Pith Number

pith:BAQVUG7Q

pith:1999:BAQVUG7QV2UNFC5ZYB3VH2GALL

not attested not anchored not stored refs pending

Why Do Black--Hole X-ray Binaries Tend to Be Transient?

Jean-Pierre Lasota (IAP)

arxiv:astro-ph/9911143 v1 · 1999-11-09 · 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{BAQVUG7QV2UNFC5ZYB3VH2GALL}

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	2026-05-18T01:40:12.438125Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08215a1bf0aea8d28bb9c07753e8c05aedb2389d30a3f733378f0b83ff3329ad

Aliases

arxiv: astro-ph/9911143 · arxiv_version: astro-ph/9911143v1 · doi: 10.48550/arxiv.astro-ph/9911143 · pith_short_12: BAQVUG7QV2UN · pith_short_16: BAQVUG7QV2UNFC5Z · pith_short_8: BAQVUG7Q

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/BAQVUG7QV2UNFC5ZYB3VH2GALL \
  | 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: 08215a1bf0aea8d28bb9c07753e8c05aedb2389d30a3f733378f0b83ff3329ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9451b2b69e3d24629fd6e9bd3570bcf74e0769ae2e3e8f0213a2562b0c2dc1ee",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-11-09T13:45:53Z",
    "title_canon_sha256": "76ff8c04f6410d61113501ded8c7edb24aa1977ae35939f5e4f96176aea1a54a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9911143",
    "kind": "arxiv",
    "version": 1
  }
}