Pith Number

pith:DTHMGU4M

pith:2007:DTHMGU4MQHDDASV3USAEQI4QRX

not attested not anchored not stored refs pending

An accurate finite element method for elliptic interface problems

Gunther H. Peichl, Rachid Touzani

arxiv:0707.1559 v1 · 2007-07-11 · math.NA · cs.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{DTHMGU4MQHDDASV3USAEQI4QRX}

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	2026-06-03T22:06:01.488959Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ccec3538c81c6304abba4804823908dd0cb3774543c4431d7d82f4cb1a72259

Aliases

arxiv: 0707.1559 · arxiv_version: 0707.1559v1 · doi: 10.48550/arxiv.0707.1559 · pith_short_12: DTHMGU4MQHDD · pith_short_16: DTHMGU4MQHDDASV3 · pith_short_8: DTHMGU4M

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/DTHMGU4MQHDDASV3USAEQI4QRX \
  | 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: 1ccec3538c81c6304abba4804823908dd0cb3774543c4431d7d82f4cb1a72259

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b76ad63e07ed9485e7ed1bdcda8ac256354d81371eb8ccff92221c02d8427c38",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "",
    "primary_cat": "math.NA",
    "submitted_at": "2007-07-11T05:07:27Z",
    "title_canon_sha256": "2c2f2f2edcd74d9ddc33ae3c7c93fed51228ac797de31f13a3cbf656af7e8356"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0707.1559",
    "kind": "arxiv",
    "version": 1
  }
}