Pith Number

pith:SIBFPSW2

pith:2002:SIBFPSW2WFZMEP7XWIDMNBLD3O

not attested not anchored not stored refs pending

1ES 1927+654: Persistent and rapid X-ray variability in an AGN with low intrinsic neutral X-ray absorption and narrow optical emission lines

4), Baltimore County; (5) University of Crete; (6) University of Washington), E. Perlman (3, I.E. Papadakis (5), I. Lehmann (1), L. Gallo (1), M. Dennefeld (2), P. Predehl (1), S. Anderson (6)((1) MPE; (2) IAP Paris; (3) Johns Hopkins University; (4) University of Maryland, Th. Boller (1), V. Burwitz (1), W. Voges (1)

arxiv:astro-ph/0210369 v1 · 2002-10-16 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SIBFPSW2WFZMEP7XWIDMNBLD3O}

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.

Cited by

1 paper in Pith

The emergence of X-ray emission lines during relativistic radio-jet formation in the changing-look active galactic nucleus 1ES 1927+654

Receipt and verification

First computed	2026-07-04T15:18:02.018357Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

920257cadab172c23ff7b206c68563dba600b23877cd2977c12773a57cfc0e73

Aliases

arxiv: astro-ph/0210369 · arxiv_version: astro-ph/0210369v1 · doi: 10.48550/arxiv.astro-ph/0210369 · pith_short_12: SIBFPSW2WFZM · pith_short_16: SIBFPSW2WFZMEP7X · pith_short_8: SIBFPSW2

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/SIBFPSW2WFZMEP7XWIDMNBLD3O \
  | 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: 920257cadab172c23ff7b206c68563dba600b23877cd2977c12773a57cfc0e73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65dc2d71909652e14ef59883a52497c409465bc0c0cbdea94e586183a4c05cf4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-10-16T16:12:51Z",
    "title_canon_sha256": "7087a1b8e69b30a33b518e064f46fe1939782cfa2dc039e643b1ba5cf4a7c062"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0210369",
    "kind": "arxiv",
    "version": 1
  }
}