Pith Number

pith:55MBXFGZ

pith:2011:55MBXFGZFM2JYGKQ7EZ54I52SY

not attested not anchored not stored refs pending

The broad iron Kalpha line of Cygnus X-1 as seen by XMM-Newton in the EPIC-pn modified timing mode

C.S. Reynolds, E. Kendziorra, J. Wilms, K. Pottschmidt, M.A. Nowak, M.G.F. Kirsch, R. Duro, R. Staubert, S. Fritz, T. Dauser

arxiv:1108.1157 v1 · 2011-08-04 · 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{55MBXFGZFM2JYGKQ7EZ54I52SY}

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	2026-05-18T02:01:02.719265Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef581b94d92b349c1950f933de23ba96334a54c1c716c76bdad06b81459bf59f

Aliases

arxiv: 1108.1157 · arxiv_version: 1108.1157v1 · doi: 10.48550/arxiv.1108.1157 · pith_short_12: 55MBXFGZFM2J · pith_short_16: 55MBXFGZFM2JYGKQ · pith_short_8: 55MBXFGZ

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/55MBXFGZFM2JYGKQ7EZ54I52SY \
  | 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: ef581b94d92b349c1950f933de23ba96334a54c1c716c76bdad06b81459bf59f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76b02567a243184a73bfa3e9370d48db9ffba7c09af9cf4d5dd01f630de820e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-08-04T18:20:54Z",
    "title_canon_sha256": "65722b0a036b45bf414796754679818838c8c97d823e2eee1285240324b3c8c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.1157",
    "kind": "arxiv",
    "version": 1
  }
}