Pith Number

pith:FTKIQIDN

pith:2013:FTKIQIDNMWQGG3UPVJS26F7UPC

not attested not anchored not stored refs pending

Estimates for measures of sections of convex bodies

Alexander Koldobsky

arxiv:1309.6485 v1 · 2013-09-25 · 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{FTKIQIDNMWQGG3UPVJS26F7UPC}

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	2026-05-18T03:12:20.906839Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2cd488206d65a0636e8faa65af17f478848d61d1770e23be8697e2401d4ab611

Aliases

arxiv: 1309.6485 · arxiv_version: 1309.6485v1 · doi: 10.48550/arxiv.1309.6485 · pith_short_12: FTKIQIDNMWQG · pith_short_16: FTKIQIDNMWQGG3UP · pith_short_8: FTKIQIDN

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/FTKIQIDNMWQGG3UPVJS26F7UPC \
  | 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: 2cd488206d65a0636e8faa65af17f478848d61d1770e23be8697e2401d4ab611

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "258763b2e4a18e6c6f0921b467608bf25166ff8cd8c48454fbedc691de310a35",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2013-09-25T12:40:29Z",
    "title_canon_sha256": "fe527a4d221e71da3d3cbde64852876060fa74224902279adb89d0c06de9dfa5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.6485",
    "kind": "arxiv",
    "version": 1
  }
}