Pith Number

pith:7F2YXIHZ

pith:2012:7F2YXIHZAVL2UBDAEBOZVRH4AO

not attested not anchored not stored refs pending

Comprehensive Spectral Analysis of Cyg X-1 using RXTE Data

Rizwan Shahid, R. Misra, S. N. A. Jaaffrey

arxiv:1204.4633 v1 · 2012-04-20 · astro-ph.SR · 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{7F2YXIHZAVL2UBDAEBOZVRH4AO}

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	2026-05-18T01:57:48.136841Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9758ba0f90557aa0460205d9ac4fc03a7284a4956081287bc668abf3b043d63

Aliases

arxiv: 1204.4633 · arxiv_version: 1204.4633v1 · doi: 10.48550/arxiv.1204.4633 · pith_short_12: 7F2YXIHZAVL2 · pith_short_16: 7F2YXIHZAVL2UBDA · pith_short_8: 7F2YXIHZ

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/7F2YXIHZAVL2UBDAEBOZVRH4AO \
  | 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: f9758ba0f90557aa0460205d9ac4fc03a7284a4956081287bc668abf3b043d63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5b2bc8ee033d48753c8b775def445ef4e42265417c88e0e0f090802385edd0a",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-04-20T13:52:28Z",
    "title_canon_sha256": "ae73ab111746df8a0ee87d56c7a0c5f469bf8a388b22640db5eb3d67903ff72b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.4633",
    "kind": "arxiv",
    "version": 1
  }
}