Pith Number

pith:F3EH76J3

pith:2018:F3EH76J3ZEAKZPHCNITM67DVYY

not attested not anchored not stored refs pending

On volumes of hyperideal tetrahedra with constrained edge lengths

Marco Moraschini, Roberto Frigerio

arxiv:1801.05326 v3 · 2018-01-16 · math.GT · math.DG · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F3EH76J3ZEAKZPHCNITM67DVYY}

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	2026-05-17T23:48:53.016674Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ec87ff93bc900acbce26a26cf7c75c620003fbe03b254304e5f1dd502cdc670

Aliases

arxiv: 1801.05326 · arxiv_version: 1801.05326v3 · doi: 10.48550/arxiv.1801.05326 · pith_short_12: F3EH76J3ZEAK · pith_short_16: F3EH76J3ZEAKZPHC · pith_short_8: F3EH76J3

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/F3EH76J3ZEAKZPHCNITM67DVYY \
  | 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: 2ec87ff93bc900acbce26a26cf7c75c620003fbe03b254304e5f1dd502cdc670

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2176cdcd05499da1271adf2a433235d26e9b645d6b50227038c86b8b707c43be",
    "cross_cats_sorted": [
      "math.DG",
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2018-01-16T15:50:39Z",
    "title_canon_sha256": "6427e9eae8dfc837f2e5a8628a5511b51a46a28c3f322ee0cc92c78829c349c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.05326",
    "kind": "arxiv",
    "version": 3
  }
}