Pith Number

pith:GKYPXYET

pith:2016:GKYPXYETMSG6ZNZJGH4OTWO26C

not attested not anchored not stored refs pending

A simple numeric algorithm for ancient coin dies identification

Luca Lista

arxiv:1604.04074 v3 · 2016-04-14 · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GKYPXYETMSG6ZNZJGH4OTWO26C}

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	2026-05-17T23:41:31.557462Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

32b0fbe093648decb72931f8e9d9daf0af5c9c58bfea61a1dc0ee61b7d387aa8

Aliases

arxiv: 1604.04074 · arxiv_version: 1604.04074v3 · doi: 10.48550/arxiv.1604.04074 · pith_short_12: GKYPXYETMSG6 · pith_short_16: GKYPXYETMSG6ZNZJ · pith_short_8: GKYPXYET

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/GKYPXYETMSG6ZNZJGH4OTWO26C \
  | 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: 32b0fbe093648decb72931f8e9d9daf0af5c9c58bfea61a1dc0ee61b7d387aa8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f4828ad2dae906416c19f0f9898511040104a0ef5b61b3844e06775f2e1c5ab",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "physics.data-an",
    "submitted_at": "2016-04-14T08:41:27Z",
    "title_canon_sha256": "11bc18a0388b8415fc57b03f98fe4ef6ee54d6b435a8a9a69f3b3249ae2b161d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.04074",
    "kind": "arxiv",
    "version": 3
  }
}