Pith Number

pith:CPX7FWOL

pith:2011:CPX7FWOLCJ4HXF4DUDMN3DER72

not attested not anchored not stored refs pending

An affine characterization of quadratic curves

Thomas Binder

arxiv:1110.6551 v1 · 2011-10-29 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CPX7FWOLCJ4HXF4DUDMN3DER72}

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	2026-05-18T04:09:55.321101Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13eff2d9cb12787b9783a0d8dd8c91fe9c96ccb2375a42fb757188ef5b8c5c49

Aliases

arxiv: 1110.6551 · arxiv_version: 1110.6551v1 · doi: 10.48550/arxiv.1110.6551 · pith_short_12: CPX7FWOLCJ4H · pith_short_16: CPX7FWOLCJ4HXF4D · pith_short_8: CPX7FWOL

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/CPX7FWOLCJ4HXF4DUDMN3DER72 \
  | 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: 13eff2d9cb12787b9783a0d8dd8c91fe9c96ccb2375a42fb757188ef5b8c5c49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f67d8964f6e4728fa01164c1dba4b936dcf43c5d6dff6fc8644b674172edb79",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-10-29T20:25:19Z",
    "title_canon_sha256": "1bf415677e4c9ad7709d5f59f5389ad16ad0554117a7742391906fb04d179a58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.6551",
    "kind": "arxiv",
    "version": 1
  }
}