Pith Number

pith:V52TUSYI

pith:2012:V52TUSYI32T2Q5NIYCFIV7IY7K

not attested not anchored not stored refs pending

On curves contained in convex subsets of the plane

Alex Ravsky, Don Coppersmith, Gyozo Nagy

arxiv:1205.0663 v1 · 2012-05-03 · 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{V52TUSYI32T2Q5NIYCFIV7IY7K}

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	2026-05-18T03:56:25.309268Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af753a4b08dea7a875a8c08a8afd18fa9bcaa963966823980f7b0b3bc74b7ff2

Aliases

arxiv: 1205.0663 · arxiv_version: 1205.0663v1 · doi: 10.48550/arxiv.1205.0663 · pith_short_12: V52TUSYI32T2 · pith_short_16: V52TUSYI32T2Q5NI · pith_short_8: V52TUSYI

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/V52TUSYI32T2Q5NIYCFIV7IY7K \
  | 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: af753a4b08dea7a875a8c08a8afd18fa9bcaa963966823980f7b0b3bc74b7ff2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "078590ac9e04addd2250212c50438cda15f2aa048a673a9094618eefe566ff37",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2012-05-03T09:47:59Z",
    "title_canon_sha256": "11a9a93c3a0bd5b2825113103450c0815abb75d04a3cb49305928aa3e1c18b94"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.0663",
    "kind": "arxiv",
    "version": 1
  }
}