Pith Number

pith:ERRHPTJA

pith:2015:ERRHPTJAD2WWA7ME57SQYOYQFZ

not attested not anchored not stored refs pending

On the coupling of DPG and BEM

Michael Karkulik, Norbert Heuer, Thomas F\"uhrer

arxiv:1508.00630 v1 · 2015-08-04 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ERRHPTJAD2WWA7ME57SQYOYQFZ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:35:53.820286Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

246277cd201ead607d84efe50c3b102e57496919f90a2844238a9ed6b1cfe9b7

Aliases

arxiv: 1508.00630 · arxiv_version: 1508.00630v1 · doi: 10.48550/arxiv.1508.00630 · pith_short_12: ERRHPTJAD2WW · pith_short_16: ERRHPTJAD2WWA7ME · pith_short_8: ERRHPTJA

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/ERRHPTJAD2WWA7ME57SQYOYQFZ \
  | 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: 246277cd201ead607d84efe50c3b102e57496919f90a2844238a9ed6b1cfe9b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef2f9edbb6a56f3b54eb381b4a7551c37aeb098f1445c958d89ec841e6d84419",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-08-04T00:26:48Z",
    "title_canon_sha256": "0991d3c6aa6ec7f6155bdb92f821d31ded062fb8a698cb88bf64ecb7ff3742c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.00630",
    "kind": "arxiv",
    "version": 1
  }
}