Pith Number

pith:XV64726K

pith:2008:XV64726KU4RZMHWZGUOF4E3ZXE

not attested not anchored not stored refs pending

Piecewise polynomials on polyhedral complexes

H. Schenck, T. McDonald

arxiv:0808.2031 v2 · 2008-08-14 · math.AC · 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{XV64726KU4RZMHWZGUOF4E3ZXE}

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	2026-05-18T02:28:13.710461Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd7dcfebcaa723961ed9351c5e1379b9252259c6469393f67f39eea9bbd67ed3

Aliases

arxiv: 0808.2031 · arxiv_version: 0808.2031v2 · doi: 10.48550/arxiv.0808.2031 · pith_short_12: XV64726KU4RZ · pith_short_16: XV64726KU4RZMHWZ · pith_short_8: XV64726K

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/XV64726KU4RZMHWZGUOF4E3ZXE \
  | 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: bd7dcfebcaa723961ed9351c5e1379b9252259c6469393f67f39eea9bbd67ed3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34f0ec2e568acf1fa32c5b97a676f0ff746ca8eb73789a5e7c9e4dc34a3a3944",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2008-08-14T17:16:16Z",
    "title_canon_sha256": "d43755a2f665689fbb929bf55ebaebe176dc03125bad5bf644a71d7687ce6f30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0808.2031",
    "kind": "arxiv",
    "version": 2
  }
}