Pith Number

pith:VQFXICPA

pith:2016:VQFXICPANSRMBZ3VC6JMGTLX4H

not attested not anchored not stored refs pending

A Cut Finite Element Method for the Bernoulli Free Boundary Value Problem

Daniel Elfverson, Erik Burman, Karl Larsson, Mats G. Larson, Peter Hansbo

arxiv:1609.02836 v1 · 2016-09-09 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VQFXICPANSRMBZ3VC6JMGTLX4H}

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	2026-05-18T00:47:10.825184Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac0b7409e06ca2c0e7751792c34d77e1fac8f92340667e3e5645612d0ccc17c6

Aliases

arxiv: 1609.02836 · arxiv_version: 1609.02836v1 · doi: 10.48550/arxiv.1609.02836 · pith_short_12: VQFXICPANSRM · pith_short_16: VQFXICPANSRMBZ3V · pith_short_8: VQFXICPA

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/VQFXICPANSRMBZ3VC6JMGTLX4H \
  | 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: ac0b7409e06ca2c0e7751792c34d77e1fac8f92340667e3e5645612d0ccc17c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5309bb0399c0f05314d7740835d0a9d3a9569a1a9a433f99159af8810d4babef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-09-09T15:42:33Z",
    "title_canon_sha256": "f1c5c3473cfa4a674b25e58b67c29a8f46e07ccd9f7499690811dffc76074de4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.02836",
    "kind": "arxiv",
    "version": 1
  }
}