Pith Number

pith:QVEUMR4Q

pith:2012:QVEUMR4QZFH6AOPW64DZECIDZH

not attested not anchored not stored refs pending

The rate of WD-WD head-on collisions may be as high as the SNe Ia rate

Boaz Katz (IAS), Subo Dong (IAS)

arxiv:1211.4584 v2 · 2012-11-19 · 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{QVEUMR4QZFH6AOPW64DZECIDZH}

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	2026-05-18T03:40:15.631263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8549464790c94fe039f6f707920903c9f1d910664d29cd64cfdb4bcc6f3bea6f

Aliases

arxiv: 1211.4584 · arxiv_version: 1211.4584v2 · doi: 10.48550/arxiv.1211.4584 · pith_short_12: QVEUMR4QZFH6 · pith_short_16: QVEUMR4QZFH6AOPW · pith_short_8: QVEUMR4Q

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/QVEUMR4QZFH6AOPW64DZECIDZH \
  | 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: 8549464790c94fe039f6f707920903c9f1d910664d29cd64cfdb4bcc6f3bea6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afd139299dfcf025e0eb180c87c1e90345d6b6ac2c3fcfc47b2e18f66631f2b3",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-11-19T21:00:05Z",
    "title_canon_sha256": "89008c9aa20024a3fa36668c8cae645cdd0a19c413d01d0508a50b8f6bee9197"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.4584",
    "kind": "arxiv",
    "version": 2
  }
}