Pith Number

pith:2F3NV7BV

pith:2013:2F3NV7BV2O3GJZL5GPHV7PPHAR

not attested not anchored not stored refs pending

Improved well-posedness for the quadratic derivative nonlinear wave equation in 2D

Allison Tanguay, Viktor Grigoryan

arxiv:1308.1719 v3 · 2013-08-08 · 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{2F3NV7BV2O3GJZL5GPHV7PPHAR}

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	2026-05-18T00:27:33.930853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d176dafc35d3b664e57d33cf5fbde704718ee881a5b7a3d50bd6a73d7e019843

Aliases

arxiv: 1308.1719 · arxiv_version: 1308.1719v3 · doi: 10.48550/arxiv.1308.1719 · pith_short_12: 2F3NV7BV2O3G · pith_short_16: 2F3NV7BV2O3GJZL5 · pith_short_8: 2F3NV7BV

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/2F3NV7BV2O3GJZL5GPHV7PPHAR \
  | 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: d176dafc35d3b664e57d33cf5fbde704718ee881a5b7a3d50bd6a73d7e019843

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7cf04aa17181efb90d78b644151aa1c16c73c9a1ac09a76ed4f8772b170e1d62",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-08-08T00:16:06Z",
    "title_canon_sha256": "b205164736f78490e62867edeabd3468f36accf3d29cd31fc559073efdf10779"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.1719",
    "kind": "arxiv",
    "version": 3
  }
}