Pith Number

pith:EQQGVKIM

pith:2014:EQQGVKIMTKJXWS4Y4UGE7O76RF

not attested not anchored not stored refs pending

Functional dependencies with null markers

Antonio Badia, Daniel Lemire

arxiv:1404.4963 v2 · 2014-04-19 · 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{EQQGVKIMTKJXWS4Y4UGE7O76RF}

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	2026-05-18T02:09:41.908414Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24206aa90c9a937b4b98e50c4fbbfe89750f0d38f7bb44f4a7c9b4bc7cc0e46f

Aliases

arxiv: 1404.4963 · arxiv_version: 1404.4963v2 · doi: 10.48550/arxiv.1404.4963 · pith_short_12: EQQGVKIMTKJX · pith_short_16: EQQGVKIMTKJXWS4Y · pith_short_8: EQQGVKIM

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/EQQGVKIMTKJXWS4Y4UGE7O76RF \
  | 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: 24206aa90c9a937b4b98e50c4fbbfe89750f0d38f7bb44f4a7c9b4bc7cc0e46f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "597790512696693d78ed9d4248ddc8ee7c549f51650a08e2eb5640c6b9bd8ce4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2014-04-19T15:46:01Z",
    "title_canon_sha256": "bf9c686613a0f70b26d9c5942f58075f9ebbd1612fc53d097d97fdc0274d6ffd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.4963",
    "kind": "arxiv",
    "version": 2
  }
}