Pith Number

pith:7NWB7ZHV

pith:2012:7NWB7ZHVYIN4WI43XOXAX2W6J2

not attested not anchored not stored refs pending

A plethora of inertial products

Dan Edidin, Takashi Kimura, Tyler J. Jarvis

arxiv:1209.2068 v2 · 2012-09-10 · math.AG · 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{7NWB7ZHVYIN4WI43XOXAX2W6J2}

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	2026-05-18T01:22:26.251345Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb6c1fe4f5c21bcb239bbbae0beade4eb4162937ec3dfb3da3038d8026f36bc5

Aliases

arxiv: 1209.2068 · arxiv_version: 1209.2068v2 · doi: 10.48550/arxiv.1209.2068 · pith_short_12: 7NWB7ZHVYIN4 · pith_short_16: 7NWB7ZHVYIN4WI43 · pith_short_8: 7NWB7ZHV

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/7NWB7ZHVYIN4WI43XOXAX2W6J2 \
  | 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: fb6c1fe4f5c21bcb239bbbae0beade4eb4162937ec3dfb3da3038d8026f36bc5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "403c12520b703faec50809c3dd4699ba3c488830860100d24871de3e7d801902",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-09-10T17:27:46Z",
    "title_canon_sha256": "8832859370cf5926f204c2daefc4a534f813bba0da1e8707e1c86c25b3a8bfb3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.2068",
    "kind": "arxiv",
    "version": 2
  }
}