Pith Number

pith:JCWT5T6R

pith:2019:JCWT5T6R3EOKHP6FGIKQIDZC33

not attested not anchored not stored refs pending

Combining the Connection Scan Algorithm with Contraction Hierarchies

Jacob Turner

arxiv:1907.09041 v1 · 2019-07-21 · cs.DS · 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{JCWT5T6R3EOKHP6FGIKQIDZC33}

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	2026-05-17T23:40:02.321809Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

48ad3ecfd1d91ca3bfc53215040f22dee09607067542a8d5a4595d296509ca64

Aliases

arxiv: 1907.09041 · arxiv_version: 1907.09041v1 · doi: 10.48550/arxiv.1907.09041 · pith_short_12: JCWT5T6R3EOK · pith_short_16: JCWT5T6R3EOKHP6F · pith_short_8: JCWT5T6R

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/JCWT5T6R3EOKHP6FGIKQIDZC33 \
  | 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: 48ad3ecfd1d91ca3bfc53215040f22dee09607067542a8d5a4595d296509ca64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2155c001ba91ceddb00dac9511bed5fb498bbf99d0d6c7f807cac574604bb39e",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-07-21T22:01:20Z",
    "title_canon_sha256": "bae447a8225465782f5c228e6a63a948d8b067badf8865aaeeb01114fafdc7e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.09041",
    "kind": "arxiv",
    "version": 1
  }
}