Pith Number

pith:Z44MCSZM

pith:2017:Z44MCSZM7RHEBZTQ653GOOCYVN

not attested not anchored not stored refs pending

The Euler and Chinese Postman Problems on 2-Arc-Colored Digraphs

Bin Sheng, Gregory Gutin, Ruijuan Li

arxiv:1707.06503 v1 · 2017-07-20 · cs.DS · 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{Z44MCSZM7RHEBZTQ653GOOCYVN}

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	2026-05-18T00:39:53.664702Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf38c14b2cfc4e40e670f776673858ab78e4d1f8e2208e927e71b67186ecf3c1

Aliases

arxiv: 1707.06503 · arxiv_version: 1707.06503v1 · doi: 10.48550/arxiv.1707.06503 · pith_short_12: Z44MCSZM7RHE · pith_short_16: Z44MCSZM7RHEBZTQ · pith_short_8: Z44MCSZM

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/Z44MCSZM7RHEBZTQ653GOOCYVN \
  | 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: cf38c14b2cfc4e40e670f776673858ab78e4d1f8e2208e927e71b67186ecf3c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0e98a325d7cd4d772b8eb3bf1bb4adc99878ea95a9a16da689e06b6d945df09",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-07-20T13:45:36Z",
    "title_canon_sha256": "980ca66b029d88d5d55b8092b6a1deb5e657b98d6a0aca9fb0720aad36788f49"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.06503",
    "kind": "arxiv",
    "version": 1
  }
}