Pith Number

pith:Y3PTG3E2

pith:2018:Y3PTG3E2RDD5N3BI6UF5JOAWVZ

not attested not anchored not stored refs pending

Application of effective medium theory to estimate gas permeability in tight-gas sandstones

Behzad Ghanbarian, Carlos Torres-Verdin, Larry W. Lake, Michael Marder

arxiv:1809.06722 v1 · 2018-09-17 · physics.geo-ph · 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{Y3PTG3E2RDD5N3BI6UF5JOAWVZ}

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	2026-05-17T23:40:43.657433Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6df336c9a88c7d6ec28f50bd4b816ae762ed76da8ea645f45b7fc259c85efca

Aliases

arxiv: 1809.06722 · arxiv_version: 1809.06722v1 · doi: 10.48550/arxiv.1809.06722 · pith_short_12: Y3PTG3E2RDD5 · pith_short_16: Y3PTG3E2RDD5N3BI · pith_short_8: Y3PTG3E2

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/Y3PTG3E2RDD5N3BI6UF5JOAWVZ \
  | 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: c6df336c9a88c7d6ec28f50bd4b816ae762ed76da8ea645f45b7fc259c85efca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1a5481788b90b062ec43eb9848280f75f689249548c0d797c00180b76c1d4ce",
    "cross_cats_sorted": [
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2018-09-17T00:45:21Z",
    "title_canon_sha256": "1b1c0c35534fa41430065d01eb0dea415da525e3f77ed18f0bade08dc1cdc7c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.06722",
    "kind": "arxiv",
    "version": 1
  }
}