Pith Number

pith:XNTAFBY5

pith:2009:XNTAFBY5TYSRDQXHRN5UFAG55H

not attested not anchored not stored refs pending

Solving the 0-1 Multidimensional Knapsack Problem with Resolution Search

EMA), Michel Vasquez (LGI2P, Philippe Michelon (LIA), Said Hanafi (LAMIH), Sylvain Boussier (LIA), Yannick Vimont (LGI2P)

arxiv:0905.0848 v1 · 2009-05-06 · 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{XNTAFBY5TYSRDQXHRN5UFAG55H}

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	2026-07-04T15:42:13.641181Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb6602871d9e2511c2e78b7b4280dde9d1f1f55c423f542f983f7022c4d64d3a

Aliases

arxiv: 0905.0848 · arxiv_version: 0905.0848v1 · doi: 10.48550/arxiv.0905.0848 · pith_short_12: XNTAFBY5TYSR · pith_short_16: XNTAFBY5TYSRDQXH · pith_short_8: XNTAFBY5

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/XNTAFBY5TYSRDQXHRN5UFAG55H \
  | 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: bb6602871d9e2511c2e78b7b4280dde9d1f1f55c423f542f983f7022c4d64d3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b39b7b885b1f7e2e6faa3f7fadf1bb6c548153a0c748127a626f176792dce8c1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2009-05-06T14:58:02Z",
    "title_canon_sha256": "0272005c31833be069bb731bb41d462063496ea5417e6349111eb795f0ebda65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.0848",
    "kind": "arxiv",
    "version": 1
  }
}