Pith Number

pith:E2LDQUOC

pith:2024:E2LDQUOCDZGABXWCG24UB3NVAK

not attested not anchored not stored refs pending

Solution Numbers for Eight Blocks to Madness Puzzle

Erika Roldan, Inga Johnson

arxiv:2407.13208 v1 · 2024-07-18 · math.CO · cs.DM · math.HO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E2LDQUOCDZGABXWCG24UB3NVAK}

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	2026-07-05T08:45:35.796380Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26963851c21e4c00dec236b940edb502b8c8269b8f62ce0eab74f1781c0786ff

Aliases

arxiv: 2407.13208 · arxiv_version: 2407.13208v1 · doi: 10.48550/arxiv.2407.13208 · pith_short_12: E2LDQUOCDZGA · pith_short_16: E2LDQUOCDZGABXWC · pith_short_8: E2LDQUOC

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/E2LDQUOCDZGABXWCG24UB3NVAK \
  | 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: 26963851c21e4c00dec236b940edb502b8c8269b8f62ce0eab74f1781c0786ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c7975c85cdc9bd659c629679170e99ba6d6990517afbf837e7c1b19e370a310",
    "cross_cats_sorted": [
      "cs.DM",
      "math.HO"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2024-07-18T06:44:48Z",
    "title_canon_sha256": "64be514eeb89b457241432e58aa67d43747a978e4bf0f90e1c3fb9eb3abad795"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2407.13208",
    "kind": "arxiv",
    "version": 1
  }
}