Pith Number

pith:Z32RIFP7

pith:2021:Z32RIFP73ZFU4LMXH5M37PKSNG

not attested not anchored not stored refs pending

Cartesian Fibrations of Complete Segal Spaces

Nima Rasekh

arxiv:2102.05190 v2 · 2021-02-09 · math.CT · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z32RIFP73ZFU4LMXH5M37PKSNG}

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	2026-07-05T02:14:33.635453Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cef51415ffde4b4e2d973f59bfbd5269809e848d0150cc19ce5990f1ca1f8b14

Aliases

arxiv: 2102.05190 · arxiv_version: 2102.05190v2 · doi: 10.48550/arxiv.2102.05190 · pith_short_12: Z32RIFP73ZFU · pith_short_16: Z32RIFP73ZFU4LMX · pith_short_8: Z32RIFP7

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/Z32RIFP73ZFU4LMXH5M37PKSNG \
  | 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: cef51415ffde4b4e2d973f59bfbd5269809e848d0150cc19ce5990f1ca1f8b14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f6be81794104683d127eaf51ebf56ea677365c953c58a5b798153451c99ad89",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2021-02-09T23:53:36Z",
    "title_canon_sha256": "d3aa8bd7daebd87b09b90ad3d92fa6a5991ec18b9b45e603e62e1d3c82616961"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.05190",
    "kind": "arxiv",
    "version": 2
  }
}