Pith Number

pith:F5WUDJZB

pith:2018:F5WUDJZBMIOUGQJCVJV3KVOTDS

not attested not anchored not stored refs pending

Reexamining the Chain Fountain

Hiroshi Yokoyama

arxiv:1810.13008 v1 · 2018-10-30 · physics.pop-ph · 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{F5WUDJZBMIOUGQJCVJV3KVOTDS}

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	2026-05-18T00:01:52.480548Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f6d41a721621d434122aa6bb555d31c9f38bee0cbecf5943fbc8cbd10e7429a

Aliases

arxiv: 1810.13008 · arxiv_version: 1810.13008v1 · doi: 10.48550/arxiv.1810.13008 · pith_short_12: F5WUDJZBMIOU · pith_short_16: F5WUDJZBMIOUGQJC · pith_short_8: F5WUDJZB

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/F5WUDJZBMIOUGQJCVJV3KVOTDS \
  | 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: 2f6d41a721621d434122aa6bb555d31c9f38bee0cbecf5943fbc8cbd10e7429a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f02313dae3e85b5b47ab8c1a5d371184c0aaaaf7b3c1dac07183823270f6fe5",
    "cross_cats_sorted": [
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2018-10-30T21:07:30Z",
    "title_canon_sha256": "2783291156a1c2cbc14fa199f7d5068e812d132237f228a4936a95bebac438b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.13008",
    "kind": "arxiv",
    "version": 1
  }
}