Pith Number

pith:NFAKSOVI

pith:2019:NFAKSOVIFFMD3N3GXWDU2NAO6P

not attested not anchored not stored refs pending

Formality criteria in terms of higher Whitehead brackets

Jos\'e M. Moreno-Fern\'andez, Urtzi Buijs

arxiv:1902.03034 v1 · 2019-02-08 · 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{NFAKSOVIFFMD3N3GXWDU2NAO6P}

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	2026-05-17T23:54:28.549872Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6940a93aa829583db766bd874d340ef3ecab82a851bcba0e0f57acb1acf96b50

Aliases

arxiv: 1902.03034 · arxiv_version: 1902.03034v1 · doi: 10.48550/arxiv.1902.03034 · pith_short_12: NFAKSOVIFFMD · pith_short_16: NFAKSOVIFFMD3N3G · pith_short_8: NFAKSOVI

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/NFAKSOVIFFMD3N3GXWDU2NAO6P \
  | 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: 6940a93aa829583db766bd874d340ef3ecab82a851bcba0e0f57acb1acf96b50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95560e7c8f4b6fdb1a2a458bbb8f77c0c40a3df077c1ea85b044ad309ff23bba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2019-02-08T11:55:13Z",
    "title_canon_sha256": "a0cf0f3b9f5343e519a310afb22e7c129fa187369234059be424708972535a8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.03034",
    "kind": "arxiv",
    "version": 1
  }
}