Pith Number

pith:DAA3DNEF

pith:2026:DAA3DNEFY3REEEQB2QNGJ2ZNSH

not attested not anchored not stored refs pending

Enriched categories, real metrics and Lorentz manifolds

Marco Grandis

arxiv:2605.18088 v1 · 2026-05-18 · math.CT · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DAA3DNEFY3REEEQB2QNGJ2ZNSH}

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	2026-05-20T00:05:15.368898Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1801b1b485c6e2421201d41a64eb2d91cb007823c1f0e8d1dbce486e5f2f2a2c

Aliases

arxiv: 2605.18088 · arxiv_version: 2605.18088v1 · doi: 10.48550/arxiv.2605.18088 · pith_short_12: DAA3DNEFY3RE · pith_short_16: DAA3DNEFY3REEEQB · pith_short_8: DAA3DNEF

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/DAA3DNEFY3REEEQB2QNGJ2ZNSH \
  | 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: 1801b1b485c6e2421201d41a64eb2d91cb007823c1f0e8d1dbce486e5f2f2a2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7356cc102c210bc32c496c2ac17049f10649656fd6a004f488937086b452821",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2026-05-18T09:03:00Z",
    "title_canon_sha256": "3ff56baf1a835ca52dd8088787fcb8046826993ab200a87a8712eaa3fdc7f9d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.18088",
    "kind": "arxiv",
    "version": 1
  }
}