Pith Number

pith:LFCER4NU

pith:2018:LFCER4NUTHSQPD275GKZP22DFQ

not attested not anchored not stored refs pending

Optimal artificial boundary condition for random elliptic media

Felix Otto, Jianfeng Lu

arxiv:1803.09593 v1 · 2018-03-26 · math.NA · 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{LFCER4NUTHSQPD275GKZP22DFQ}

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	2026-05-18T00:20:10.961239Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

594448f1b499e5078f5fe99597eb432c13260b7ec6570880893c5c9f5e2e9a5a

Aliases

arxiv: 1803.09593 · arxiv_version: 1803.09593v1 · doi: 10.48550/arxiv.1803.09593 · pith_short_12: LFCER4NUTHSQ · pith_short_16: LFCER4NUTHSQPD27 · pith_short_8: LFCER4NU

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/LFCER4NUTHSQPD275GKZP22DFQ \
  | 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: 594448f1b499e5078f5fe99597eb432c13260b7ec6570880893c5c9f5e2e9a5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf804edaa3de6b0737d34d7694f27c0d325cd3344f6360a9b072cfd487d1cc32",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-03-26T13:51:56Z",
    "title_canon_sha256": "916a6030a0e4881dde33bc7a7987beb8fb68220727a1f5a3bf385b1d244bd414"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.09593",
    "kind": "arxiv",
    "version": 1
  }
}