Pith Number

pith:PB5S2REB

pith:2009:PB5S2REBZVAOCKSLJRDNGZVWVQ

not attested not anchored not stored refs pending

The expanding bipolar shell of the helium nova V445 Puppis

B. Warner, D.P. Smits, D. Steeghs, G.H.A. Roelofs, G. Nelemans, M. Karovska, P.A. Woudt, P.J. Groot, T. Nagayama, T. O'Brien, T.R. Marsh

arxiv:0910.1069 v1 · 2009-10-06 · 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{PB5S2REBZVAOCKSLJRDNGZVWVQ}

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	2026-05-18T02:34:19.974394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

787b2d4481cd40e12a4b4c46d366b6ac28cbbd91a201eb3ee3f0d0c7b206e76c

Aliases

arxiv: 0910.1069 · arxiv_version: 0910.1069v1 · doi: 10.48550/arxiv.0910.1069 · pith_short_12: PB5S2REBZVAO · pith_short_16: PB5S2REBZVAOCKSL · pith_short_8: PB5S2REB

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/PB5S2REBZVAOCKSLJRDNGZVWVQ \
  | 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: 787b2d4481cd40e12a4b4c46d366b6ac28cbbd91a201eb3ee3f0d0c7b206e76c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9c0ef52069997be300ee798e99e7b6f77f2c674c6c26cfd51737cd06cc0b7d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-10-06T18:36:50Z",
    "title_canon_sha256": "fb73757b5fe809d4734e1d31154ef33240c08d6ffd0ba79385658a10c07a6c2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.1069",
    "kind": "arxiv",
    "version": 1
  }
}