Pith Number

pith:LSFKFK2X

pith:2018:LSFKFK2XYO6DQUMDUZZ4KHFQCA

not attested not anchored not stored refs pending

Spectropolarimetry of Seyfert 1 galaxies with equatorial scattering: Black hole masses and Broad Line Region characteristics

A.I. Shapovalova, L. C. Popovic, V. L. Afanasiev

arxiv:1810.12164 v1 · 2018-10-29 · 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{LSFKFK2XYO6DQUMDUZZ4KHFQCA}

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	2026-05-17T23:59:48.796936Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c8aa2ab57c3bc385183a673c51cb01028b6e895f14f80d2c45ca749f231e964

Aliases

arxiv: 1810.12164 · arxiv_version: 1810.12164v1 · doi: 10.48550/arxiv.1810.12164 · pith_short_12: LSFKFK2XYO6D · pith_short_16: LSFKFK2XYO6DQUMD · pith_short_8: LSFKFK2X

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/LSFKFK2XYO6DQUMDUZZ4KHFQCA \
  | 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: 5c8aa2ab57c3bc385183a673c51cb01028b6e895f14f80d2c45ca749f231e964

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce854018ee1a58deb0a36ea6c0ddf367b80ed8bed65b4ff4f225aac8e6b97dbf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-10-29T14:53:15Z",
    "title_canon_sha256": "9bd8e71bb402b1a99507d9834dd9e875b5fb542e8d7b271a0b125b1332212d59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.12164",
    "kind": "arxiv",
    "version": 1
  }
}