Pith Number

pith:PRMJD3LF

pith:2012:PRMJD3LFMEVUSNHUOFOYCQ5Z2U

not attested not anchored not stored refs pending

On cyclically-interval edge colorings of trees

R.R. Kamalian

arxiv:1205.0193 v1 · 2012-05-01 · cs.DM · 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{PRMJD3LFMEVUSNHUOFOYCQ5Z2U}

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	2026-05-18T03:56:35.660462Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c5891ed65612b4934f4715d8143b9d50f8a7f4f4a0e598b5ac610e333cb382e

Aliases

arxiv: 1205.0193 · arxiv_version: 1205.0193v1 · doi: 10.48550/arxiv.1205.0193 · pith_short_12: PRMJD3LFMEVU · pith_short_16: PRMJD3LFMEVUSNHU · pith_short_8: PRMJD3LF

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/PRMJD3LFMEVUSNHUOFOYCQ5Z2U \
  | 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: 7c5891ed65612b4934f4715d8143b9d50f8a7f4f4a0e598b5ac610e333cb382e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf2eebd0981ef25da8bda7ad7e00f9f02a75863dfc1420353cfa77af69853562",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2012-05-01T15:40:33Z",
    "title_canon_sha256": "5fdf1a3dc5f36fd7143cbb8daccf039e09247c55c42f54b53523f35a94c0e6f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.0193",
    "kind": "arxiv",
    "version": 1
  }
}