Pith Number

pith:WTFNBLAL

pith:2017:WTFNBLALR6NPWGTLS3HGJ3FZ7T

not attested not anchored not stored refs pending

Energy stable discretization of Allen-Cahn type problems modeling the motion of phase boundaries

Anke B\"ottcher, Herbert Egger

arxiv:1703.02778 v1 · 2017-03-08 · 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{WTFNBLALR6NPWGTLS3HGJ3FZ7T}

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	2026-05-18T00:49:05.643760Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4cad0ac0b8f9afb1a6b96ce64ecb9fceebefc41bf41e9d620a7df8fe9ff44c6

Aliases

arxiv: 1703.02778 · arxiv_version: 1703.02778v1 · doi: 10.48550/arxiv.1703.02778 · pith_short_12: WTFNBLALR6NP · pith_short_16: WTFNBLALR6NPWGTL · pith_short_8: WTFNBLAL

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/WTFNBLALR6NPWGTLS3HGJ3FZ7T \
  | 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: b4cad0ac0b8f9afb1a6b96ce64ecb9fceebefc41bf41e9d620a7df8fe9ff44c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06a49e0a2fb017fa5e6ca05a4dac8c5aa506ee4930242f9b5b8c3266b9576ac7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-03-08T10:37:41Z",
    "title_canon_sha256": "a2eea742269227591d0cad0a537899c18b1df1d196a0844727cce5fa048ae5cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.02778",
    "kind": "arxiv",
    "version": 1
  }
}