Pith Number

pith:RDBFXNHG

pith:2018:RDBFXNHG2DOTIWZ5U4QUDFN6KD

not attested not anchored not stored refs pending

Online Facility Location with Deletions

Artur Czumaj, Marcin Mucha, Marek Cygan, Piotr Sankowski

arxiv:1807.03839 v1 · 2018-07-10 · cs.DS

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

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	2026-05-18T00:10:58.896102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

88c25bb4e6d0dd345b3da7214195be50d3bace79b55cb70733e10b03027f0c24

Aliases

arxiv: 1807.03839 · arxiv_version: 1807.03839v1 · doi: 10.48550/arxiv.1807.03839 · pith_short_12: RDBFXNHG2DOT · pith_short_16: RDBFXNHG2DOTIWZ5 · pith_short_8: RDBFXNHG

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/RDBFXNHG2DOTIWZ5U4QUDFN6KD \
  | 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: 88c25bb4e6d0dd345b3da7214195be50d3bace79b55cb70733e10b03027f0c24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "035552b51274c453940487faaa466378fd203e1a1d9908c841d8c4e4b162bbfd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-07-10T19:41:32Z",
    "title_canon_sha256": "0b6d80d6b646ed0c665c74ca9c2476ca6d2b32c328f3a079cbb00036602342cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.03839",
    "kind": "arxiv",
    "version": 1
  }
}