Pith Number

pith:VQBBMTHL

pith:2012:VQBBMTHLLPNJ4KRWSYZRP5Z33N

not attested not anchored not stored refs pending

The SW Sex enigma

D. A. Smith, T. R. Marsh, V. S. Dhillon

arxiv:1210.7145 v1 · 2012-10-26 · astro-ph.SR · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VQBBMTHLLPNJ4KRWSYZRP5Z33N}

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	2026-05-18T01:53:37.237238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac02164ceb5bda9e2a36963317f73bdb6c38479e0e6d0681463b0ca55f71510b

Aliases

arxiv: 1210.7145 · arxiv_version: 1210.7145v1 · doi: 10.48550/arxiv.1210.7145 · pith_short_12: VQBBMTHLLPNJ · pith_short_16: VQBBMTHLLPNJ4KRW · pith_short_8: VQBBMTHL

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/VQBBMTHLLPNJ4KRWSYZRP5Z33N \
  | 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: ac02164ceb5bda9e2a36963317f73bdb6c38479e0e6d0681463b0ca55f71510b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17d6c78b3c4f693373cf7aa97d9ad59f9abbc5a4250c53375d99d0ce51b2e26e",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-10-26T13:43:08Z",
    "title_canon_sha256": "bb46eeb42e26639815a8a974d555bb87e0d50f8fc7b621476c8dc61fc6254ae4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.7145",
    "kind": "arxiv",
    "version": 1
  }
}