{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:3GYOQH2VOHBATJZC3INEKRWWBU","short_pith_number":"pith:3GYOQH2V","canonical_record":{"source":{"id":"1105.3420","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-05-17T16:04:30Z","cross_cats_sorted":["astro-ph.CO","hep-th","quant-ph"],"title_canon_sha256":"b37005d8815eb9d41d7281f3065899bb73c68c5bcf13c75ae0218174d3980eed","abstract_canon_sha256":"8654d30355a9041ca622122e0e6e49e759afed54eb07f82a361f5656768f46fc"},"schema_version":"1.0"},"canonical_sha256":"d9b0e81f5571c209a722da1a4546d60d274af0cf8fb36ad17ebe70db6a5e979a","source":{"kind":"arxiv","id":"1105.3420","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.3420","created_at":"2026-05-18T02:01:57Z"},{"alias_kind":"arxiv_version","alias_value":"1105.3420v2","created_at":"2026-05-18T02:01:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.3420","created_at":"2026-05-18T02:01:57Z"},{"alias_kind":"pith_short_12","alias_value":"3GYOQH2VOHBA","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"3GYOQH2VOHBATJZC","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"3GYOQH2V","created_at":"2026-05-18T12:26:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:3GYOQH2VOHBATJZC3INEKRWWBU","target":"record","payload":{"canonical_record":{"source":{"id":"1105.3420","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-05-17T16:04:30Z","cross_cats_sorted":["astro-ph.CO","hep-th","quant-ph"],"title_canon_sha256":"b37005d8815eb9d41d7281f3065899bb73c68c5bcf13c75ae0218174d3980eed","abstract_canon_sha256":"8654d30355a9041ca622122e0e6e49e759afed54eb07f82a361f5656768f46fc"},"schema_version":"1.0"},"canonical_sha256":"d9b0e81f5571c209a722da1a4546d60d274af0cf8fb36ad17ebe70db6a5e979a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:01:57.080733Z","signature_b64":"ZxFU6r1K1hwOHNVDcl5SZ2qHJcnZPAKxkB51GBeJg43Bve9Nh6lCjlruVlJMg/DSNQEtEuQL7VYgkxUEi/oaBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d9b0e81f5571c209a722da1a4546d60d274af0cf8fb36ad17ebe70db6a5e979a","last_reissued_at":"2026-05-18T02:01:57.080044Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:01:57.080044Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1105.3420","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":"2026-05-18T02:01:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BehuY31an+o/eZYGCFZNQ59Ucei69eUOV0lGnyqaafJ59U+KLyEDs41tSWXNdgUJlcqUAJLvUmRG6lSSfpu0BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T07:46:05.860159Z"},"content_sha256":"a0ed88071baa39f204a05cca1a7b78e9bfbeb6be9ec23e036f14f24e2ae1f249","schema_version":"1.0","event_id":"sha256:a0ed88071baa39f204a05cca1a7b78e9bfbeb6be9ec23e036f14f24e2ae1f249"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:3GYOQH2VOHBATJZC3INEKRWWBU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Strongly Coupled Chameleons and the Neutronic Quantum Bouncer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-th","quant-ph"],"primary_cat":"hep-ph","authors_text":"Guillaume Pignol, Philippe Brax","submitted_at":"2011-05-17T16:04:30Z","abstract_excerpt":"We consider the potential detection of chameleons using bouncing ultracold neutrons. We show that the presence of a chameleon field over a planar plate would alter the energy levels of ultra cold neutrons in the terrestrial gravitational field. When chameleons are strongly coupled to nuclear matter, $\\beta\\gtrsim 10^8$, we find that the shift in energy levels would be detectable with the forthcoming GRANIT experiment, where a sensitivity of order one percent of a peV is expected. We also find that an extremely large coupling $\\beta\\gtrsim 10^{11}$ would lead to new bound states at a distance o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.3420","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":"2026-05-18T02:01:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EQUWJ1tStnvKxsupk1KOI+JTzZuOGJE1iwzsETGbpzqL4YV9adhtl/PbW+l0DOJOJMsuGqm5ANlJzdTiXPdPBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T07:46:05.860890Z"},"content_sha256":"76f63c5cadc65b48b6b74a247ff68b8f3147ebed658cefd4130fb5209b0ec0be","schema_version":"1.0","event_id":"sha256:76f63c5cadc65b48b6b74a247ff68b8f3147ebed658cefd4130fb5209b0ec0be"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3GYOQH2VOHBATJZC3INEKRWWBU/bundle.json","state_url":"https://pith.science/pith/3GYOQH2VOHBATJZC3INEKRWWBU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3GYOQH2VOHBATJZC3INEKRWWBU/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":"2026-05-31T07:46:05Z","links":{"resolver":"https://pith.science/pith/3GYOQH2VOHBATJZC3INEKRWWBU","bundle":"https://pith.science/pith/3GYOQH2VOHBATJZC3INEKRWWBU/bundle.json","state":"https://pith.science/pith/3GYOQH2VOHBATJZC3INEKRWWBU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3GYOQH2VOHBATJZC3INEKRWWBU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:3GYOQH2VOHBATJZC3INEKRWWBU","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":"8654d30355a9041ca622122e0e6e49e759afed54eb07f82a361f5656768f46fc","cross_cats_sorted":["astro-ph.CO","hep-th","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-05-17T16:04:30Z","title_canon_sha256":"b37005d8815eb9d41d7281f3065899bb73c68c5bcf13c75ae0218174d3980eed"},"schema_version":"1.0","source":{"id":"1105.3420","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.3420","created_at":"2026-05-18T02:01:57Z"},{"alias_kind":"arxiv_version","alias_value":"1105.3420v2","created_at":"2026-05-18T02:01:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.3420","created_at":"2026-05-18T02:01:57Z"},{"alias_kind":"pith_short_12","alias_value":"3GYOQH2VOHBA","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"3GYOQH2VOHBATJZC","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"3GYOQH2V","created_at":"2026-05-18T12:26:18Z"}],"graph_snapshots":[{"event_id":"sha256:76f63c5cadc65b48b6b74a247ff68b8f3147ebed658cefd4130fb5209b0ec0be","target":"graph","created_at":"2026-05-18T02:01:57Z","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 consider the potential detection of chameleons using bouncing ultracold neutrons. We show that the presence of a chameleon field over a planar plate would alter the energy levels of ultra cold neutrons in the terrestrial gravitational field. When chameleons are strongly coupled to nuclear matter, $\\beta\\gtrsim 10^8$, we find that the shift in energy levels would be detectable with the forthcoming GRANIT experiment, where a sensitivity of order one percent of a peV is expected. We also find that an extremely large coupling $\\beta\\gtrsim 10^{11}$ would lead to new bound states at a distance o","authors_text":"Guillaume Pignol, Philippe Brax","cross_cats":["astro-ph.CO","hep-th","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-05-17T16:04:30Z","title":"Strongly Coupled Chameleons and the Neutronic Quantum Bouncer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.3420","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:a0ed88071baa39f204a05cca1a7b78e9bfbeb6be9ec23e036f14f24e2ae1f249","target":"record","created_at":"2026-05-18T02:01:57Z","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":"8654d30355a9041ca622122e0e6e49e759afed54eb07f82a361f5656768f46fc","cross_cats_sorted":["astro-ph.CO","hep-th","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-05-17T16:04:30Z","title_canon_sha256":"b37005d8815eb9d41d7281f3065899bb73c68c5bcf13c75ae0218174d3980eed"},"schema_version":"1.0","source":{"id":"1105.3420","kind":"arxiv","version":2}},"canonical_sha256":"d9b0e81f5571c209a722da1a4546d60d274af0cf8fb36ad17ebe70db6a5e979a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d9b0e81f5571c209a722da1a4546d60d274af0cf8fb36ad17ebe70db6a5e979a","first_computed_at":"2026-05-18T02:01:57.080044Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:57.080044Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZxFU6r1K1hwOHNVDcl5SZ2qHJcnZPAKxkB51GBeJg43Bve9Nh6lCjlruVlJMg/DSNQEtEuQL7VYgkxUEi/oaBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:57.080733Z","signed_message":"canonical_sha256_bytes"},"source_id":"1105.3420","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a0ed88071baa39f204a05cca1a7b78e9bfbeb6be9ec23e036f14f24e2ae1f249","sha256:76f63c5cadc65b48b6b74a247ff68b8f3147ebed658cefd4130fb5209b0ec0be"],"state_sha256":"a168cbcdbbd2f0dfecf99feef6b7e9b0ab8076d2ad717a237aebfb951148c7ac"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zYDtSEoKY2lT0mvWIPizasQuj1WKw4+ZTfgkuyLnaJ5DEBXwD4QwicKeQXavlPN9X3IgCBw0OusFH9RdtvBCCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T07:46:05.864385Z","bundle_sha256":"963235e8d48c9ac1c424eba2db306f23d3689261f1dac7b8b9133908b473e6e0"}}