Pith Number

pith:OUNXPTRI

pith:2010:OUNXPTRI5TIW4TN6RCFA7X3IKW

not attested not anchored not stored refs pending

Maximum compatibility estimates and shape reconstruction with boundary curves and volumes of generalized projections

Mikko Kaasalainen

arxiv:1001.2438 v1 · 2010-01-14 · math.OC · astro-ph.EP · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OUNXPTRI5TIW4TN6RCFA7X3IKW}

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	2026-05-18T04:28:09.978296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

751b77ce28ecd16e4dbe888a0fdf6855871559c7facc88fa0d90fcd9f92b156d

Aliases

arxiv: 1001.2438 · arxiv_version: 1001.2438v1 · doi: 10.48550/arxiv.1001.2438 · pith_short_12: OUNXPTRI5TIW · pith_short_16: OUNXPTRI5TIW4TN6 · pith_short_8: OUNXPTRI

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/OUNXPTRI5TIW4TN6RCFA7X3IKW \
  | 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: 751b77ce28ecd16e4dbe888a0fdf6855871559c7facc88fa0d90fcd9f92b156d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7c2c7b09ec441c925c4b71092428c6e77e68db34360381c3a5c523b65ea7198",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2010-01-14T12:12:43Z",
    "title_canon_sha256": "2a6c063deb9e50f8dad13840895e138ce45e2b55827c7754b7e31db2652c06b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.2438",
    "kind": "arxiv",
    "version": 1
  }
}