Pith Number

pith:FVNF2U6V

pith:2014:FVNF2U6V77YRVF5QXVNY5YC3UH

not attested not anchored not stored refs pending

Perron's solutions for two-phase free boundary problems with distributed sources

Daniela De Silva, Fausto Ferrari, Sandro Salsa

arxiv:1411.4637 v1 · 2014-11-17 · 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{FVNF2U6V77YRVF5QXVNY5YC3UH}

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	2026-05-18T02:35:45.278669Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d5a5d53d5fff11a97b0bd5b8ee05ba1dac90a787ee6d756082d3d688e76f7e2

Aliases

arxiv: 1411.4637 · arxiv_version: 1411.4637v1 · doi: 10.48550/arxiv.1411.4637 · pith_short_12: FVNF2U6V77YR · pith_short_16: FVNF2U6V77YRVF5Q · pith_short_8: FVNF2U6V

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/FVNF2U6V77YRVF5QXVNY5YC3UH \
  | 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: 2d5a5d53d5fff11a97b0bd5b8ee05ba1dac90a787ee6d756082d3d688e76f7e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de84d3cd0861302158662081b72b703622ef70bb2a2f4c465956b5bd442287a3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2014-11-17T20:46:43Z",
    "title_canon_sha256": "a12f516535b867bc431835eb370f4f4712142b57177575e489dcaa0392eae57c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.4637",
    "kind": "arxiv",
    "version": 1
  }
}