Pith Number

pith:SZK6L6B6

pith:2016:SZK6L6B6OP72QDZRXTMSIV4F77

not attested not anchored not stored refs pending

A long term study of AGN X-ray variability. Structure function analysis on a ROSAT-XMM quasar sample

F. La Franca, F. Ursini, F. Vagnetti, M. Paolillo, R. Middei, S. Bianchi

arxiv:1612.08547 v2 · 2016-12-27 · astro-ph.HE · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SZK6L6B6OP72QDZRXTMSIV4F77}

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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

Strong X-ray Variability of I Zwicky 1: Obscuration from Clumpy Accretion-Disk Winds

Receipt and verification

First computed	2026-05-18T00:49:10.382736Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9655e5f83e73ffa80f31bcd9245785ffdca7b9fe2cd49bb8cfc2c4dba3188dc6

Aliases

arxiv: 1612.08547 · arxiv_version: 1612.08547v2 · doi: 10.48550/arxiv.1612.08547 · pith_short_12: SZK6L6B6OP72 · pith_short_16: SZK6L6B6OP72QDZR · pith_short_8: SZK6L6B6

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/SZK6L6B6OP72QDZRXTMSIV4F77 \
  | 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: 9655e5f83e73ffa80f31bcd9245785ffdca7b9fe2cd49bb8cfc2c4dba3188dc6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b1af2badeacdb357c3810949e1e02cbbddb468036b125d60dbadb026bb0f06d",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-12-27T09:21:48Z",
    "title_canon_sha256": "92320c4ff180f0539864c09c70cd8ae8933fde24e318719f1e49ca62f36c51c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.08547",
    "kind": "arxiv",
    "version": 2
  }
}