Pith Number

pith:TCIA2FFI

pith:2018:TCIA2FFI63DBGW2NJ6AHCRNGE2

not attested not anchored not stored refs pending

On generalized choice and coloring numbers

Jakub Pek\'arek, Jean-S\'ebastien Sereni, Zden\v{e}k Dvo\v{r}\'ak

arxiv:1801.06824 v3 · 2018-01-21 · 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{TCIA2FFI63DBGW2NJ6AHCRNGE2}

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	2026-05-17T23:52:44.318935Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98900d14a8f6c6135b4d4f807145a626998cbfa579b42de396bd300c906d47b1

Aliases

arxiv: 1801.06824 · arxiv_version: 1801.06824v3 · doi: 10.48550/arxiv.1801.06824 · pith_short_12: TCIA2FFI63DB · pith_short_16: TCIA2FFI63DBGW2N · pith_short_8: TCIA2FFI

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/TCIA2FFI63DBGW2NJ6AHCRNGE2 \
  | 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: 98900d14a8f6c6135b4d4f807145a626998cbfa579b42de396bd300c906d47b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18cb72596478c4cf8a9ead0bdbd6a920e44e864edc7c3dedeac1d31e533b0fb8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-01-21T14:11:21Z",
    "title_canon_sha256": "13b3717cdcba89a05ed6f837a8506d60b8d7b7fae3ee4087b8b23caa48e24eab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.06824",
    "kind": "arxiv",
    "version": 3
  }
}