{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:QTH6ZNYU7IKZETAE37K7L2JNTN","short_pith_number":"pith:QTH6ZNYU","canonical_record":{"source":{"id":"1203.5571","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-03-26T03:20:18Z","cross_cats_sorted":[],"title_canon_sha256":"3cfa81f907a6241cf981d1091a344056add7dcc3da9c6349153ba5c1518598c5","abstract_canon_sha256":"bdc77c997e745f739be990380071ec15f47b27d5810f06e7dd3f1d80fa464233"},"schema_version":"1.0"},"canonical_sha256":"84cfecb714fa15924c04dfd5f5e92d9b49fa2fdb7f00e3559bf8e3d50f4730ff","source":{"kind":"arxiv","id":"1203.5571","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.5571","created_at":"2026-05-18T01:58:01Z"},{"alias_kind":"arxiv_version","alias_value":"1203.5571v3","created_at":"2026-05-18T01:58:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.5571","created_at":"2026-05-18T01:58:01Z"},{"alias_kind":"pith_short_12","alias_value":"QTH6ZNYU7IKZ","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"QTH6ZNYU7IKZETAE","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"QTH6ZNYU","created_at":"2026-05-18T12:27:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:QTH6ZNYU7IKZETAE37K7L2JNTN","target":"record","payload":{"canonical_record":{"source":{"id":"1203.5571","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-03-26T03:20:18Z","cross_cats_sorted":[],"title_canon_sha256":"3cfa81f907a6241cf981d1091a344056add7dcc3da9c6349153ba5c1518598c5","abstract_canon_sha256":"bdc77c997e745f739be990380071ec15f47b27d5810f06e7dd3f1d80fa464233"},"schema_version":"1.0"},"canonical_sha256":"84cfecb714fa15924c04dfd5f5e92d9b49fa2fdb7f00e3559bf8e3d50f4730ff","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:01.953119Z","signature_b64":"crw0wPpdgVpTV2tMXrvvgiZG8TGA2Gt3xzjO0U1wiP8ViDdvdh4G5ALvgAKExqjIsRDzI0nXmzyuQkbc008pBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"84cfecb714fa15924c04dfd5f5e92d9b49fa2fdb7f00e3559bf8e3d50f4730ff","last_reissued_at":"2026-05-18T01:58:01.952689Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:01.952689Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1203.5571","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:58:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LXU4nZZPFd3KgmpnMeyYLlBejPNjoaChpewPbgKuuRK4aLRGUwJUKZstkXmm7q2l2oGX5o72T/eCqDSwHOcYBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T23:36:45.435588Z"},"content_sha256":"bee9106cdfc6e71f5ab08d5ae8799d6e9682cfce0923be81b27ab6ef7b14b4eb","schema_version":"1.0","event_id":"sha256:bee9106cdfc6e71f5ab08d5ae8799d6e9682cfce0923be81b27ab6ef7b14b4eb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:QTH6ZNYU7IKZETAE37K7L2JNTN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Tracing Magnetic Fields with Ground State Alignment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Lazarian, Huirong Yan","submitted_at":"2012-03-26T03:20:18Z","abstract_excerpt":"Observational studies of magnetic fields are vital as magnetic fields play a crucial role in various astrophysical processes, including star formation, accretion of matter, transport processes (e.g., transport of heat), and cosmic rays. We identified a process \"ground state alignment\" as a new way to determine the magnetic field direction in diffuse medium. The alignment is due to anisotropic radiation impinging on the atom/ion, while the magnetic field induces precession and realign the atom/ion and therefore the polarization of the emitted or absorbed radiation reflects the direction of the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.5571","kind":"arxiv","version":3},"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":"2026-05-18T01:58:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CdIYOnRDKqglglkgVHq81mhenI95FUkQ0r1SUjN1fC63nV6YP6ps+MN7Imxgo9VbxWtAreXFEkswqWvDxKnMCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T23:36:45.435944Z"},"content_sha256":"3a0457a06aa1276a0eaaf64af54571d9a0e239c95d90038dadbfb84ad71ce21e","schema_version":"1.0","event_id":"sha256:3a0457a06aa1276a0eaaf64af54571d9a0e239c95d90038dadbfb84ad71ce21e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QTH6ZNYU7IKZETAE37K7L2JNTN/bundle.json","state_url":"https://pith.science/pith/QTH6ZNYU7IKZETAE37K7L2JNTN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QTH6ZNYU7IKZETAE37K7L2JNTN/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":"2026-05-30T23:36:45Z","links":{"resolver":"https://pith.science/pith/QTH6ZNYU7IKZETAE37K7L2JNTN","bundle":"https://pith.science/pith/QTH6ZNYU7IKZETAE37K7L2JNTN/bundle.json","state":"https://pith.science/pith/QTH6ZNYU7IKZETAE37K7L2JNTN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QTH6ZNYU7IKZETAE37K7L2JNTN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:QTH6ZNYU7IKZETAE37K7L2JNTN","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":"bdc77c997e745f739be990380071ec15f47b27d5810f06e7dd3f1d80fa464233","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-03-26T03:20:18Z","title_canon_sha256":"3cfa81f907a6241cf981d1091a344056add7dcc3da9c6349153ba5c1518598c5"},"schema_version":"1.0","source":{"id":"1203.5571","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.5571","created_at":"2026-05-18T01:58:01Z"},{"alias_kind":"arxiv_version","alias_value":"1203.5571v3","created_at":"2026-05-18T01:58:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.5571","created_at":"2026-05-18T01:58:01Z"},{"alias_kind":"pith_short_12","alias_value":"QTH6ZNYU7IKZ","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"QTH6ZNYU7IKZETAE","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"QTH6ZNYU","created_at":"2026-05-18T12:27:18Z"}],"graph_snapshots":[{"event_id":"sha256:3a0457a06aa1276a0eaaf64af54571d9a0e239c95d90038dadbfb84ad71ce21e","target":"graph","created_at":"2026-05-18T01:58:01Z","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":"Observational studies of magnetic fields are vital as magnetic fields play a crucial role in various astrophysical processes, including star formation, accretion of matter, transport processes (e.g., transport of heat), and cosmic rays. We identified a process \"ground state alignment\" as a new way to determine the magnetic field direction in diffuse medium. The alignment is due to anisotropic radiation impinging on the atom/ion, while the magnetic field induces precession and realign the atom/ion and therefore the polarization of the emitted or absorbed radiation reflects the direction of the ","authors_text":"A. Lazarian, Huirong Yan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-03-26T03:20:18Z","title":"Tracing Magnetic Fields with Ground State Alignment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.5571","kind":"arxiv","version":3},"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:bee9106cdfc6e71f5ab08d5ae8799d6e9682cfce0923be81b27ab6ef7b14b4eb","target":"record","created_at":"2026-05-18T01:58:01Z","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":"bdc77c997e745f739be990380071ec15f47b27d5810f06e7dd3f1d80fa464233","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-03-26T03:20:18Z","title_canon_sha256":"3cfa81f907a6241cf981d1091a344056add7dcc3da9c6349153ba5c1518598c5"},"schema_version":"1.0","source":{"id":"1203.5571","kind":"arxiv","version":3}},"canonical_sha256":"84cfecb714fa15924c04dfd5f5e92d9b49fa2fdb7f00e3559bf8e3d50f4730ff","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"84cfecb714fa15924c04dfd5f5e92d9b49fa2fdb7f00e3559bf8e3d50f4730ff","first_computed_at":"2026-05-18T01:58:01.952689Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:01.952689Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"crw0wPpdgVpTV2tMXrvvgiZG8TGA2Gt3xzjO0U1wiP8ViDdvdh4G5ALvgAKExqjIsRDzI0nXmzyuQkbc008pBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:01.953119Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.5571","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bee9106cdfc6e71f5ab08d5ae8799d6e9682cfce0923be81b27ab6ef7b14b4eb","sha256:3a0457a06aa1276a0eaaf64af54571d9a0e239c95d90038dadbfb84ad71ce21e"],"state_sha256":"7baca4cf652a749904af0737c987a030cafc53182b6a8037b1cd47e6755751e7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dTZCIzaXscYhj3IOsNFha5UlnxfyYG3eGm7ECmABy1ekJx1KA4Bjbqwn8thnRkdf3HnMBOVGynz0oa3QgPqKBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T23:36:45.438259Z","bundle_sha256":"a7981e62b3086063106d92edcc35a77c6818f530add69e7ea4a40843881558e0"}}