Pith Number

pith:XIKYJ3SA

pith:2026:XIKYJ3SAHHVXHBQHSLLPUQ7XYN

not attested not anchored not stored refs pending

Energy-Resolved Limits on Orbital X-ray Polarization Modulation in Cygnus X-1

Bert Vander Meulen, Henric Krawczynski, Kun Hu, Sohee Chun

arxiv:2606.30894 v1 · 2026-06-29 · 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{XIKYJ3SAHHVXHBQHSLLPUQ7XYN}

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	2026-07-01T00:17:20.721261Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba1584ee4039eb73860792d6fa43f7c377c193f08545556223d6374e08442f84

Aliases

arxiv: 2606.30894 · arxiv_version: 2606.30894v1 · doi: 10.48550/arxiv.2606.30894 · pith_short_12: XIKYJ3SAHHVX · pith_short_16: XIKYJ3SAHHVXHBQH · pith_short_8: XIKYJ3SA

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/XIKYJ3SAHHVXHBQHSLLPUQ7XYN \
  | 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: ba1584ee4039eb73860792d6fa43f7c377c193f08545556223d6374e08442f84

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6301dee528d5870dc9791c05e539647a787f0d4fa5192adbc2514d5c0343b03",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-06-29T20:32:49Z",
    "title_canon_sha256": "768fdb32dfa37676d8b4e55d23686728e063e13feddf9d86a253e45b2f5c9597"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.30894",
    "kind": "arxiv",
    "version": 1
  }
}