Pith Number

pith:HNUXD5H7

pith:2013:HNUXD5H74SPPPFLGFVFWBKQW5W

not attested not anchored not stored refs pending

PDEs with Compressed Solutions

Giang Tran, Hayden Schaeffer, Russel E. Caflisch, Stanley J. Osher

arxiv:1311.5850 v2 · 2013-11-22 · 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{HNUXD5H74SPPPFLGFVFWBKQW5W}

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	2026-05-18T02:46:04.531817Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b6971f4ffe49ef795662d4b60aa16ed8329d6ec10357cb3a655c659b58edcf9

Aliases

arxiv: 1311.5850 · arxiv_version: 1311.5850v2 · doi: 10.48550/arxiv.1311.5850 · pith_short_12: HNUXD5H74SPP · pith_short_16: HNUXD5H74SPPPFLG · pith_short_8: HNUXD5H7

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/HNUXD5H74SPPPFLGFVFWBKQW5W \
  | 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: 3b6971f4ffe49ef795662d4b60aa16ed8329d6ec10357cb3a655c659b58edcf9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5e2ba45ed90913d963a55fa78dd656c18b0dc55703d05e153197cbe80c3c335",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-11-22T19:32:42Z",
    "title_canon_sha256": "81a07790b56bcd8b078016855f87629de470fb7f4afd30cb80ae9eb0c671a91e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.5850",
    "kind": "arxiv",
    "version": 2
  }
}