Pith Number

pith:GYKAPKUG

pith:1999:GYKAPKUGMMQB2ZDXVKMPTIUBYD

not attested not anchored not stored refs pending

Connes-Lott model building on the two-sphere

A.R. da Silva, C. Sigaud, F.J. Vanhecke, J.A. Mignaco

arxiv:hep-th/9904171 v1 · 1999-04-26 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GYKAPKUGMMQB2ZDXVKMPTIUBYD}

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	2026-05-18T02:35:54.454348Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

361407aa8663201d6477aa98f9a281c0d2b90541340bbfd9f421bbd0f682b96c

Aliases

arxiv: hep-th/9904171 · arxiv_version: hep-th/9904171v1 · doi: 10.48550/arxiv.hep-th/9904171 · pith_short_12: GYKAPKUGMMQB · pith_short_16: GYKAPKUGMMQB2ZDX · pith_short_8: GYKAPKUG

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/GYKAPKUGMMQB2ZDXVKMPTIUBYD \
  | 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: 361407aa8663201d6477aa98f9a281c0d2b90541340bbfd9f421bbd0f682b96c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c45971d3b7969544d2a00dd12501c13d23b71d619dffc9f86e8578435bde98c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1999-04-26T10:49:01Z",
    "title_canon_sha256": "f0773b05a9845a7cdafb4d3ba5c4a7af7a6fd27d889f51f9c75ed0ec990c50db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9904171",
    "kind": "arxiv",
    "version": 1
  }
}