Pith Number

pith:WVLX2JDY

pith:2012:WVLX2JDYMXLMCXOBKLPN65PELQ

not attested not anchored not stored refs pending

Asymptotically shearfree congruences in (2,2) spacetimes and Burgers' equation

George Sparling, Jonathan Holland

arxiv:1208.0216 v1 · 2012-08-01 · math.DG · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WVLX2JDYMXLMCXOBKLPN65PELQ}

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	2026-05-18T03:49:35.926778Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5577d247865d6c15dc152dedf75e45c01492c9db0acba6bd50a396e8f48f976

Aliases

arxiv: 1208.0216 · arxiv_version: 1208.0216v1 · doi: 10.48550/arxiv.1208.0216 · pith_short_12: WVLX2JDYMXLM · pith_short_16: WVLX2JDYMXLMCXOB · pith_short_8: WVLX2JDY

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/WVLX2JDYMXLMCXOBKLPN65PELQ \
  | 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: b5577d247865d6c15dc152dedf75e45c01492c9db0acba6bd50a396e8f48f976

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59817f144d89af4861acb9e82410672b9ece5482f4c7f6e72a2f3f3924838649",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2012-08-01T14:06:35Z",
    "title_canon_sha256": "3c99f4ed9098225f27cf513a0cde6954518289a5a0b413a4114f56530ba82ea5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0216",
    "kind": "arxiv",
    "version": 1
  }
}