Pith Number

pith:N6YE2DBR

pith:2012:N6YE2DBROAS4CMUOWUAPAXMN7O

not attested not anchored not stored refs pending

Reordering Rows for Better Compression: Beyond the Lexicographic Order

Daniel Lemire, Eduardo Gutarra, Owen Kaser

arxiv:1207.2189 v3 · 2012-07-09 · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N6YE2DBROAS4CMUOWUAPAXMN7O}

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	2026-05-18T03:00:27.000549Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6fb04d0c317025c1328eb500f05d8dfb83d1b1cb7e26ee11834021f328afc8a7

Aliases

arxiv: 1207.2189 · arxiv_version: 1207.2189v3 · doi: 10.48550/arxiv.1207.2189 · pith_short_12: N6YE2DBROAS4 · pith_short_16: N6YE2DBROAS4CMUO · pith_short_8: N6YE2DBR

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/N6YE2DBROAS4CMUOWUAPAXMN7O \
  | 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: 6fb04d0c317025c1328eb500f05d8dfb83d1b1cb7e26ee11834021f328afc8a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e009d2c6c16f5244a1849e91523b4b7d678c1288abe311e3c00e20383b61c2ea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2012-07-09T21:47:13Z",
    "title_canon_sha256": "e2f1ec6cf5f438369cc26bc56fbdaebd2eaf2ee7c64c595fcdae07d94b134f48"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.2189",
    "kind": "arxiv",
    "version": 3
  }
}