Pith Number

pith:LGKOOMLQ

pith:2009:LGKOOMLQ7WUKTKTMMHVJKB4BQG

not attested not anchored not stored refs pending

Gradient recovery in adaptive finite element methods for parabolic problems

Omar Lakkis, Tristan Pryer

arxiv:0905.2764 v2 · 2009-05-17 · 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{LGKOOMLQ7WUKTKTMMHVJKB4BQG}

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	2026-05-18T02:24:55.706356Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5994e73170fda8a9aa6c61ea950781818c9057b696192610d85aef60a775299e

Aliases

arxiv: 0905.2764 · arxiv_version: 0905.2764v2 · doi: 10.48550/arxiv.0905.2764 · pith_short_12: LGKOOMLQ7WUK · pith_short_16: LGKOOMLQ7WUKTKTM · pith_short_8: LGKOOMLQ

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/LGKOOMLQ7WUKTKTMMHVJKB4BQG \
  | 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: 5994e73170fda8a9aa6c61ea950781818c9057b696192610d85aef60a775299e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "744195d4ee367c694607dbe35bf719c3ceb8a213812c43e35220be0127fefad9",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2009-05-17T19:14:56Z",
    "title_canon_sha256": "9ec393c7301cd49a04f95dd82d246a41f4d1ce852d857ac3c7eee2b4eaa9edf7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.2764",
    "kind": "arxiv",
    "version": 2
  }
}