Pith Number

pith:ROAWSIJ2

pith:2012:ROAWSIJ2WRUUSDCLCXH67BM4ZQ

not attested not anchored not stored refs pending

Variable pulse profiles of Her X-1 repeating with the same irregular 35d clock as the turn-ons

D. Klochkov, D. Vasco, J. Wilms, K. Postnov, N. Shakura, R. E. Rothschild, R. Staubert

arxiv:1212.5472 v2 · 2012-12-21 · 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{ROAWSIJ2WRUUSDCLCXH67BM4ZQ}

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	2026-05-18T01:52:29.267545Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b8169213ab469490c4b15cfef859ccc265c5f8003fba5733fc3870f48c1d76c

Aliases

arxiv: 1212.5472 · arxiv_version: 1212.5472v2 · doi: 10.48550/arxiv.1212.5472 · pith_short_12: ROAWSIJ2WRUU · pith_short_16: ROAWSIJ2WRUUSDCL · pith_short_8: ROAWSIJ2

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/ROAWSIJ2WRUUSDCLCXH67BM4ZQ \
  | 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: 8b8169213ab469490c4b15cfef859ccc265c5f8003fba5733fc3870f48c1d76c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff2118ec238d33c87ba965025009ce00b7bf8a7d6a84324e492f65449457e9a5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-12-21T15:01:13Z",
    "title_canon_sha256": "b715844a52f20c2721641cde1ed79b5b5d7d31e67f73bc344b2fd2a1eda06b04"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.5472",
    "kind": "arxiv",
    "version": 2
  }
}