Pith Number

pith:K7MAFEHW

pith:2014:K7MAFEHWG5FERTXTZYDBU2BKGB

not attested not anchored not stored refs pending

Cohomological Finiteness Properties of Groups

Simon St John-Green

arxiv:1410.4363 v1 · 2014-10-16 · math.GR · 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{K7MAFEHWG5FERTXTZYDBU2BKGB}

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	2026-05-18T02:39:56.333387Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57d80290f6374a48cef3ce061a682a306cb306db5715d4eafe96b35ff41ada3a

Aliases

arxiv: 1410.4363 · arxiv_version: 1410.4363v1 · doi: 10.48550/arxiv.1410.4363 · pith_short_12: K7MAFEHWG5FE · pith_short_16: K7MAFEHWG5FERTXT · pith_short_8: K7MAFEHW

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/K7MAFEHWG5FERTXTZYDBU2BKGB \
  | 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: 57d80290f6374a48cef3ce061a682a306cb306db5715d4eafe96b35ff41ada3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c485a09b6ad7663bd4b0cc5d50b5aa3e556d2605354ab884a7fb99c522ad2b93",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2014-10-16T10:26:02Z",
    "title_canon_sha256": "c8ee5b39bed5c4148a6bf9822f031c9e8d46e23fffa39ea94f7e14fdd6c77547"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.4363",
    "kind": "arxiv",
    "version": 1
  }
}