Pith Number

pith:UJRFF64C

pith:2016:UJRFF64CPFDCHGVQHBVU5CKXYP

not attested not anchored not stored refs pending

Evidence for an Evolving Cyclotron Line Energy in 4U 1538-522

Dmitry Klochkov, Felix F\"urst, J\"orn Wilms, Katja Pottschmidt, Paul B. Hemphill, Peter Kretschmar, Richard E. Rothschild, R\"udiger Staubert, Victoria Grinberg

arxiv:1603.02198 v1 · 2016-03-07 · 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{UJRFF64CPFDCHGVQHBVU5CKXYP}

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	2026-05-18T01:19:31.386848Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a26252fb827946239ab0386b4e8957c3da93a75ad4fe7a0919e0c1da6595bf41

Aliases

arxiv: 1603.02198 · arxiv_version: 1603.02198v1 · doi: 10.48550/arxiv.1603.02198 · pith_short_12: UJRFF64CPFDC · pith_short_16: UJRFF64CPFDCHGVQ · pith_short_8: UJRFF64C

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/UJRFF64CPFDCHGVQHBVU5CKXYP \
  | 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: a26252fb827946239ab0386b4e8957c3da93a75ad4fe7a0919e0c1da6595bf41

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b68c2b6c4fd272a37337c50f3b30ac42687d18d1d8ea4f0d93651bc7689998cd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-03-07T18:49:31Z",
    "title_canon_sha256": "ac83b5f86fa9419b8080a0e069dfbab680fdc2196dc120b5bbb5143098714c3f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.02198",
    "kind": "arxiv",
    "version": 1
  }
}