Pith Number

pith:GFIBTPNR

pith:2009:GFIBTPNRWZI54IITZG4TENDNZ5

not attested not anchored not stored refs pending

The Visualization of the Road Coloring Algorithm in the package TESTAS

A.N. Trahtman, N. Cohen, T. Bauer

arxiv:0907.2755 v3 · 2009-07-16 · cs.DM · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GFIBTPNRWZI54IITZG4TENDNZ5}

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	2026-05-18T04:34:55.492487Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

315019bdb1b651de2113c9b932346dcf45c917f3ca5ca1f2a52a3ac2ebac4424

Aliases

arxiv: 0907.2755 · arxiv_version: 0907.2755v3 · doi: 10.48550/arxiv.0907.2755 · pith_short_12: GFIBTPNRWZI5 · pith_short_16: GFIBTPNRWZI54IIT · pith_short_8: GFIBTPNR

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/GFIBTPNRWZI54IITZG4TENDNZ5 \
  | 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: 315019bdb1b651de2113c9b932346dcf45c917f3ca5ca1f2a52a3ac2ebac4424

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f4c35bc6e88f767e63cdd3bde0c81d5e7ea01587735e867bce2d60951de45be",
    "cross_cats_sorted": [
      "cs.FL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2009-07-16T05:42:06Z",
    "title_canon_sha256": "c65c30dc96a9ab724111fcc9da751f8515902fad6ca61d7521f6218c932f17ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.2755",
    "kind": "arxiv",
    "version": 3
  }
}