Pith Number

pith:BELLBO6L

pith:1999:BELLBO6LUWMX7VK7MHTPXJTSPQ

not attested not anchored not stored refs pending

Higher-Dimensional Algebra and Planck-Scale Physics

John C. Baez

arxiv:gr-qc/9902017 v1 · 1999-02-04 · gr-qc · hep-th · math.CT · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BELLBO6LUWMX7VK7MHTPXJTSPQ}

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	2026-05-18T02:27:08.773447Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0916b0bbcba5997fd55f61e6fba6727c14825d1e641731233072fa54ff16ffb6

Aliases

arxiv: gr-qc/9902017 · arxiv_version: gr-qc/9902017v1 · doi: 10.48550/arxiv.gr-qc/9902017 · pith_short_12: BELLBO6LUWMX · pith_short_16: BELLBO6LUWMX7VK7 · pith_short_8: BELLBO6L

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/BELLBO6LUWMX7VK7MHTPXJTSPQ \
  | 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: 0916b0bbcba5997fd55f61e6fba6727c14825d1e641731233072fa54ff16ffb6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf9d511b29a94fb01fb1137250bc4db6f842533b7c21c90dcb20c3e7ba8f8746",
    "cross_cats_sorted": [
      "hep-th",
      "math.CT",
      "math.QA"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1999-02-04T18:54:52Z",
    "title_canon_sha256": "5b960e3f0442de177b561bd4fc35e37cd1bc40c80bc9238fd5e4be2af86163fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9902017",
    "kind": "arxiv",
    "version": 1
  }
}