Pith Number

pith:LZ45SYPH

pith:2009:LZ45SYPHZRGRGVBHAEWFP6ASB3

not attested not anchored not stored refs pending

X-ray and UV observations of nova V598 Puppis between 147 and 255 days after outburst

(2) XMM SOC, (3) Liverpool John Moores University, (4) West Chester University, (5) Arizona State University), A.M. Read (1), A.P. Beardmore (1), G.J. Schwarz (4), J.P. Osborne (1), J.-U. Ness (2), K.L. Page (1), M. Bode (3), P.A. Evans (1), S. Starrfield (5) ((1) University of Leicester

arxiv:0909.1670 v1 · 2009-09-09 · astro-ph.HE

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

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	2026-05-18T02:11:58.122369Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e79d961e7cc4d135427012c57f8120edfcb72a7aad396de5063fb9244c75b5b

Aliases

arxiv: 0909.1670 · arxiv_version: 0909.1670v1 · doi: 10.48550/arxiv.0909.1670 · pith_short_12: LZ45SYPHZRGR · pith_short_16: LZ45SYPHZRGRGVBH · pith_short_8: LZ45SYPH

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/LZ45SYPHZRGRGVBHAEWFP6ASB3 \
  | 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: 5e79d961e7cc4d135427012c57f8120edfcb72a7aad396de5063fb9244c75b5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b44c5a6fdb0010bc831b8717cbf21f25285fdd3cd83aa35650c87aa6b79cb30",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-09-09T10:39:08Z",
    "title_canon_sha256": "bb51834cae264da99577d0f2d706db0e1e996e700c59d99e9fd1da855222c191"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.1670",
    "kind": "arxiv",
    "version": 1
  }
}