Pith Number

pith:GD7SCTCO

pith:2018:GD7SCTCO2YISUNNV6RE4MXXJO5

not attested not anchored not stored refs pending

Variants on a question of Wilf

Anton Rechenauer, Michael Hellus, Rolf Waldi

arxiv:1804.06141 v2 · 2018-04-17 · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GD7SCTCO2YISUNNV6RE4MXXJO5}

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	2026-05-18T00:18:08.781027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30ff214c4ed6112a35b5f449c65ee9777a23922a8f1ba86926e28460249dfb25

Aliases

arxiv: 1804.06141 · arxiv_version: 1804.06141v2 · doi: 10.48550/arxiv.1804.06141 · pith_short_12: GD7SCTCO2YIS · pith_short_16: GD7SCTCO2YISUNNV · pith_short_8: GD7SCTCO

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/GD7SCTCO2YISUNNV6RE4MXXJO5 \
  | 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: 30ff214c4ed6112a35b5f449c65ee9777a23922a8f1ba86926e28460249dfb25

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44bcdd1827ffdacd0a2a71e04ea0a65fdb9df70ad29989afa18cb49f03e9b506",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2018-04-17T09:56:47Z",
    "title_canon_sha256": "55d417ee3c6ba3438399dd46168ef5b9ca99dd407906b7969237a8fc7fb9d35e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.06141",
    "kind": "arxiv",
    "version": 2
  }
}