Pith Number

pith:2E5ERAFR

pith:2018:2E5ERAFRYF74OQZGTQSZNJODI3

not attested not anchored not stored refs pending

Optical polarisation variability of narrow line Seyfert 1 galaxies

D. Blinov, E. Angelakis, I. Myserlis, J. A. Zensus, J. Eggen, N. Marchilli, R. Itoh, S. Kiehlmann, S. Komossa

arxiv:1807.10485 v1 · 2018-07-27 · 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{2E5ERAFRYF74OQZGTQSZNJODI3}

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	2026-05-18T00:09:40.438932Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d13a4880b1c17fc743269c2596a5c346cb29e843c225b96a4a4b308c67702ae5

Aliases

arxiv: 1807.10485 · arxiv_version: 1807.10485v1 · doi: 10.48550/arxiv.1807.10485 · pith_short_12: 2E5ERAFRYF74 · pith_short_16: 2E5ERAFRYF74OQZG · pith_short_8: 2E5ERAFR

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/2E5ERAFRYF74OQZGTQSZNJODI3 \
  | 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: d13a4880b1c17fc743269c2596a5c346cb29e843c225b96a4a4b308c67702ae5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc6d9b5fc0c9edd3220b5597b6ba5c06919e700e457c0ac73cd9ae55d83372e1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-07-27T08:19:58Z",
    "title_canon_sha256": "864be49dd48de7fe127c6b9a1008f20a360d3421ab0c50236803e924ca8a7ed6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.10485",
    "kind": "arxiv",
    "version": 1
  }
}