Pith Number

pith:PQEX6IUB

pith:2009:PQEX6IUBPQUM3POC3SJ5L3SJUZ

not attested not anchored not stored refs pending

Companion stars of Type Ia supernovae and hypervelocity stars

Bo Wang, Zhanwen Han

arxiv:0911.3316 v2 · 2009-11-17 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PQEX6IUBPQUM3POC3SJ5L3SJUZ}

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	2026-05-18T03:54:49.645202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c097f22817c28cdbdc2dc93d5ee49a66ab641625992231cde0703b19f9d765a

Aliases

arxiv: 0911.3316 · arxiv_version: 0911.3316v2 · doi: 10.48550/arxiv.0911.3316 · pith_short_12: PQEX6IUBPQUM · pith_short_16: PQEX6IUBPQUM3POC · pith_short_8: PQEX6IUB

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/PQEX6IUBPQUM3POC3SJ5L3SJUZ \
  | 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: 7c097f22817c28cdbdc2dc93d5ee49a66ab641625992231cde0703b19f9d765a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "870f708aa4833f0fbacd9091dbabf5a22a7f8ae5fa5ae152878c9bc4ab0d9231",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-11-17T14:26:01Z",
    "title_canon_sha256": "f1731836571a58be434eeb3184e200fbb7ca9c49c1d50a598e506ab39229aee7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.3316",
    "kind": "arxiv",
    "version": 2
  }
}