Pith Number

pith:OHS7EAIP

pith:2015:OHS7EAIPFOSXLSA3NJ5SQ2DDUE

not attested not anchored not stored refs pending

Counting Ones Without Broadword Operations

Holger Petersen

arxiv:1511.05210 v2 · 2015-11-16 · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OHS7EAIPFOSXLSA3NJ5SQ2DDUE}

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	2026-05-18T01:22:46.259844Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71e5f2010f2ba575c81b6a7b286863a12f54f5e85654723a75d00fae87a863c1

Aliases

arxiv: 1511.05210 · arxiv_version: 1511.05210v2 · doi: 10.48550/arxiv.1511.05210 · pith_short_12: OHS7EAIPFOSX · pith_short_16: OHS7EAIPFOSXLSA3 · pith_short_8: OHS7EAIP

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/OHS7EAIPFOSXLSA3NJ5SQ2DDUE \
  | 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: 71e5f2010f2ba575c81b6a7b286863a12f54f5e85654723a75d00fae87a863c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5605820ecec6fb0929772c9274c3c9586032b121df0fde09583782ca5c492007",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2015-11-16T22:46:32Z",
    "title_canon_sha256": "84e36eab76e391e72d6d554a38c7c8edb52d453f68a73d57414c35d386aee65d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.05210",
    "kind": "arxiv",
    "version": 2
  }
}