Pith Number

pith:XGS6D4SB

pith:2014:XGS6D4SBVJF5ZF2B254JKOBHMZ

not attested not anchored not stored refs pending

On the Peterson hit problem

Nguyen Sum

arxiv:1412.3309 v2 · 2014-12-10 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XGS6D4SBVJF5ZF2B254JKOBHMZ}

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	2026-05-18T01:12:13.611032Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9a5e1f241aa4bdc9741d778953827665704dfaacefa499bc67543304eb13b4d

Aliases

arxiv: 1412.3309 · arxiv_version: 1412.3309v2 · doi: 10.48550/arxiv.1412.3309 · pith_short_12: XGS6D4SBVJF5 · pith_short_16: XGS6D4SBVJF5ZF2B · pith_short_8: XGS6D4SB

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/XGS6D4SBVJF5ZF2B254JKOBHMZ \
  | 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: b9a5e1f241aa4bdc9741d778953827665704dfaacefa499bc67543304eb13b4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b81f3dbe29cb51288aed176984f92b280df6ff1e51722835af1b0f85b95e025",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2014-12-10T14:03:29Z",
    "title_canon_sha256": "e197a0f24d93610787994f9bb49749265eea4a870b8a43e2f6aa75476ab46c3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.3309",
    "kind": "arxiv",
    "version": 2
  }
}