Pith Number

pith:WVDUAV2Y

pith:2000:WVDUAV2YKJQD44MCC7SYCOT74H

not attested not anchored not stored refs pending

Black hole X-ray binaries: A new view on soft-hard spectral transitions

B.F. Liu, E. Meyer-Hofmeister, F. Meyer

arxiv:astro-ph/0002053 v1 · 2000-02-02 · 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{WVDUAV2YKJQD44MCC7SYCOT74H}

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	2026-05-18T01:07:46.907935Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b54740575852603e718217e5813a7fe1f212af32bc7c2bf109db75e5e585e5ea

Aliases

arxiv: astro-ph/0002053 · arxiv_version: astro-ph/0002053v1 · doi: 10.48550/arxiv.astro-ph/0002053 · pith_short_12: WVDUAV2YKJQD · pith_short_16: WVDUAV2YKJQD44MC · pith_short_8: WVDUAV2Y

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/WVDUAV2YKJQD44MCC7SYCOT74H \
  | 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: b54740575852603e718217e5813a7fe1f212af32bc7c2bf109db75e5e585e5ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab224a171126aa9ee4acde484829e15002f66eca7d6bad64a01e11d37cccd8bf",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-02-02T15:19:41Z",
    "title_canon_sha256": "ac64870aff0a3f88d410f7d0fbfb4c3456a5ee6022172d10d8d9790f9e0e69e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0002053",
    "kind": "arxiv",
    "version": 1
  }
}