Pith Number

pith:RF3NOYWS

pith:2017:RF3NOYWSF4YIHEUIMGOSH5AGCN

not attested not anchored not stored refs pending

On the apparent permeability of porous media in rarefied gas flows

Chang Liu, Kun Xu, Lefki Germanou, Lei Wu, M. T. Ho, Xiao-Jun Gu, Yonghao Zhang

arxiv:1704.03826 v1 · 2017-04-12 · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RF3NOYWSF4YIHEUIMGOSH5AGCN}

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	2026-05-18T00:38:55.556655Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8976d762d22f30839288619d23f406136300dcd442bd5256800410198184ea6d

Aliases

arxiv: 1704.03826 · arxiv_version: 1704.03826v1 · doi: 10.48550/arxiv.1704.03826 · pith_short_12: RF3NOYWSF4YI · pith_short_16: RF3NOYWSF4YIHEUI · pith_short_8: RF3NOYWS

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/RF3NOYWSF4YIHEUIMGOSH5AGCN \
  | 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: 8976d762d22f30839288619d23f406136300dcd442bd5256800410198184ea6d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "073f5e817378130add583a72cc7e97c8b399eff11148dfa0a365c8156b7b44ed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2017-04-12T16:40:03Z",
    "title_canon_sha256": "f2ea835ce3642412bae4858e2d38438b8a6c183710b6590c583ef8bccd3be33d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.03826",
    "kind": "arxiv",
    "version": 1
  }
}