{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:CS46Y6GZFUQO45YUJO6RA5AD6L","short_pith_number":"pith:CS46Y6GZ","canonical_record":{"source":{"id":"1509.07620","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-09-25T08:12:03Z","cross_cats_sorted":[],"title_canon_sha256":"7ea5fea7cb7a6c55a305dbc7ee98a4b79301a5e4ca66b9e880c36cd7a89772b1","abstract_canon_sha256":"15fe76a1a729e4b675a9f90a9faebbfa8e5f50424df5ae9a9ec4c97f11220ce8"},"schema_version":"1.0"},"canonical_sha256":"14b9ec78d92d20ee77144bbd107403f2e40ab246c33ceb302954612cd105fd44","source":{"kind":"arxiv","id":"1509.07620","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.07620","created_at":"2026-05-18T01:32:02Z"},{"alias_kind":"arxiv_version","alias_value":"1509.07620v1","created_at":"2026-05-18T01:32:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.07620","created_at":"2026-05-18T01:32:02Z"},{"alias_kind":"pith_short_12","alias_value":"CS46Y6GZFUQO","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"CS46Y6GZFUQO45YU","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"CS46Y6GZ","created_at":"2026-05-18T12:29:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:CS46Y6GZFUQO45YUJO6RA5AD6L","target":"record","payload":{"canonical_record":{"source":{"id":"1509.07620","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-09-25T08:12:03Z","cross_cats_sorted":[],"title_canon_sha256":"7ea5fea7cb7a6c55a305dbc7ee98a4b79301a5e4ca66b9e880c36cd7a89772b1","abstract_canon_sha256":"15fe76a1a729e4b675a9f90a9faebbfa8e5f50424df5ae9a9ec4c97f11220ce8"},"schema_version":"1.0"},"canonical_sha256":"14b9ec78d92d20ee77144bbd107403f2e40ab246c33ceb302954612cd105fd44","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:32:02.312058Z","signature_b64":"YNm5oTm92V8hqf41fVvInxn04C8qiopgRX0HGYpw5F1mR807e8RKJkGX42i33GKhGlvf8WGEbIRoBgKHsATCBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"14b9ec78d92d20ee77144bbd107403f2e40ab246c33ceb302954612cd105fd44","last_reissued_at":"2026-05-18T01:32:02.311616Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:32:02.311616Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1509.07620","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":"2026-05-18T01:32:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/jXIGrKaRGnMKLWxkki1INT7vDqC3ZsvthikeJ8YDnSCPczkG6j90SEBw1ld7H4Yth9MswkO26fTEZH5lvKvBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T20:08:02.039355Z"},"content_sha256":"f63cb8fe3865ab1e3c860a10b3850afa6ae19fb92f0e773fe98b153d32f34b5b","schema_version":"1.0","event_id":"sha256:f63cb8fe3865ab1e3c860a10b3850afa6ae19fb92f0e773fe98b153d32f34b5b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:CS46Y6GZFUQO45YUJO6RA5AD6L","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraints on millicharged particles by neutron stars","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Shao-Ze Li, Wei-Hua Wang, Xiao-Ping Zheng, Xi Huang","submitted_at":"2015-09-25T08:12:03Z","abstract_excerpt":"We have constrained the charge-mass ($\\varepsilon-m$) phase space of millicharged particles through the simulation of the rotational evolution of neutron stars, where an extra slow-down effect due to the accretions of millicharged dark matter particles is considered. For a canonical neutron star of $M=1.4~M_{\\odot}$ and $R=10~{\\rm km}$ with typical magnetic field strength $B_{0}=10^{12}$ G, we have shown an upper limit of millicharged particles, which is compatible with recently experimental and observational bounds. Meanwhile, we have also explored the influences on the $\\varepsilon-m$ phase "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.07620","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":"2026-05-18T01:32:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hA/LUPCD8hFBDBsFGfhQvD9COmrh3Rjz4kkjeBC003ZcZF2FQKhKboV/IWuGoW1PZ/9wPcCnp0SRf+ShtmdsBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T20:08:02.039694Z"},"content_sha256":"7bbc4b180b1d1cd5b3b426d817224918b8344a741b30ea134df390e1bcb279f1","schema_version":"1.0","event_id":"sha256:7bbc4b180b1d1cd5b3b426d817224918b8344a741b30ea134df390e1bcb279f1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CS46Y6GZFUQO45YUJO6RA5AD6L/bundle.json","state_url":"https://pith.science/pith/CS46Y6GZFUQO45YUJO6RA5AD6L/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CS46Y6GZFUQO45YUJO6RA5AD6L/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":"2026-06-01T20:08:02Z","links":{"resolver":"https://pith.science/pith/CS46Y6GZFUQO45YUJO6RA5AD6L","bundle":"https://pith.science/pith/CS46Y6GZFUQO45YUJO6RA5AD6L/bundle.json","state":"https://pith.science/pith/CS46Y6GZFUQO45YUJO6RA5AD6L/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CS46Y6GZFUQO45YUJO6RA5AD6L/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:CS46Y6GZFUQO45YUJO6RA5AD6L","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":"15fe76a1a729e4b675a9f90a9faebbfa8e5f50424df5ae9a9ec4c97f11220ce8","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-09-25T08:12:03Z","title_canon_sha256":"7ea5fea7cb7a6c55a305dbc7ee98a4b79301a5e4ca66b9e880c36cd7a89772b1"},"schema_version":"1.0","source":{"id":"1509.07620","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.07620","created_at":"2026-05-18T01:32:02Z"},{"alias_kind":"arxiv_version","alias_value":"1509.07620v1","created_at":"2026-05-18T01:32:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.07620","created_at":"2026-05-18T01:32:02Z"},{"alias_kind":"pith_short_12","alias_value":"CS46Y6GZFUQO","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"CS46Y6GZFUQO45YU","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"CS46Y6GZ","created_at":"2026-05-18T12:29:17Z"}],"graph_snapshots":[{"event_id":"sha256:7bbc4b180b1d1cd5b3b426d817224918b8344a741b30ea134df390e1bcb279f1","target":"graph","created_at":"2026-05-18T01:32:02Z","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 have constrained the charge-mass ($\\varepsilon-m$) phase space of millicharged particles through the simulation of the rotational evolution of neutron stars, where an extra slow-down effect due to the accretions of millicharged dark matter particles is considered. For a canonical neutron star of $M=1.4~M_{\\odot}$ and $R=10~{\\rm km}$ with typical magnetic field strength $B_{0}=10^{12}$ G, we have shown an upper limit of millicharged particles, which is compatible with recently experimental and observational bounds. Meanwhile, we have also explored the influences on the $\\varepsilon-m$ phase ","authors_text":"Shao-Ze Li, Wei-Hua Wang, Xiao-Ping Zheng, Xi Huang","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-09-25T08:12:03Z","title":"Constraints on millicharged particles by neutron stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.07620","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:f63cb8fe3865ab1e3c860a10b3850afa6ae19fb92f0e773fe98b153d32f34b5b","target":"record","created_at":"2026-05-18T01:32:02Z","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":"15fe76a1a729e4b675a9f90a9faebbfa8e5f50424df5ae9a9ec4c97f11220ce8","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-09-25T08:12:03Z","title_canon_sha256":"7ea5fea7cb7a6c55a305dbc7ee98a4b79301a5e4ca66b9e880c36cd7a89772b1"},"schema_version":"1.0","source":{"id":"1509.07620","kind":"arxiv","version":1}},"canonical_sha256":"14b9ec78d92d20ee77144bbd107403f2e40ab246c33ceb302954612cd105fd44","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"14b9ec78d92d20ee77144bbd107403f2e40ab246c33ceb302954612cd105fd44","first_computed_at":"2026-05-18T01:32:02.311616Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:32:02.311616Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YNm5oTm92V8hqf41fVvInxn04C8qiopgRX0HGYpw5F1mR807e8RKJkGX42i33GKhGlvf8WGEbIRoBgKHsATCBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:32:02.312058Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.07620","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f63cb8fe3865ab1e3c860a10b3850afa6ae19fb92f0e773fe98b153d32f34b5b","sha256:7bbc4b180b1d1cd5b3b426d817224918b8344a741b30ea134df390e1bcb279f1"],"state_sha256":"f95d65d69e3d85b0687682c20f11f813ad5f379e3336239f66d0fee9679de3de"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3hHBhhOzWoXpskoa2GSC1tlqfahvUI/CdD1168De9Hsifhry2Tx5TlPO/77rD12lRjltK3cUo4JIIlVzg7xiAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T20:08:02.041508Z","bundle_sha256":"721eb3d2eb3d0ccada5a8ff77f6bb22adddd9eb18f8171781c9ae7388f8a213f"}}