Pith Number

pith:2RHQ3XPY

pith:1997:2RHQ3XPYDJRMTWIQCXES2VJY44

not attested not anchored not stored refs pending

The X-ray Spectrum of the Dwarf Nova SS Cyg in quiescence and outburst

C. Done, J.P. Osborne

arxiv:astro-ph/9703036 v1 · 1997-03-06 · 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{2RHQ3XPYDJRMTWIQCXES2VJY44}

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	2026-05-18T01:40:18.057976Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d44f0dddf81a62c9d91015c92d5538e709280a8dd3038e5b6329d2dd5de46ef9

Aliases

arxiv: astro-ph/9703036 · arxiv_version: astro-ph/9703036v1 · doi: 10.48550/arxiv.astro-ph/9703036 · pith_short_12: 2RHQ3XPYDJRM · pith_short_16: 2RHQ3XPYDJRMTWIQ · pith_short_8: 2RHQ3XPY

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/2RHQ3XPYDJRMTWIQCXES2VJY44 \
  | 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: d44f0dddf81a62c9d91015c92d5538e709280a8dd3038e5b6329d2dd5de46ef9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a62ba94a88f421b177e28fcf703c66c93b6d2e37d3068b58bec74aacff96f1d0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-03-06T09:35:36Z",
    "title_canon_sha256": "35c634c93a0011a4cc832a5484510cd8a6678bb37d0707b3e88f73e64fc44bbb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9703036",
    "kind": "arxiv",
    "version": 1
  }
}