Pith Number

pith:YVKISNXY

pith:2005:YVKISNXYYL3V6ZDPM3STEWQ7LX

not attested not anchored not stored refs pending

Is FIRST J102347.6+003841 Really a Cataclysmic Binary?

E. Armstrong (Columbia), J. R. Thorstensen (Dartmouth)

arxiv:astro-ph/0504523 v1 · 2005-04-24 · 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{YVKISNXYYL3V6ZDPM3STEWQ7LX}

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	2026-07-04T15:26:29.936567Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5548936f8c2f75f646f66e5325a1f5dd710226495c6d8f23786dd506f37ed8c

Aliases

arxiv: astro-ph/0504523 · arxiv_version: astro-ph/0504523v1 · doi: 10.48550/arxiv.astro-ph/0504523 · pith_short_12: YVKISNXYYL3V · pith_short_16: YVKISNXYYL3V6ZDP · pith_short_8: YVKISNXY

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/YVKISNXYYL3V6ZDPM3STEWQ7LX \
  | 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: c5548936f8c2f75f646f66e5325a1f5dd710226495c6d8f23786dd506f37ed8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b5b5b0bd0496ae1b60b7488ab23b99bdada8cbc7e6b44a7f664833af88171cf",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-04-24T01:02:52Z",
    "title_canon_sha256": "a6b1443e252bbb484908c3d2dd9a78c542e527cb44c768a2beeaa33dbcc40308"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0504523",
    "kind": "arxiv",
    "version": 1
  }
}