{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:SAIU5I5HMLVAG5MZVR5TJWFAFT","short_pith_number":"pith:SAIU5I5H","canonical_record":{"source":{"id":"1508.03986","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-ex","submitted_at":"2015-08-17T11:52:50Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"519c2f6794668f4681cbe3d74e015e5ac248bbc3f6e8f153b8c7d0a2d301c0dc","abstract_canon_sha256":"4d656c9c6846426718b440957bddaf10a5db4382ff43b6d4588b2440ebb0ef1c"},"schema_version":"1.0"},"canonical_sha256":"90114ea3a762ea037599ac7b34d8a02ce800c626984fd746372e39d49eb49407","source":{"kind":"arxiv","id":"1508.03986","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.03986","created_at":"2026-05-18T01:30:07Z"},{"alias_kind":"arxiv_version","alias_value":"1508.03986v1","created_at":"2026-05-18T01:30:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.03986","created_at":"2026-05-18T01:30:07Z"},{"alias_kind":"pith_short_12","alias_value":"SAIU5I5HMLVA","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"SAIU5I5HMLVAG5MZ","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"SAIU5I5H","created_at":"2026-05-18T12:29:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:SAIU5I5HMLVAG5MZVR5TJWFAFT","target":"record","payload":{"canonical_record":{"source":{"id":"1508.03986","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-ex","submitted_at":"2015-08-17T11:52:50Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"519c2f6794668f4681cbe3d74e015e5ac248bbc3f6e8f153b8c7d0a2d301c0dc","abstract_canon_sha256":"4d656c9c6846426718b440957bddaf10a5db4382ff43b6d4588b2440ebb0ef1c"},"schema_version":"1.0"},"canonical_sha256":"90114ea3a762ea037599ac7b34d8a02ce800c626984fd746372e39d49eb49407","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:30:07.795059Z","signature_b64":"/njWG3LahHbJjdqmOxOZcWD1qcDrm0eOoZAbhf5ckHuSBYgORAfj0kTYEE+W2zI6g5EllHGE38arQGpNYSL+Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"90114ea3a762ea037599ac7b34d8a02ce800c626984fd746372e39d49eb49407","last_reissued_at":"2026-05-18T01:30:07.794494Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:30:07.794494Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1508.03986","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":"2026-05-18T01:30:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IgiD2AIftgdYTYZ0PjcXavWTfiHbZD8MYn0LRxTEV9WQ8pTKSzY5rL33NTwYNgpHUPVu4RquM88aTbbDlFY+Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T21:09:03.897153Z"},"content_sha256":"ee79acf7adbb0c619d178bcbb9523d8b432636fb9b6ed6a84a8d650d3df0133d","schema_version":"1.0","event_id":"sha256:ee79acf7adbb0c619d178bcbb9523d8b432636fb9b6ed6a84a8d650d3df0133d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:SAIU5I5HMLVAG5MZVR5TJWFAFT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Precision measurement of the mass difference between light nuclei and anti-nuclei","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"nucl-ex","authors_text":"ALICE Collaboration","submitted_at":"2015-08-17T11:52:50Z","abstract_excerpt":"The measurement of the mass differences for systems bound by the strong force has reached a very high precision with protons and anti-protons. The extension of such measurement from (anti-)baryons to (anti-)nuclei allows one to probe any difference in the interactions between nucleons and anti-nucleons encoded in the (anti-)nuclei masses. This force is a remnant of the underlying strong interaction among quarks and gluons and can be described by effective theories, but cannot yet be directly derived from quantum chromodynamics. Here we report a measurement of the difference between the ratios "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.03986","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:30:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pemOX2dI1sa4zh7NPFVurZTi9Mr1O/iaxmoZiE0P3nZkNq7foXhzwtf0gv0cLnGap258iHAaI47LABjKoAOhBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T21:09:03.897831Z"},"content_sha256":"7b63beef713db554fc7ef88682aa515739edee30189fb8011d21af6e6b1d799d","schema_version":"1.0","event_id":"sha256:7b63beef713db554fc7ef88682aa515739edee30189fb8011d21af6e6b1d799d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SAIU5I5HMLVAG5MZVR5TJWFAFT/bundle.json","state_url":"https://pith.science/pith/SAIU5I5HMLVAG5MZVR5TJWFAFT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SAIU5I5HMLVAG5MZVR5TJWFAFT/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":"2026-05-22T21:09:03Z","links":{"resolver":"https://pith.science/pith/SAIU5I5HMLVAG5MZVR5TJWFAFT","bundle":"https://pith.science/pith/SAIU5I5HMLVAG5MZVR5TJWFAFT/bundle.json","state":"https://pith.science/pith/SAIU5I5HMLVAG5MZVR5TJWFAFT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SAIU5I5HMLVAG5MZVR5TJWFAFT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:SAIU5I5HMLVAG5MZVR5TJWFAFT","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":"4d656c9c6846426718b440957bddaf10a5db4382ff43b6d4588b2440ebb0ef1c","cross_cats_sorted":["hep-ex"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-ex","submitted_at":"2015-08-17T11:52:50Z","title_canon_sha256":"519c2f6794668f4681cbe3d74e015e5ac248bbc3f6e8f153b8c7d0a2d301c0dc"},"schema_version":"1.0","source":{"id":"1508.03986","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.03986","created_at":"2026-05-18T01:30:07Z"},{"alias_kind":"arxiv_version","alias_value":"1508.03986v1","created_at":"2026-05-18T01:30:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.03986","created_at":"2026-05-18T01:30:07Z"},{"alias_kind":"pith_short_12","alias_value":"SAIU5I5HMLVA","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"SAIU5I5HMLVAG5MZ","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"SAIU5I5H","created_at":"2026-05-18T12:29:39Z"}],"graph_snapshots":[{"event_id":"sha256:7b63beef713db554fc7ef88682aa515739edee30189fb8011d21af6e6b1d799d","target":"graph","created_at":"2026-05-18T01:30:07Z","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":"The measurement of the mass differences for systems bound by the strong force has reached a very high precision with protons and anti-protons. The extension of such measurement from (anti-)baryons to (anti-)nuclei allows one to probe any difference in the interactions between nucleons and anti-nucleons encoded in the (anti-)nuclei masses. This force is a remnant of the underlying strong interaction among quarks and gluons and can be described by effective theories, but cannot yet be directly derived from quantum chromodynamics. Here we report a measurement of the difference between the ratios ","authors_text":"ALICE Collaboration","cross_cats":["hep-ex"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-ex","submitted_at":"2015-08-17T11:52:50Z","title":"Precision measurement of the mass difference between light nuclei and anti-nuclei"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.03986","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:ee79acf7adbb0c619d178bcbb9523d8b432636fb9b6ed6a84a8d650d3df0133d","target":"record","created_at":"2026-05-18T01:30:07Z","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":"4d656c9c6846426718b440957bddaf10a5db4382ff43b6d4588b2440ebb0ef1c","cross_cats_sorted":["hep-ex"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-ex","submitted_at":"2015-08-17T11:52:50Z","title_canon_sha256":"519c2f6794668f4681cbe3d74e015e5ac248bbc3f6e8f153b8c7d0a2d301c0dc"},"schema_version":"1.0","source":{"id":"1508.03986","kind":"arxiv","version":1}},"canonical_sha256":"90114ea3a762ea037599ac7b34d8a02ce800c626984fd746372e39d49eb49407","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"90114ea3a762ea037599ac7b34d8a02ce800c626984fd746372e39d49eb49407","first_computed_at":"2026-05-18T01:30:07.794494Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:30:07.794494Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/njWG3LahHbJjdqmOxOZcWD1qcDrm0eOoZAbhf5ckHuSBYgORAfj0kTYEE+W2zI6g5EllHGE38arQGpNYSL+Dw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:30:07.795059Z","signed_message":"canonical_sha256_bytes"},"source_id":"1508.03986","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ee79acf7adbb0c619d178bcbb9523d8b432636fb9b6ed6a84a8d650d3df0133d","sha256:7b63beef713db554fc7ef88682aa515739edee30189fb8011d21af6e6b1d799d"],"state_sha256":"bcba376360a59fa43d493699409b0e23eead6eb4ac5a136dedfc2491eb14c6e6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DD1xx/IcWBz8yS2NxkFXn/PZbCjZ4M8jQtOwDJTR2IqqBp+ljrjiQV5XcZ/XlMhdR8RIjv52J6oy/czdBQbgDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-22T21:09:03.901432Z","bundle_sha256":"837feb763d530cf262d818e821ed23ac7ee0b00f49209d7aa4b33f27aad99ee9"}}