Pith Number

pith:3NGB35NF

pith:2014:3NGB35NFIZP2JT4G7YVBUFXA6I

not attested not anchored not stored refs pending

Fibrancy of Partial Model Categories

Lennart Meier, Viktoriya Ozornova

arxiv:1408.2743 v1 · 2014-08-12 · 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{3NGB35NFIZP2JT4G7YVBUFXA6I}

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	2026-05-18T02:45:22.412070Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db4c1df5a5465fa4cf86fe2a1a16e0f22d165b49691b8621007be427ff2574ad

Aliases

arxiv: 1408.2743 · arxiv_version: 1408.2743v1 · doi: 10.48550/arxiv.1408.2743 · pith_short_12: 3NGB35NFIZP2 · pith_short_16: 3NGB35NFIZP2JT4G · pith_short_8: 3NGB35NF

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/3NGB35NFIZP2JT4G7YVBUFXA6I \
  | 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: db4c1df5a5465fa4cf86fe2a1a16e0f22d165b49691b8621007be427ff2574ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77817250a1e2f6bdd31252b4b48d191f504492a8e341f6d2e2498ba15ddc8139",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2014-08-12T15:22:39Z",
    "title_canon_sha256": "be0ec567b1ad7c62679e00b1ad2c16048dca04305dd46a92767400003c29da7f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.2743",
    "kind": "arxiv",
    "version": 1
  }
}