Pith Number

pith:54CTRQGQ

pith:2018:54CTRQGQT2C226EHXBOH6F5QNO

not attested not anchored not stored refs pending

Infrared variability of radio-loud narrow-line Seyfert 1 galaxies

A. Mo\'or, K. \'E. Gab\'anyi, S. Frey

arxiv:1807.05802 v1 · 2018-07-16 · astro-ph.GA · 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{54CTRQGQT2C226EHXBOH6F5QNO}

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	2026-05-18T00:10:36.430334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef0538c0d09e85ad7887b85c7f17b06bb0d562f144010b26e1b5fafc5e18d805

Aliases

arxiv: 1807.05802 · arxiv_version: 1807.05802v1 · doi: 10.48550/arxiv.1807.05802 · pith_short_12: 54CTRQGQT2C2 · pith_short_16: 54CTRQGQT2C226EH · pith_short_8: 54CTRQGQ

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/54CTRQGQT2C226EHXBOH6F5QNO \
  | 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: ef0538c0d09e85ad7887b85c7f17b06bb0d562f144010b26e1b5fafc5e18d805

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4aab5bee3b0d84bcd5aa22097197c312922612835916e33fcd128aef8a9f0a66",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-07-16T11:44:58Z",
    "title_canon_sha256": "c139387519e304e7a32fee134ebf2848cb974a134f4a7addb3aa734bf407c617"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.05802",
    "kind": "arxiv",
    "version": 1
  }
}