Pith Number

pith:26LEFJJT

pith:2008:26LEFJJTWSZYF5RFIH6ZFSLLJV

not attested not anchored not stored refs pending

On Computing the Shadows and Slices of Polytopes

Hans Raj Tiwary

arxiv:0804.4150 v2 · 2008-04-25 · cs.CC · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{26LEFJJTWSZYF5RFIH6ZFSLLJV}

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	2026-05-18T03:40:14.889293Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d79642a533b4b382f62541fd92c96b4d589f96ba9570637a6fe89263fd7e476b

Aliases

arxiv: 0804.4150 · arxiv_version: 0804.4150v2 · doi: 10.48550/arxiv.0804.4150 · pith_short_12: 26LEFJJTWSZY · pith_short_16: 26LEFJJTWSZYF5RF · pith_short_8: 26LEFJJT

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/26LEFJJTWSZYF5RFIH6ZFSLLJV \
  | 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: d79642a533b4b382f62541fd92c96b4d589f96ba9570637a6fe89263fd7e476b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41226cdc5218de22d62ef01a8dd8de5372db449acb952c4a0617b6cfdb87263e",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2008-04-25T17:05:16Z",
    "title_canon_sha256": "3661fe29c5c161b0f44c7e705c0248342c0010c0211317aa7c89a734c9febe93"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.4150",
    "kind": "arxiv",
    "version": 2
  }
}