Pith Number

pith:DA3W4JMA

pith:2022:DA3W4JMA4J53NRZ6RNNUIBULK5

not attested not anchored not stored refs pending

PaCHash: Packed and Compressed Hash Tables

Florian Kurpicz, Hans-Peter Lehmann, Peter Sanders

arxiv:2205.04745 v3 · 2022-05-10 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DA3W4JMA4J53NRZ6RNNUIBULK5}

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	2026-07-05T05:14:14.344046Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18376e2580e27bb6c73e8b5b44068b5751fdee03e216ad9ac5a6bb699f656470

Aliases

arxiv: 2205.04745 · arxiv_version: 2205.04745v3 · doi: 10.48550/arxiv.2205.04745 · pith_short_12: DA3W4JMA4J53 · pith_short_16: DA3W4JMA4J53NRZ6 · pith_short_8: DA3W4JMA

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/DA3W4JMA4J53NRZ6RNNUIBULK5 \
  | 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: 18376e2580e27bb6c73e8b5b44068b5751fdee03e216ad9ac5a6bb699f656470

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55ae25fff96be36da91b591f0817de4e0ebd6a6bd99929f8955cc5ef25bb0087",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2022-05-10T08:42:03Z",
    "title_canon_sha256": "8ce9d2ecd14727edf45ee005d4ca93def4e22162baec8c5145834bb3744c0031"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.04745",
    "kind": "arxiv",
    "version": 3
  }
}