Pith Number

pith:I7FR7DES

pith:2017:I7FR7DESYT5FLUXP5UPCVLCUYH

not attested not anchored not stored refs pending

Exact distance coloring in trees

Ararat Harutyunyan, Louis Esperet, Nicolas Bousquet, R\'emi de Joannis de Verclos

arxiv:1703.06047 v2 · 2017-03-17 · 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{I7FR7DESYT5FLUXP5UPCVLCUYH}

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	2026-05-17T23:51:14.911640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47cb1f8c92c4fa55d2efed1e2aac54c1df7b77534dae01dc60aecacd871d8693

Aliases

arxiv: 1703.06047 · arxiv_version: 1703.06047v2 · doi: 10.48550/arxiv.1703.06047 · pith_short_12: I7FR7DESYT5F · pith_short_16: I7FR7DESYT5FLUXP · pith_short_8: I7FR7DES

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/I7FR7DESYT5FLUXP5UPCVLCUYH \
  | 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: 47cb1f8c92c4fa55d2efed1e2aac54c1df7b77534dae01dc60aecacd871d8693

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c21d7c66eff15d1e6683fa24df706d9767d0b0195094c8da096fbe234d11b93",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-03-17T15:06:03Z",
    "title_canon_sha256": "671495fa42eb183b29499445df0abe84e4e361525c151138e3ebe579f3890e92"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.06047",
    "kind": "arxiv",
    "version": 2
  }
}