Pith Number

pith:6XZG4SQS

pith:2016:6XZG4SQSQG6VE4F5X7I7E6ZDW3

not attested not anchored not stored refs pending

The DPG methodology applied to different variational formulations of linear elasticity

Brendan Keith, Federico Fuentes, Leszek Demkowicz

arxiv:1601.07937 v2 · 2016-01-28 · math.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{6XZG4SQSQG6VE4F5X7I7E6ZDW3}

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	2026-05-18T00:55:28.595611Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5f26e4a1281bd5270bdbfd1f27b23b6f1e360b3cb609faa79008f2a8935e199

Aliases

arxiv: 1601.07937 · arxiv_version: 1601.07937v2 · doi: 10.48550/arxiv.1601.07937 · pith_short_12: 6XZG4SQSQG6V · pith_short_16: 6XZG4SQSQG6VE4F5 · pith_short_8: 6XZG4SQS

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/6XZG4SQSQG6VE4F5X7I7E6ZDW3 \
  | 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: f5f26e4a1281bd5270bdbfd1f27b23b6f1e360b3cb609faa79008f2a8935e199

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3877e303b51747872778667ee3377f6995417ff712ed674e02ae7a14bab91589",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-01-28T22:16:23Z",
    "title_canon_sha256": "716f04ad3fef00763dff79f40974951dc0baec6d7406bf28d4d951cca412472d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.07937",
    "kind": "arxiv",
    "version": 2
  }
}