Pith Number

pith:PFI3GI2X

pith:2010:PFI3GI2XMNQTW75YTBUJ6RUGU7

not attested not anchored not stored refs pending

A different way to read off the time - A new idea for a binary clock

Joerg Pretz

arxiv:1006.1373 v1 · 2010-06-07 · math.HO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PFI3GI2XMNQTW75YTBUJ6RUGU7}

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	2026-07-04T17:30:13.480080Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7951b3235763613b7fb898689f4686a7c35620067abb66ab3ec5349730be803f

Aliases

arxiv: 1006.1373 · arxiv_version: 1006.1373v1 · doi: 10.48550/arxiv.1006.1373 · pith_short_12: PFI3GI2XMNQT · pith_short_16: PFI3GI2XMNQTW75Y · pith_short_8: PFI3GI2X

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/PFI3GI2XMNQTW75YTBUJ6RUGU7 \
  | 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: 7951b3235763613b7fb898689f4686a7c35620067abb66ab3ec5349730be803f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1de03d118f9f0773587737c33f32e90c829d59e2bdabb97ac7d3387bd2ab6f2a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2010-06-07T20:53:58Z",
    "title_canon_sha256": "17e6d7ea9bf1cf8a84c15d1862cf62182a466a0538186d7a8ff8a8cb3482bd79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1006.1373",
    "kind": "arxiv",
    "version": 1
  }
}