Pith Number

pith:NAXQQQGW

pith:2012:NAXQQQGW3NIYRENEIK2NHIAY4G

not attested not anchored not stored refs pending

Regularity for degenerate two-phase free boundary problems

Eduardo V. Teixeira, Olivaine S. de Queiroz, Raimundo Leit\~ao

arxiv:1202.5264 v2 · 2012-02-23 · 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{NAXQQQGW3NIYRENEIK2NHIAY4G}

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	2026-05-18T03:20:35.712767Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

682f0840d6db518891a442b4d3a018e1a2dabf301a245a899f85d666bcc1fe36

Aliases

arxiv: 1202.5264 · arxiv_version: 1202.5264v2 · doi: 10.48550/arxiv.1202.5264 · pith_short_12: NAXQQQGW3NIY · pith_short_16: NAXQQQGW3NIYRENE · pith_short_8: NAXQQQGW

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/NAXQQQGW3NIYRENEIK2NHIAY4G \
  | 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: 682f0840d6db518891a442b4d3a018e1a2dabf301a245a899f85d666bcc1fe36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "464f42dd7ecee0bc4297aeb4ef12d68dfaa993a9b6e9497764f82106ef8618fc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2012-02-23T18:58:39Z",
    "title_canon_sha256": "ae434549e73784a4a7da33d4477cba5033fbe15dc0347eb5676c798c3cbf7a50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.5264",
    "kind": "arxiv",
    "version": 2
  }
}