Pith Number

pith:REHM6A56

pith:2015:REHM6A56TS4XHCMOYULD3M722N

not attested not anchored not stored refs pending

Distant set distinguishing edge colourings of graphs

Jakub Przyby{\l}o

arxiv:1508.05024 v1 · 2015-08-20 · 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{REHM6A56TS4XHCMOYULD3M722N}

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	2026-05-18T00:21:37.998985Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

890ecf03be9cb973898ec5163db3fad377ac387bca4ad76b3f2d36160231b547

Aliases

arxiv: 1508.05024 · arxiv_version: 1508.05024v1 · doi: 10.48550/arxiv.1508.05024 · pith_short_12: REHM6A56TS4X · pith_short_16: REHM6A56TS4XHCMO · pith_short_8: REHM6A56

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/REHM6A56TS4XHCMOYULD3M722N \
  | 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: 890ecf03be9cb973898ec5163db3fad377ac387bca4ad76b3f2d36160231b547

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e264ee5ea144b56566002ad5093be8f6242de89869b31cff063fd45517e9538b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-08-20T16:11:03Z",
    "title_canon_sha256": "5b59fddc7051392060dc5bb9a26f10ab6f0ffc28a487712323eae653321f5e64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.05024",
    "kind": "arxiv",
    "version": 1
  }
}