Pith Number

pith:LHIBIQPK

pith:2019:LHIBIQPK6OMFDN6IRJCUZ6T262

not attested not anchored not stored refs pending

Finite element analysis for identifying the reaction coefficient in PDE from boundary observations

Tran Nhan Tam Quyen

arxiv:1902.01090 v2 · 2019-02-04 · math.NA · cs.NA · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LHIBIQPK6OMFDN6IRJCUZ6T262}

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	2026-05-17T23:42:48.499026Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59d01441eaf39851b7c88a454cfa7af6a8caab848a3be11c846bc29d4b722f5d

Aliases

arxiv: 1902.01090 · arxiv_version: 1902.01090v2 · doi: 10.48550/arxiv.1902.01090 · pith_short_12: LHIBIQPK6OMF · pith_short_16: LHIBIQPK6OMFDN6I · pith_short_8: LHIBIQPK

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/LHIBIQPK6OMFDN6IRJCUZ6T262 \
  | 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: 59d01441eaf39851b7c88a454cfa7af6a8caab848a3be11c846bc29d4b722f5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55259fe0a7104a6f07c4ba4ece34d863bf4c08361f5b26f6af51351cf113b08a",
    "cross_cats_sorted": [
      "cs.NA",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-02-04T09:06:35Z",
    "title_canon_sha256": "638d961f1f961dc3e519e39c1aeea09642593ba825ea34981e27591ea6fb83ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.01090",
    "kind": "arxiv",
    "version": 2
  }
}