Pith Number

pith:EI5RJXRO

pith:1995:EI5RJXRO46FFEBJRDSX4KMAHWL

not attested not anchored not stored refs pending

On the Spectral Slopes of Hard X-ray Emission from Black Hole Candidates

Ken Ebisawa, Lev G. Titarchuk, Sandip K. Chakrabarti

arxiv:astro-ph/9512062 v1 · 1995-12-11 · 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{EI5RJXRO46FFEBJRDSX4KMAHWL}

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	2026-05-18T01:40:22.195835Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

223b14de2ee78a5205311cafc53007b2eb7701cc17976eb41f16008d315d2d52

Aliases

arxiv: astro-ph/9512062 · arxiv_version: astro-ph/9512062v1 · doi: 10.48550/arxiv.astro-ph/9512062 · pith_short_12: EI5RJXRO46FF · pith_short_16: EI5RJXRO46FFEBJR · pith_short_8: EI5RJXRO

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/EI5RJXRO46FFEBJRDSX4KMAHWL \
  | 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: 223b14de2ee78a5205311cafc53007b2eb7701cc17976eb41f16008d315d2d52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ebfa13bd3c90a8c04ea2609ede9d575d27aff61c1763aa83f290f54915d69f5a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-12-11T16:20:00Z",
    "title_canon_sha256": "c8ad012535abb686c6bcc3bab94358f0819493da5deb0ef96a8f1a43b47fb083"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9512062",
    "kind": "arxiv",
    "version": 1
  }
}