Pith Number

pith:65Y55LWE

pith:2013:65Y55LWESDFEKFQJTRFTU7X2W6

not attested not anchored not stored refs pending

A general class of free boundary problems for fully nonlinear parabolic equations

Alessio Figalli, Henrik Shahgholian

arxiv:1309.0782 v1 · 2013-09-03 · 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{65Y55LWESDFEKFQJTRFTU7X2W6}

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	2026-05-18T01:47:50.267159Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f771deaec490ca4516099c4b3a7efab78b956574207285c8d27e2b388031d024

Aliases

arxiv: 1309.0782 · arxiv_version: 1309.0782v1 · doi: 10.48550/arxiv.1309.0782 · pith_short_12: 65Y55LWESDFE · pith_short_16: 65Y55LWESDFEKFQJ · pith_short_8: 65Y55LWE

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/65Y55LWESDFEKFQJTRFTU7X2W6 \
  | 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: f771deaec490ca4516099c4b3a7efab78b956574207285c8d27e2b388031d024

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8897eaa36e1a59f33f2d7d67c5fd4af10d71974c63e2a9c62888994f47f92c3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-09-03T19:22:38Z",
    "title_canon_sha256": "e2f2aa6a356bf45c9e6dbeb6933d6e7d73896cc48893da0ef36a9be2c35761fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.0782",
    "kind": "arxiv",
    "version": 1
  }
}