Pith Number

pith:U6LVL422

pith:2002:U6LVL422XWTNFQXMRHNZGCQPMV

not attested not anchored not stored refs pending

XMM-Newton observations of the polars EV UMa, RX J1002-19 and RX J1007-20

Gavin Ramsay, Mark Cropper (MSSL/UCL)

arxiv:astro-ph/0209096 v1 · 2002-09-05 · 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{U6LVL422XWTNFQXMRHNZGCQPMV}

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	2026-05-18T01:07:44.528098Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a79755f35abda6d2c2ec89db930a0f6566dc9185dcf454f79406fd6b82f22a93

Aliases

arxiv: astro-ph/0209096 · arxiv_version: astro-ph/0209096v1 · doi: 10.48550/arxiv.astro-ph/0209096 · pith_short_12: U6LVL422XWTN · pith_short_16: U6LVL422XWTNFQXM · pith_short_8: U6LVL422

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/U6LVL422XWTNFQXMRHNZGCQPMV \
  | 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: a79755f35abda6d2c2ec89db930a0f6566dc9185dcf454f79406fd6b82f22a93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32af6af532f78b345569e038906a0b9c80fb0852e76fa15d5b0f035ebb7161e3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-09-05T14:00:04Z",
    "title_canon_sha256": "32d4f77175c92dd7d781f3a39f0559c2b0ac55759449c67a5d87a9d7e1a2e009"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0209096",
    "kind": "arxiv",
    "version": 1
  }
}