Pith Number

pith:6N7RLPSV

pith:2015:6N7RLPSVITSRYTE43VXQX63HWT

not attested not anchored not stored refs pending

Interval edge-colorings of composition of graphs

Hayk H. Tepanyan, Petros A. Petrosyan

arxiv:1508.00158 v1 · 2015-08-01 · math.CO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6N7RLPSVITSRYTE43VXQX63HWT}

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	2026-05-18T01:35:58.836702Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f37f15be5544e51c4c9cdd6f0bfb67b4d218d0ecc44951f243a86bbea7965c25

Aliases

arxiv: 1508.00158 · arxiv_version: 1508.00158v1 · doi: 10.48550/arxiv.1508.00158 · pith_short_12: 6N7RLPSVITSR · pith_short_16: 6N7RLPSVITSRYTE4 · pith_short_8: 6N7RLPSV

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/6N7RLPSVITSRYTE43VXQX63HWT \
  | 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: f37f15be5544e51c4c9cdd6f0bfb67b4d218d0ecc44951f243a86bbea7965c25

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "596f45590c12db5878cf9593bf7c81d6275b94f4727b7f778d85f75ddd719080",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-08-01T19:00:40Z",
    "title_canon_sha256": "9afc439047ba835f226f103588be1d9bf7555b4872037d8dbf6d70fa1cb4d3bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.00158",
    "kind": "arxiv",
    "version": 1
  }
}