Pith Number

pith:WT4JISDW

pith:2019:WT4JISDWFKI2NLEB6DM7LJI4QC

not attested not anchored not stored refs pending

On bin packing with clustering and bin packing with delays

Leah Epstein

arxiv:1908.06727 v1 · 2019-08-19 · cs.DS · cs.DM · math.CO · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WT4JISDWFKI2NLEB6DM7LJI4QC}

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	2026-07-04T23:58:18.890635Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4f89448762a91a6ac81f0d9f5a51c80b14b70f65f991a8a3cd840e1c49dba4b

Aliases

arxiv: 1908.06727 · arxiv_version: 1908.06727v1 · doi: 10.48550/arxiv.1908.06727 · pith_short_12: WT4JISDWFKI2 · pith_short_16: WT4JISDWFKI2NLEB · pith_short_8: WT4JISDW

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/WT4JISDWFKI2NLEB6DM7LJI4QC \
  | 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: b4f89448762a91a6ac81f0d9f5a51c80b14b70f65f991a8a3cd840e1c49dba4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9c90e8bbb2edbee30319b84b1427452393ed51f469993c1c0eb912724566715",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-08-19T12:16:50Z",
    "title_canon_sha256": "fa8e70f48891d48055fff5f3535a4c51673e40b86b6ece0c606c0566f88bb8cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.06727",
    "kind": "arxiv",
    "version": 1
  }
}