Pith Number

pith:7H3T7YFU

pith:2011:7H3T7YFURNMLORXT3TBZF36IZV

not attested not anchored not stored refs pending

Bounds for discrete tomography solutions

Birgit van Dalen, Lajos Hajdu, Rob Tijdeman

arxiv:1104.5589 v2 · 2011-04-29 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7H3T7YFURNMLORXT3TBZF36IZV}

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	2026-05-18T04:00:26.798879Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9f73fe0b48b58b746f3dcc392efc8cd6bb2837d4e88f8d19257569c919546b2

Aliases

arxiv: 1104.5589 · arxiv_version: 1104.5589v2 · doi: 10.48550/arxiv.1104.5589 · pith_short_12: 7H3T7YFURNML · pith_short_16: 7H3T7YFURNMLORXT · pith_short_8: 7H3T7YFU

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/7H3T7YFURNMLORXT3TBZF36IZV \
  | 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: f9f73fe0b48b58b746f3dcc392efc8cd6bb2837d4e88f8d19257569c919546b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e74cf18b05ea836158159b7069a38a8f302bfab936592ebd6d7671364a7a413",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-04-29T10:17:12Z",
    "title_canon_sha256": "3fe8a872b1ef115cc61b35ec7cd95f66e525ce1d269b83042c5e0eebd0a01aea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.5589",
    "kind": "arxiv",
    "version": 2
  }
}