{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:P5CI6I6EIPXKMHPKQF2DBCKZC5","short_pith_number":"pith:P5CI6I6E","canonical_record":{"source":{"id":"2107.02831","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-07-06T18:24:45Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"83a1f5a31eb19e285204ed71b9b7e49822806d9ea1c67dc420cc1847b444e21d","abstract_canon_sha256":"904e7f00472a6a2ab566a669315f50225cb4f6e94c6a5e1521a98c0d52db7e2f"},"schema_version":"1.0"},"canonical_sha256":"7f448f23c443eea61dea8174308959174b2b7bcdec8cd836a8f5805be46982e3","source":{"kind":"arxiv","id":"2107.02831","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2107.02831","created_at":"2026-07-05T03:50:49Z"},{"alias_kind":"arxiv_version","alias_value":"2107.02831v2","created_at":"2026-07-05T03:50:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.02831","created_at":"2026-07-05T03:50:49Z"},{"alias_kind":"pith_short_12","alias_value":"P5CI6I6EIPXK","created_at":"2026-07-05T03:50:49Z"},{"alias_kind":"pith_short_16","alias_value":"P5CI6I6EIPXKMHPK","created_at":"2026-07-05T03:50:49Z"},{"alias_kind":"pith_short_8","alias_value":"P5CI6I6E","created_at":"2026-07-05T03:50:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:P5CI6I6EIPXKMHPKQF2DBCKZC5","target":"record","payload":{"canonical_record":{"source":{"id":"2107.02831","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-07-06T18:24:45Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"83a1f5a31eb19e285204ed71b9b7e49822806d9ea1c67dc420cc1847b444e21d","abstract_canon_sha256":"904e7f00472a6a2ab566a669315f50225cb4f6e94c6a5e1521a98c0d52db7e2f"},"schema_version":"1.0"},"canonical_sha256":"7f448f23c443eea61dea8174308959174b2b7bcdec8cd836a8f5805be46982e3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:50:49.570278Z","signature_b64":"AnB2T9buHHr/y50vUju1e65U4NYEtjW9xQ5Vkyq31CCs/fDAM8A/v8WRKm3Y7qQbCP0UgRbhQaxnTl/NVhkTBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7f448f23c443eea61dea8174308959174b2b7bcdec8cd836a8f5805be46982e3","last_reissued_at":"2026-07-05T03:50:49.569743Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:50:49.569743Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2107.02831","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":"2026-07-05T03:50:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nuDsCLnV6OAnHtAS44Ma8kVhb8gL4IEwJp/lI2ldHd7PKcfFti3Z0MhoIJlHO4Iwox4ic0/+bs8A0xVoBuHhBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T14:20:39.479816Z"},"content_sha256":"25778dd9079941d25ad4e7fd04af665dacb8a38e39e9ba5e3e7c25c6c262848f","schema_version":"1.0","event_id":"sha256:25778dd9079941d25ad4e7fd04af665dacb8a38e39e9ba5e3e7c25c6c262848f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:P5CI6I6EIPXKMHPKQF2DBCKZC5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Interpretation of neutral charm mesons near threshold as unparticles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-ph","authors_text":"Eric Braaten, Hans-Werner Hammer","submitted_at":"2021-07-06T18:24:45Z","abstract_excerpt":"The existence of the $X(3872)$ resonance extremely close to the $D^{*0} \\bar{D}^0$ threshold implies that neutral charm mesons have an approximate nonrelativistic conformal symmetry. Systems consisting of these mesons with small kinetic energies produced in a short-distance reaction are unparticles in the sense that they can be created by operators with definite scaling dimensions in a nonrelativistic conformal field theory. There is a scaling region in which their energy distribution has power-law behavior with an exponent determined by the scaling dimension of the operator. The unparticle as"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.02831","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/2107.02831/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":"2026-07-05T03:50:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z6nmGquNPJ3R1ZGksc+KR6WNAExVZPaPRCMBjwaMTAt/N86CDpYjJthR+ETY/qEfY/ktMqIB60W6fHnPoEXxAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T14:20:39.480428Z"},"content_sha256":"a51cf8e93e65c178c35e43e16fd9f59699eb291fbf8fc32b6e9fc18a0f20bb89","schema_version":"1.0","event_id":"sha256:a51cf8e93e65c178c35e43e16fd9f59699eb291fbf8fc32b6e9fc18a0f20bb89"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P5CI6I6EIPXKMHPKQF2DBCKZC5/bundle.json","state_url":"https://pith.science/pith/P5CI6I6EIPXKMHPKQF2DBCKZC5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P5CI6I6EIPXKMHPKQF2DBCKZC5/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":"2026-08-10T14:20:39Z","links":{"resolver":"https://pith.science/pith/P5CI6I6EIPXKMHPKQF2DBCKZC5","bundle":"https://pith.science/pith/P5CI6I6EIPXKMHPKQF2DBCKZC5/bundle.json","state":"https://pith.science/pith/P5CI6I6EIPXKMHPKQF2DBCKZC5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P5CI6I6EIPXKMHPKQF2DBCKZC5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:P5CI6I6EIPXKMHPKQF2DBCKZC5","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":"904e7f00472a6a2ab566a669315f50225cb4f6e94c6a5e1521a98c0d52db7e2f","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-07-06T18:24:45Z","title_canon_sha256":"83a1f5a31eb19e285204ed71b9b7e49822806d9ea1c67dc420cc1847b444e21d"},"schema_version":"1.0","source":{"id":"2107.02831","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2107.02831","created_at":"2026-07-05T03:50:49Z"},{"alias_kind":"arxiv_version","alias_value":"2107.02831v2","created_at":"2026-07-05T03:50:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.02831","created_at":"2026-07-05T03:50:49Z"},{"alias_kind":"pith_short_12","alias_value":"P5CI6I6EIPXK","created_at":"2026-07-05T03:50:49Z"},{"alias_kind":"pith_short_16","alias_value":"P5CI6I6EIPXKMHPK","created_at":"2026-07-05T03:50:49Z"},{"alias_kind":"pith_short_8","alias_value":"P5CI6I6E","created_at":"2026-07-05T03:50:49Z"}],"graph_snapshots":[{"event_id":"sha256:a51cf8e93e65c178c35e43e16fd9f59699eb291fbf8fc32b6e9fc18a0f20bb89","target":"graph","created_at":"2026-07-05T03:50:49Z","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/2107.02831/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The existence of the $X(3872)$ resonance extremely close to the $D^{*0} \\bar{D}^0$ threshold implies that neutral charm mesons have an approximate nonrelativistic conformal symmetry. Systems consisting of these mesons with small kinetic energies produced in a short-distance reaction are unparticles in the sense that they can be created by operators with definite scaling dimensions in a nonrelativistic conformal field theory. There is a scaling region in which their energy distribution has power-law behavior with an exponent determined by the scaling dimension of the operator. The unparticle as","authors_text":"Eric Braaten, Hans-Werner Hammer","cross_cats":["nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-07-06T18:24:45Z","title":"Interpretation of neutral charm mesons near threshold as unparticles"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.02831","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":"sha256:25778dd9079941d25ad4e7fd04af665dacb8a38e39e9ba5e3e7c25c6c262848f","target":"record","created_at":"2026-07-05T03:50:49Z","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":"904e7f00472a6a2ab566a669315f50225cb4f6e94c6a5e1521a98c0d52db7e2f","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-07-06T18:24:45Z","title_canon_sha256":"83a1f5a31eb19e285204ed71b9b7e49822806d9ea1c67dc420cc1847b444e21d"},"schema_version":"1.0","source":{"id":"2107.02831","kind":"arxiv","version":2}},"canonical_sha256":"7f448f23c443eea61dea8174308959174b2b7bcdec8cd836a8f5805be46982e3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7f448f23c443eea61dea8174308959174b2b7bcdec8cd836a8f5805be46982e3","first_computed_at":"2026-07-05T03:50:49.569743Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:50:49.569743Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AnB2T9buHHr/y50vUju1e65U4NYEtjW9xQ5Vkyq31CCs/fDAM8A/v8WRKm3Y7qQbCP0UgRbhQaxnTl/NVhkTBw==","signature_status":"signed_v1","signed_at":"2026-07-05T03:50:49.570278Z","signed_message":"canonical_sha256_bytes"},"source_id":"2107.02831","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:25778dd9079941d25ad4e7fd04af665dacb8a38e39e9ba5e3e7c25c6c262848f","sha256:a51cf8e93e65c178c35e43e16fd9f59699eb291fbf8fc32b6e9fc18a0f20bb89"],"state_sha256":"2b5aea3f49b04a408142d92685c68ec67c773a54299c731af7cc16fa262f466f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NyyiGarOGBAMwpizvfG/KVhBl4zDXJNYBB2WzKhYLDNY3/pZCG0KoEA7aObj8hBBTuJL5FhslXBDtKytCcBXAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T14:20:39.485927Z","bundle_sha256":"cae50810ffcdb887ee99e20581b29a7b52b1680c402845d5c27d58b2978a33b5"}}