Pith Number

pith:F6RQ64ZA

pith:2008:F6RQ64ZA3FUJH64RYPKAND5IE2

not attested not anchored not stored refs pending

New X-ray observations of the old nova CP Puppis and of the more recent nova V351 Pup

A. Bianchini, D. de Martino, K. Mukai, M. Orio, S. Howell

arxiv:0809.3992 v1 · 2008-09-23 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F6RQ64ZA3FUJH64RYPKAND5IE2}

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	2026-05-18T04:29:26.543334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fa30f7320d96893fb91c3d4068fa826a9669f396de67dedbe46fc9cffd7ab70

Aliases

arxiv: 0809.3992 · arxiv_version: 0809.3992v1 · doi: 10.48550/arxiv.0809.3992 · pith_short_12: F6RQ64ZA3FUJ · pith_short_16: F6RQ64ZA3FUJH64R · pith_short_8: F6RQ64ZA

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/F6RQ64ZA3FUJH64RYPKAND5IE2 \
  | 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: 2fa30f7320d96893fb91c3d4068fa826a9669f396de67dedbe46fc9cffd7ab70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a71e60558c48a666a6fff23295ad1bac2910da798d83969422e9b2b00ddd2aa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-23T19:28:18Z",
    "title_canon_sha256": "da997ad4992996e1d4659b34f8d8bdbaee91c7ce0a93a878c7b5a963a2e8b80b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.3992",
    "kind": "arxiv",
    "version": 1
  }
}