{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:W6SO4HWTG3GWYCNZFVVGXDVIFP","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":"4ef78eb6f1df48a44546463cd4464f064db893f03035e81ef51a90dd768b0c0b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2009-04-10T13:53:41Z","title_canon_sha256":"2da57ef3e9e1cdcaebfb58b34f8a715d49a83173465b65baa23dc6ac24addef0"},"schema_version":"1.0","source":{"id":"0904.1689","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.1689","created_at":"2026-05-18T02:14:06Z"},{"alias_kind":"arxiv_version","alias_value":"0904.1689v2","created_at":"2026-05-18T02:14:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.1689","created_at":"2026-05-18T02:14:06Z"},{"alias_kind":"pith_short_12","alias_value":"W6SO4HWTG3GW","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"W6SO4HWTG3GWYCNZ","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"W6SO4HWT","created_at":"2026-05-18T12:26:02Z"}],"graph_snapshots":[{"event_id":"sha256:b38dc1e69bc6cc4ec8e415d5aea468f9d1ec88f94e4dd52d0c2d8abb76cc736f","target":"graph","created_at":"2026-05-18T02:14:06Z","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":"By use of a novel experimental design, one that provides for superfluid helium in contact with bulk hcp 4He off the melting curve, we have observed the DC transport of mass through a cell filled with solid 4He in the hcp region of the phase diagram. Flow, which shows characteristics of a superflow, is seen to be independent of the method used to grow the solid, but depends on pressure and temperature. The temperature dependence suggests the possibility of hysteresis.","authors_text":"M.W. Ray, R.B. Hallock","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2009-04-10T13:53:41Z","title":"Observation of Mass Transport through Solid 4He"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.1689","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:de2a813ac667bcbad8108efd4f5501dcb4da82f2bc6be13d14a6c915e09b60f8","target":"record","created_at":"2026-05-18T02:14:06Z","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":"4ef78eb6f1df48a44546463cd4464f064db893f03035e81ef51a90dd768b0c0b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2009-04-10T13:53:41Z","title_canon_sha256":"2da57ef3e9e1cdcaebfb58b34f8a715d49a83173465b65baa23dc6ac24addef0"},"schema_version":"1.0","source":{"id":"0904.1689","kind":"arxiv","version":2}},"canonical_sha256":"b7a4ee1ed336cd6c09b92d6a6b8ea82bf118cf6f7d699b98d70cd7c054ae1988","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b7a4ee1ed336cd6c09b92d6a6b8ea82bf118cf6f7d699b98d70cd7c054ae1988","first_computed_at":"2026-05-18T02:14:06.539697Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:14:06.539697Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1eopkZWNTND/vwgXl5t74RvQ0T5FpL4aUmjklZS0SVdoR9AvbKG9jtJoblioiGvIJ3+sf4dFlZ5+QDmSalr6CQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:14:06.540272Z","signed_message":"canonical_sha256_bytes"},"source_id":"0904.1689","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:de2a813ac667bcbad8108efd4f5501dcb4da82f2bc6be13d14a6c915e09b60f8","sha256:b38dc1e69bc6cc4ec8e415d5aea468f9d1ec88f94e4dd52d0c2d8abb76cc736f"],"state_sha256":"6e8ebb1eba034f0b958d45e8eac1780c04f393d750474e255e1d97c34f301268"}