Pith Number

pith:RFIGCZJ2

pith:2012:RFIGCZJ2FYD6XXFKD2RSTC5PJF

not attested not anchored not stored refs pending

The Brown-Comenetz dual of the K(2)-local sphere at the prime 3

Hans-Werner Henn, Paul G. Goerss

arxiv:1212.2836 v2 · 2012-12-12 · 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{RFIGCZJ2FYD6XXFKD2RSTC5PJF}

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	2026-05-18T02:52:23.727538Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

895061653a2e07ebdcaa1ea3298baf4967b596cf55e36bb56108223c6fe896a1

Aliases

arxiv: 1212.2836 · arxiv_version: 1212.2836v2 · doi: 10.48550/arxiv.1212.2836 · pith_short_12: RFIGCZJ2FYD6 · pith_short_16: RFIGCZJ2FYD6XXFK · pith_short_8: RFIGCZJ2

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/RFIGCZJ2FYD6XXFKD2RSTC5PJF \
  | 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: 895061653a2e07ebdcaa1ea3298baf4967b596cf55e36bb56108223c6fe896a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f86bc75df4bd3db509b3eaa54a6b92c6168dac440e6e472b1aa32734245135f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2012-12-12T15:09:41Z",
    "title_canon_sha256": "9baa7392fcce6fa67cacae0a178100b1b86679e33d5fbb0363861744beec9958"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.2836",
    "kind": "arxiv",
    "version": 2
  }
}