Pith Number

pith:4S4BEUW7

pith:2019:4S4BEUW7GJTRLF7KMJFIPHEGM5

not attested not anchored not stored refs pending

HashCore: Proof-of-Work Functions for General Purpose Processors

Sriram Vishwanath, Steven Flolid, Yanni Georghiades

arxiv:1902.00112 v2 · 2019-01-31 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4S4BEUW7GJTRLF7KMJFIPHEGM5}

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	2026-05-17T23:48:30.669451Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4b81252df32671597ea624a879c866756e9d95839abc90193655812fc327c3d

Aliases

arxiv: 1902.00112 · arxiv_version: 1902.00112v2 · doi: 10.48550/arxiv.1902.00112 · pith_short_12: 4S4BEUW7GJTR · pith_short_16: 4S4BEUW7GJTRLF7K · pith_short_8: 4S4BEUW7

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/4S4BEUW7GJTRLF7KMJFIPHEGM5 \
  | 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: e4b81252df32671597ea624a879c866756e9d95839abc90193655812fc327c3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "932cede0db48d59f5065cae3a03cafa3cd6aefcbc8a1b5b00d8d70ef72974cbf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2019-01-31T22:42:34Z",
    "title_canon_sha256": "806b4a0bcee054997fc853f46305fec59aac08f000c3e73b7b0dba5d950ba469"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.00112",
    "kind": "arxiv",
    "version": 2
  }
}