Pith Number

pith:Z7MYUORS

pith:2013:Z7MYUORSZHTRH2BQDUUZPY7Y4T

not attested not anchored not stored refs pending

Sandpiles and Superconductors: Nonconforming Linear Finite Element Approximations for Mixed Formulations of Quasi-Variational Inequalities

John W. Barrett, Leonid Prigozhin

arxiv:1306.4455 v1 · 2013-06-19 · 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{Z7MYUORSZHTRH2BQDUUZPY7Y4T}

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	2026-05-18T03:20:34.402299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfd98a3a32c9e713e8301d2997e3f8e4ebd21de21c01d574427c1a3d0eb1791a

Aliases

arxiv: 1306.4455 · arxiv_version: 1306.4455v1 · doi: 10.48550/arxiv.1306.4455 · pith_short_12: Z7MYUORSZHTR · pith_short_16: Z7MYUORSZHTRH2BQ · pith_short_8: Z7MYUORS

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/Z7MYUORSZHTRH2BQDUUZPY7Y4T \
  | 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: cfd98a3a32c9e713e8301d2997e3f8e4ebd21de21c01d574427c1a3d0eb1791a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93b85970bacf996a7119ca26ec71b54a8c12b1988d45fb398b7cec6bc6c99fcc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-06-19T08:44:12Z",
    "title_canon_sha256": "4d51cd434c0c74f2b98b37cdcba4019fb47919d44fc21fd05c44a5c5b68388ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.4455",
    "kind": "arxiv",
    "version": 1
  }
}