Pith Number

pith:OTFH5JOG

pith:2016:OTFH5JOGKH5YFQGLWSLWJIKVJT

not attested not anchored not stored refs pending

Left fibrations and homotopy colimits II

Gijs Heuts, Ieke Moerdijk

arxiv:1602.01274 v1 · 2016-02-03 · math.AT · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OTFH5JOGKH5YFQGLWSLWJIKVJT}

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	2026-05-18T01:21:20.602493Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74ca7ea5c651fb82c0cbb49764a1554ce8e11347f665a951390d698fd91244e3

Aliases

arxiv: 1602.01274 · arxiv_version: 1602.01274v1 · doi: 10.48550/arxiv.1602.01274 · pith_short_12: OTFH5JOGKH5Y · pith_short_16: OTFH5JOGKH5YFQGL · pith_short_8: OTFH5JOG

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/OTFH5JOGKH5YFQGLWSLWJIKVJT \
  | 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: 74ca7ea5c651fb82c0cbb49764a1554ce8e11347f665a951390d698fd91244e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9a152083674ff67b2b7fd87b1f2b95461f78da1d8d5a454eec1e31dc9174828",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2016-02-03T12:10:14Z",
    "title_canon_sha256": "81084386178f0dae73315c6171773ac4e7d228b694e54e225b0b3e1dc6ae310c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.01274",
    "kind": "arxiv",
    "version": 1
  }
}