Pith Number

pith:X4XUWSHC

pith:2018:X4XUWSHCSZUDQQZBXHK7YKW3UJ

not attested not anchored not stored refs pending

Variations on the Dirac string

Andrew R. Frey, Brad Cownden

arxiv:1807.07401 v2 · 2018-07-19 · hep-th · hep-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{X4XUWSHCSZUDQQZBXHK7YKW3UJ}

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	2026-05-17T23:59:07.885024Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf2f4b48e29668384321b9d5fc2adba25dd85729438c4e180f17d8ee1db62cc1

Aliases

arxiv: 1807.07401 · arxiv_version: 1807.07401v2 · doi: 10.48550/arxiv.1807.07401 · pith_short_12: X4XUWSHCSZUD · pith_short_16: X4XUWSHCSZUDQQZB · pith_short_8: X4XUWSHC

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/X4XUWSHCSZUDQQZBXHK7YKW3UJ \
  | 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: bf2f4b48e29668384321b9d5fc2adba25dd85729438c4e180f17d8ee1db62cc1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d62bc7dbaccf8f9b6ebcc635c9acb1fe3d59d3d5705f0e4f07d51673b95c51db",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2018-07-19T13:34:49Z",
    "title_canon_sha256": "f516d28ec31ef4c5e8bf412d63afacd179ecad1f98904864700f43af25ec6bb8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.07401",
    "kind": "arxiv",
    "version": 2
  }
}