Pith Number

pith:T3JSMAFA

pith:2000:T3JSMAFAVREXNIJ454CFB7RZ4L

not attested not anchored not stored refs pending

Cassiopeia A: on the origin of the hard X-ray continuum and the implication of the observed O VIII Ly-alpha/Ly-beta distribution

B. Aschenbach, J.A.M. Bleeker, J.S. Kaastra, J. Vink, K. Dennerl, K. van der Heyden, R. Willingale

arxiv:astro-ph/0010606 v1 · 2000-10-30 · 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{T3JSMAFAVREXNIJ454CFB7RZ4L}

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	2026-07-04T16:17:30.407804Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ed32600a0ac4976a13cef0450fe39e2e2749ecf0fd34fbd1286c45c122fb651

Aliases

arxiv: astro-ph/0010606 · arxiv_version: astro-ph/0010606v1 · doi: 10.48550/arxiv.astro-ph/0010606 · pith_short_12: T3JSMAFAVREX · pith_short_16: T3JSMAFAVREXNIJ4 · pith_short_8: T3JSMAFA

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/T3JSMAFAVREXNIJ454CFB7RZ4L \
  | 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: 9ed32600a0ac4976a13cef0450fe39e2e2749ecf0fd34fbd1286c45c122fb651

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71aed3d7d18a0b3716c1d879311d9c91c116cdeba13062f6630bc86840236265",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-10-30T11:45:21Z",
    "title_canon_sha256": "eb4be50fbc46d1837a868cc1fc843e4afc1dcca45b13d4228b6b0079652c012e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0010606",
    "kind": "arxiv",
    "version": 1
  }
}