.206527Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:58:53.206527Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Y16VxiSNQY1o1tjK5rAqz/Esi4AlPGzoHcJnYKu10LY4NvHSt8cgkLqk2SLWyjYqTs4LJIu+s7LpinePZsN9CQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:58:53.207021Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.13235","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7fc2285b71b656a9d64a7f2d65f22fb99c6be085fce7c8c5c6ec95dbdb38c209","sha256:b251795eb3a2ec86d4c05bace328479d8da5fc415a10dd882ace94faba8a9704"],"state_sha256":"7ae4bc9ce22637478854c4c53224e20f65aa2bb594fa92ca16b642376cb4a300"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MUWFe9XNkSjtrav1ib+L0BvAqq/gYpTq6dCqcttJSRq6WN5VNgaGxRLsmFZzVBroP5P8b2mFfNOL0oM1fEHdAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T13:49:18.344493Z","bundle_sha256":"57801a2c0f231fa0af8f8b0e0773544e98f9c65933055f7c2772c6f25a46b133"}}