Pith Number

pith:O2J74Y54

pith:2023:O2J74Y543LDB6PUJJEO5USVLPR

not attested not anchored not stored refs pending

Interpreting the long-term variability of the changing-look AGN Mrk 1018

C. Vignali, G. A. Matzeu, M. Cignoni, P. Severgnini, S. Veronese

arxiv:2312.07663 v1 · 2023-12-12 · 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{O2J74Y543LDB6PUJJEO5USVLPR}

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	2026-07-05T07:23:34.547375Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7693fe63bcdac61f3e89491dda4aab7c4b35d41b4f0bd81f291676be48db9529

Aliases

arxiv: 2312.07663 · arxiv_version: 2312.07663v1 · doi: 10.48550/arxiv.2312.07663 · pith_short_12: O2J74Y543LDB · pith_short_16: O2J74Y543LDB6PUJ · pith_short_8: O2J74Y54

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/O2J74Y543LDB6PUJJEO5USVLPR \
  | 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: 7693fe63bcdac61f3e89491dda4aab7c4b35d41b4f0bd81f291676be48db9529

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29ead33d386034faec18060c032d98af71aca7b78523153d3095bd9b2c790cb4",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2023-12-12T19:00:06Z",
    "title_canon_sha256": "a6b5f67aa62382201442db9d40dd51bdd91275566168d688e2056f7b265db287"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2312.07663",
    "kind": "arxiv",
    "version": 1
  }
}