Pith Number

pith:5OG5FB4N

pith:2017:5OG5FB4NFCBZDL2VINHITXGQKD

not attested not anchored not stored refs pending

Homotopy nilpotent groups and their associated functors

Georg Biedermann

arxiv:1705.04963 v1 · 2017-05-14 · 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{5OG5FB4NFCBZDL2VINHITXGQKD}

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	2026-05-18T00:44:34.208008Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb8dd2878d288391af55434e89dcd050f157a59d808148019a686465cade2b03

Aliases

arxiv: 1705.04963 · arxiv_version: 1705.04963v1 · doi: 10.48550/arxiv.1705.04963 · pith_short_12: 5OG5FB4NFCBZ · pith_short_16: 5OG5FB4NFCBZDL2V · pith_short_8: 5OG5FB4N

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/5OG5FB4NFCBZDL2VINHITXGQKD \
  | 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: eb8dd2878d288391af55434e89dcd050f157a59d808148019a686465cade2b03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90a69e515c6f0d9c00d180780f14c74fc421dd0f2df0baa6e0d8b62c90172a2d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2017-05-14T14:02:12Z",
    "title_canon_sha256": "0d1f02802c4ac0737f8f1b8c4fba079da1f4678a2fd9bdb6960a221ad677b4f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.04963",
    "kind": "arxiv",
    "version": 1
  }
}