Pith Number

pith:Z6HYRGFN

pith:2019:Z6HYRGFNON5J7KSIKMXNL3OUVG

not attested not anchored not stored refs pending

Throwing $\pi$ at a wall

D. Dobie, M. Z. Rafat

arxiv:1901.06260 v1 · 2019-01-17 · physics.class-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z6HYRGFNON5J7KSIKMXNL3OUVG}

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	2026-05-17T23:56:01.579876Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf8f8898ad737a9faa48532ed5edd4a9acae1edf0b0872f45ac2e470af2c2804

Aliases

arxiv: 1901.06260 · arxiv_version: 1901.06260v1 · doi: 10.48550/arxiv.1901.06260 · pith_short_12: Z6HYRGFNON5J · pith_short_16: Z6HYRGFNON5J7KSI · pith_short_8: Z6HYRGFN

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/Z6HYRGFNON5J7KSIKMXNL3OUVG \
  | 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: cf8f8898ad737a9faa48532ed5edd4a9acae1edf0b0872f45ac2e470af2c2804

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f197c3c9768ea32ecdf5929901d54864b753fcffec87efe88ff9d39c4e3dfedc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2019-01-17T06:31:21Z",
    "title_canon_sha256": "2d12bb33ee267ef4c41b8030f1cada8028603fc19e79cc05bc44da91735967d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.06260",
    "kind": "arxiv",
    "version": 1
  }
}