Pith Number

pith:75TLYVOV

pith:2013:75TLYVOV3HSJRF5FO5KGR7N46S

not attested not anchored not stored refs pending

Cygnus X-1: shedding light on the spectral variability of a black hole

A. Bodaghee, A. Markowitz, A. Popp, D.M. Marcu, F. F\"urst, G.G. Pooley, J.A. Tomsick, J. Rodriguez, J. Wilms, K. Pottschmidt, M.A. Nowak, M. B\"ock, M. Cadolle Bel, M. Hanke, M. K\"uhnel, N. Hell, P. Laurent, R.E. Rothschild, S.B. Markoff, V. Grinberg

arxiv:1303.2678 v1 · 2013-03-11 · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{75TLYVOV3HSJRF5FO5KGR7N46S}

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	2026-05-18T03:31:08.428524Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff66bc55d5d9e49897a5775468fdbcf48842a0f9ca4805a3be7d9833e89a87d4

Aliases

arxiv: 1303.2678 · arxiv_version: 1303.2678v1 · doi: 10.48550/arxiv.1303.2678 · pith_short_12: 75TLYVOV3HSJ · pith_short_16: 75TLYVOV3HSJRF5F · pith_short_8: 75TLYVOV

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/75TLYVOV3HSJRF5FO5KGR7N46S \
  | 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: ff66bc55d5d9e49897a5775468fdbcf48842a0f9ca4805a3be7d9833e89a87d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ec082e32eedfde164db54251399295524471d6ae17f665b76da4bff84f2e519",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-03-11T20:26:53Z",
    "title_canon_sha256": "8fb3edf06697bada877dd8dd0937aa861150cf98f2565cdf6cc576ecebaa59d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.2678",
    "kind": "arxiv",
    "version": 1
  }
}