Pith Number

pith:QMSD4L3J

pith:2012:QMSD4L3JKESQSF76GRZ3PHACGF

not attested not anchored not stored refs pending

Relation Between First Arrival Time and Permeability in Self-Affine Fractures with Areas in Contact

Alex Hansen (FAST), Harold Auradou (FAST), Laurent Talon (FAST)

arxiv:1202.5439 v1 · 2012-02-24 · 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{QMSD4L3JKESQSF76GRZ3PHACGF}

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	2026-05-18T01:58:19.927296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83243e2f6951250917fe3473b79c02315c12654c0ed02c4438aa973a59eb7175

Aliases

arxiv: 1202.5439 · arxiv_version: 1202.5439v1 · doi: 10.48550/arxiv.1202.5439 · pith_short_12: QMSD4L3JKESQ · pith_short_16: QMSD4L3JKESQSF76 · pith_short_8: QMSD4L3J

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/QMSD4L3JKESQSF76GRZ3PHACGF \
  | 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: 83243e2f6951250917fe3473b79c02315c12654c0ed02c4438aa973a59eb7175

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a913f8c2f8e5ffd1367fdf302077da5d801dd67b5e5139cc21286c0e482d51ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2012-02-24T12:57:39Z",
    "title_canon_sha256": "4ea10aba44a29c261599f3a3ea0d78319b90333500631a4c1e92ad813edd3863"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.5439",
    "kind": "arxiv",
    "version": 1
  }
}