Pith Number

pith:FUT5OE2Z

pith:2014:FUT5OE2Z52RILKZKCPJFG7CJJQ

not attested not anchored not stored refs pending

Approximation Algorithms for Covering and Packing Problems on Paths

Arindam Pal

arxiv:1402.1107 v1 · 2014-02-05 · cs.DS · 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{FUT5OE2Z52RILKZKCPJFG7CJJQ}

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	2026-05-18T02:26:51.625929Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d27d71359eea285ab2a13d2537c494c2bdd26c1f9042e41150eb3e14adff5a2

Aliases

arxiv: 1402.1107 · arxiv_version: 1402.1107v1 · doi: 10.48550/arxiv.1402.1107 · pith_short_12: FUT5OE2Z52RI · pith_short_16: FUT5OE2Z52RILKZK · pith_short_8: FUT5OE2Z

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/FUT5OE2Z52RILKZKCPJFG7CJJQ \
  | 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: 2d27d71359eea285ab2a13d2537c494c2bdd26c1f9042e41150eb3e14adff5a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e60a7636a8ec2d45cdd83be5be15d42c5a6e22c65edf096d1d207206776c3e09",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-02-05T18:06:20Z",
    "title_canon_sha256": "7b9324235eb61359232222873e3c1627efede3461f082bbb66e862c090dc6341"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.1107",
    "kind": "arxiv",
    "version": 1
  }
}