Pith Number

pith:PHKIXY4Q

pith:2012:PHKIXY4QE5X4RGRVSQHSYAHNAW

not attested not anchored not stored refs pending

Classifying theory for simplicial parametrized groups

Danny Stevenson

arxiv:1203.2461 v2 · 2012-03-12 · 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{PHKIXY4QE5X4RGRVSQHSYAHNAW}

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	2026-05-18T01:16:07.705162Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79d48be390276fc89a35940f2c00ed0586898ca4b695218ed5eff2c3dc06f3fa

Aliases

arxiv: 1203.2461 · arxiv_version: 1203.2461v2 · doi: 10.48550/arxiv.1203.2461 · pith_short_12: PHKIXY4QE5X4 · pith_short_16: PHKIXY4QE5X4RGRV · pith_short_8: PHKIXY4Q

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/PHKIXY4QE5X4RGRVSQHSYAHNAW \
  | 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: 79d48be390276fc89a35940f2c00ed0586898ca4b695218ed5eff2c3dc06f3fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c712b2990184bda3fc94a145ee7cd947f877bf8add86bdd2f58d467a6f5a7b0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2012-03-12T12:02:55Z",
    "title_canon_sha256": "3b7f7f25606051f51fbb05989a7116d58f31230bb9ef93b154b18505ee628a32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.2461",
    "kind": "arxiv",
    "version": 2
  }
}