Pith Number

pith:I34SVCYE

pith:2011:I34SVCYEZCYWB6D5K5AEWJEVGV

not attested not anchored not stored refs pending

Matsumoto metrics of constant flag curvature are trivial

B. Rezaei, M. Rafie-Rad

arxiv:1109.2754 v3 · 2011-09-13 · math.DG · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I34SVCYEZCYWB6D5K5AEWJEVGV}

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	2026-05-18T03:50:35.535641Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46f92a8b04c8b160f87d57404b2495355023ddf06699ac8884cda5dbe0e38f8e

Aliases

arxiv: 1109.2754 · arxiv_version: 1109.2754v3 · doi: 10.48550/arxiv.1109.2754 · pith_short_12: I34SVCYEZCYW · pith_short_16: I34SVCYEZCYWB6D5 · pith_short_8: I34SVCYE

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/I34SVCYEZCYWB6D5K5AEWJEVGV \
  | 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: 46f92a8b04c8b160f87d57404b2495355023ddf06699ac8884cda5dbe0e38f8e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80f520d71abd9022b67c3def33a60606540bfca517ba9f1ac3ea38fc6bc2408f",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-09-13T12:06:34Z",
    "title_canon_sha256": "443f2e73939d30d243b7fa0a410981e6628775ce7c765a1a0d54d2079a082f4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.2754",
    "kind": "arxiv",
    "version": 3
  }
}