pith. sign in
Pith Number

pith:R4AEEDG6

pith:2017:R4AEEDG6GBOQ46A4RQ5ORMM6RZ
not attested not anchored not stored refs pending

Avoidance bases for formulas with reversal

James Currie, Lucas Mol, Narad Rampersad

arxiv:1711.08025 v2 · 2017-11-21 · math.CO

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{R4AEEDG6GBOQ46A4RQ5ORMM6RZ}

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 2026-05-18T00:18:41.157473Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

8f00420cde305d0e781c8c3ae8b19e8e60b77f8a12379ddb23d567e15640827d

Aliases

arxiv: 1711.08025 · arxiv_version: 1711.08025v2 · doi: 10.48550/arxiv.1711.08025 · pith_short_12: R4AEEDG6GBOQ · pith_short_16: R4AEEDG6GBOQ46A4 · pith_short_8: R4AEEDG6
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/R4AEEDG6GBOQ46A4RQ5ORMM6RZ \
  | 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: 8f00420cde305d0e781c8c3ae8b19e8e60b77f8a12379ddb23d567e15640827d
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "066bc3c0f629e82703cac9c71191313b8e079e6687b84f0112f414f1b9851ded",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-11-21T20:32:07Z",
    "title_canon_sha256": "a36fdf3dbbee00f107640019a4fae5e579a26a29c105c011fc2315cd08f6aa5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.08025",
    "kind": "arxiv",
    "version": 2
  }
}