Pith Number

pith:5QHDZEFU

pith:2011:5QHDZEFUTLEBLJKVPOFK2KLLQ3

not attested not anchored not stored refs pending

Effects of $^3$He Impurity on Solid $^4$He Studied by Compound Torsional Oscillator

D. Ruffner, H. Kojima, M.C. Keiderling, P. Gumann

arxiv:1102.2371 v1 · 2011-02-11 · cond-mat.other · cond-mat.dis-nn

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5QHDZEFUTLEBLJKVPOFK2KLLQ3}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:03:12.063727Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec0e3c90b49ac815a5557b8aad296b86dcda0b1c6d81cfef92fc985aa10bdd77

Aliases

arxiv: 1102.2371 · arxiv_version: 1102.2371v1 · doi: 10.48550/arxiv.1102.2371 · pith_short_12: 5QHDZEFUTLEB · pith_short_16: 5QHDZEFUTLEBLJKV · pith_short_8: 5QHDZEFU

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/5QHDZEFUTLEBLJKVPOFK2KLLQ3 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: ec0e3c90b49ac815a5557b8aad296b86dcda0b1c6d81cfef92fc985aa10bdd77

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57a2f9fe271ab891fd3f9e03abe31f322ab232af736604e5d14c8c0cc2c4824a",
    "cross_cats_sorted": [
      "cond-mat.dis-nn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.other",
    "submitted_at": "2011-02-11T15:36:45Z",
    "title_canon_sha256": "a5e7eb0043f59eff77e6086818cbc7b1d1e459f0d7e97a070990e14e57a78db6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.2371",
    "kind": "arxiv",
    "version": 1
  }
}