Pith Number

pith:J22DJUMD

pith:2018:J22DJUMD2ZOKZL4LUSVPN4RXXE

not attested not anchored not stored refs pending

Bernoulli free boundary problem for the infinity Laplacian

Graziano Crasta, Ilaria Fragal\`a

arxiv:1804.08573 v2 · 2018-04-23 · 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{J22DJUMD2ZOKZL4LUSVPN4RXXE}

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	2026-05-17T23:46:46.366105Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4eb434d183d65cacaf8ba4aaf6f237b912559561a5fee2224ca3415b872a2ad7

Aliases

arxiv: 1804.08573 · arxiv_version: 1804.08573v2 · doi: 10.48550/arxiv.1804.08573 · pith_short_12: J22DJUMD2ZOK · pith_short_16: J22DJUMD2ZOKZL4L · pith_short_8: J22DJUMD

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/J22DJUMD2ZOKZL4LUSVPN4RXXE \
  | 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: 4eb434d183d65cacaf8ba4aaf6f237b912559561a5fee2224ca3415b872a2ad7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31909a139463cff6004e9548ae6ec5ae7c446271bc21e6f962058e0c94c2c881",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-04-23T17:12:44Z",
    "title_canon_sha256": "9dbee5fcb43509a849468c989af4f7b7eb649632f10ea67e24ebad0e5b9fbc02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.08573",
    "kind": "arxiv",
    "version": 2
  }
}