Pith Number

pith:HEPO7KDZ

pith:2013:HEPO7KDZ3PGF3WUJJOM44ZX63W

not attested not anchored not stored refs pending

Gelfand type problem for two phase porous media

Peter V. Gordon, Vitaly Moroz

arxiv:1308.5577 v2 · 2013-08-26 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HEPO7KDZ3PGF3WUJJOM44ZX63W}

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	2026-05-18T01:37:08.073462Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

391eefa879dbcc5dda894b99ce66fedd95f543ccce7afa5fb44f456eaaf2b703

Aliases

arxiv: 1308.5577 · arxiv_version: 1308.5577v2 · doi: 10.48550/arxiv.1308.5577 · pith_short_12: HEPO7KDZ3PGF · pith_short_16: HEPO7KDZ3PGF3WUJ · pith_short_8: HEPO7KDZ

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/HEPO7KDZ3PGF3WUJJOM44ZX63W \
  | 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: 391eefa879dbcc5dda894b99ce66fedd95f543ccce7afa5fb44f456eaaf2b703

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11d5db06901d71bbf800970c96d9e813abbcaa75b6509ff086f89148d8a4f00e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-08-26T13:21:18Z",
    "title_canon_sha256": "fcf2aaa8b960d317f7e1542c5ff1c6c6b25534cc9e68dcfdbe0308cc2e024e7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.5577",
    "kind": "arxiv",
    "version": 2
  }
}