Pith Number

pith:CS7M2S6I

pith:2011:CS7M2S6IYGG4U6CIJUXCACJTB2

not attested not anchored not stored refs pending

Fitting lines to points in the plane

Annett Puettmann

arxiv:1109.4243 v1 · 2011-09-20 · math.OC · 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{CS7M2S6IYGG4U6CIJUXCACJTB2}

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	2026-05-18T04:12:43.783865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14becd4bc8c18dca78484d2e2009330eab67a1d8a6e64898cb41c1462aa38a21

Aliases

arxiv: 1109.4243 · arxiv_version: 1109.4243v1 · doi: 10.48550/arxiv.1109.4243 · pith_short_12: CS7M2S6IYGG4 · pith_short_16: CS7M2S6IYGG4U6CI · pith_short_8: CS7M2S6I

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/CS7M2S6IYGG4U6CIJUXCACJTB2 \
  | 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: 14becd4bc8c18dca78484d2e2009330eab67a1d8a6e64898cb41c1462aa38a21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a144c65dc4e4e6d4a2854f0639e64fde1457470332fb968e8ac6e32bbed1a0cd",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2011-09-20T09:07:20Z",
    "title_canon_sha256": "8149b54a639587bcdae0c743a33878d85209ae20568d47d8c82eeb6e35d4cb69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.4243",
    "kind": "arxiv",
    "version": 1
  }
}