Pith Number

pith:FABHWGPO

pith:2016:FABHWGPO2XMDZIEOJYLPHKVIR5

not attested not anchored not stored refs pending

Distance geometry approach for special graph coloring problems

Bruno Dias, Jayme Szwarcfiter, Nelson Maculan, Rosiane de Freitas

arxiv:1606.04978 v1 · 2016-06-15 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FABHWGPO2XMDZIEOJYLPHKVIR5}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:12:22.263754Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28027b19eed5d83ca08e4e16f3aaa88f52bfa1e912af03635f0a27c7b7dd1b64

Aliases

arxiv: 1606.04978 · arxiv_version: 1606.04978v1 · doi: 10.48550/arxiv.1606.04978 · pith_short_12: FABHWGPO2XMD · pith_short_16: FABHWGPO2XMDZIEO · pith_short_8: FABHWGPO

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/FABHWGPO2XMDZIEOJYLPHKVIR5 \
  | 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: 28027b19eed5d83ca08e4e16f3aaa88f52bfa1e912af03635f0a27c7b7dd1b64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "416e99dcbbce6e8009497536f170c7ad1314eda3a49f9923b087580854468ce8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2016-06-15T20:54:04Z",
    "title_canon_sha256": "9e45f84680730c9323cb9533e1b12f9bf511648c5d043fdfbc54aae1e3b4078b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.04978",
    "kind": "arxiv",
    "version": 1
  }
}