Pith Number

pith:H4Q73WAK

pith:2012:H4Q73WAKZD32JTC7F27LCSDJZZ

not attested not anchored not stored refs pending

A configuration space for equivariant connective K-homology

Mario Velasquez

arxiv:1202.5502 v4 · 2012-02-24 · math.AT · math.KT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H4Q73WAKZD32JTC7F27LCSDJZZ}

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	2026-05-18T01:53:27.560398Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f21fdd80ac8f7a4cc5f2ebeb14869ce7f9105e2e4ce4824c4c2996682869d81

Aliases

arxiv: 1202.5502 · arxiv_version: 1202.5502v4 · doi: 10.48550/arxiv.1202.5502 · pith_short_12: H4Q73WAKZD32 · pith_short_16: H4Q73WAKZD32JTC7 · pith_short_8: H4Q73WAK

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/H4Q73WAKZD32JTC7F27LCSDJZZ \
  | 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: 3f21fdd80ac8f7a4cc5f2ebeb14869ce7f9105e2e4ce4824c4c2996682869d81

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5c192580599fee1d1d937e24f158b821866321f6226c4db6948647ac94b6457",
    "cross_cats_sorted": [
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2012-02-24T17:04:43Z",
    "title_canon_sha256": "eb7408c5bf04110df7de3ed8f5e212aadd60178c415e332290cb561c7c40e296"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.5502",
    "kind": "arxiv",
    "version": 4
  }
}