Pith Number

pith:D7FYG2WR

pith:2016:D7FYG2WR7M5NIW5L3JHOGZSFOR

not attested not anchored not stored refs pending

Gaussian curvature as an identifier of shell rigidity

Davit Harutyunyan

arxiv:1606.03613 v4 · 2016-06-11 · 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{D7FYG2WR7M5NIW5L3JHOGZSFOR}

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	2026-05-18T00:39:02.737943Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1fcb836ad1fb3ad45babda4ee366457452c9fa12f56dc5136a2df5e2fd13773c

Aliases

arxiv: 1606.03613 · arxiv_version: 1606.03613v4 · doi: 10.48550/arxiv.1606.03613 · pith_short_12: D7FYG2WR7M5N · pith_short_16: D7FYG2WR7M5NIW5L · pith_short_8: D7FYG2WR

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/D7FYG2WR7M5NIW5L3JHOGZSFOR \
  | 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: 1fcb836ad1fb3ad45babda4ee366457452c9fa12f56dc5136a2df5e2fd13773c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0469bec0bbdc44203d11920878f21d901dcd8bb3fbd8c1a92fc04d6f4c9ae661",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2016-06-11T16:52:10Z",
    "title_canon_sha256": "3f92f08a51b305b0b756c80d119cddb651d21c178e0c64449d0c18b33cf88d79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.03613",
    "kind": "arxiv",
    "version": 4
  }
}