Pith Number

pith:DS7QBTAZ

pith:2007:DS7QBTAZFFVDHX4FOFBWUY3CF7

not attested not anchored not stored refs pending

Joint H-alpha and X-Ray Observations of Massive X-Ray Binaries. III. The Be X-ray Binaries HDE 245770 = A 0535+26 and X Persei

C. Finch, D. P. O'Brien, D. R. Gies, D. W. Wingert, E. D. Grundstrom, M. L. Trippe, M. V. McSwain, R. A. Zaballa, R. L. Riddle, S. J. Williams, T. S. Boyajian, W. Huang

arxiv:astro-ph/0702283 v1 · 2007-02-12 · 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{DS7QBTAZFFVDHX4FOFBWUY3CF7}

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	2026-05-18T04:29:06.594872Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1cbf00cc19296a33df8571436a63622ff5a48b2cc275bfbbfb5187eed1d748dc

Aliases

arxiv: astro-ph/0702283 · arxiv_version: astro-ph/0702283v1 · doi: 10.48550/arxiv.astro-ph/0702283 · pith_short_12: DS7QBTAZFFVD · pith_short_16: DS7QBTAZFFVDHX4F · pith_short_8: DS7QBTAZ

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/DS7QBTAZFFVDHX4FOFBWUY3CF7 \
  | 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: 1cbf00cc19296a33df8571436a63622ff5a48b2cc275bfbbfb5187eed1d748dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56d2603056dab3c1436cdc0aafd89d9a05df6ad2ef0e02e9411fcda464139a8e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-02-12T20:37:13Z",
    "title_canon_sha256": "877edfffdf3226772a3a32ba2149e5d519f3fe76a193d3cbe5964fcf5a286848"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0702283",
    "kind": "arxiv",
    "version": 1
  }
}