Pith Number

pith:Z7MXROGV

pith:2014:Z7MXROGVMAFNDESA62OFZUVBJL

not attested not anchored not stored refs pending

Explicit examples of extremal quasiconvex quadratic forms that are not polyconvex

Davit Harutyunyan, Graeme Walter Milton

arxiv:1403.3718 v3 · 2014-03-14 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z7MXROGVMAFNDESA62OFZUVBJL}

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	2026-05-18T00:56:51.469005Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfd978b8d5600ad19240f69c5cd2a14ac25c9655bd14f94e044d53110e02b9d2

Aliases

arxiv: 1403.3718 · arxiv_version: 1403.3718v3 · doi: 10.48550/arxiv.1403.3718 · pith_short_12: Z7MXROGVMAFN · pith_short_16: Z7MXROGVMAFNDESA · pith_short_8: Z7MXROGV

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/Z7MXROGVMAFNDESA62OFZUVBJL \
  | 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: cfd978b8d5600ad19240f69c5cd2a14ac25c9655bd14f94e044d53110e02b9d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1f4e04754752638bd998662a2965513956bbc267221bfec494dbf9e4449005d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2014-03-14T22:28:25Z",
    "title_canon_sha256": "1933cc28fe3c4dc52dba8ab8e03a9258d689c274ad86acd933d067051346ef29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.3718",
    "kind": "arxiv",
    "version": 3
  }
}