Pith Number

pith:CHHQYSYD

pith:2020:CHHQYSYDAJSCPGDZ2QZZQCGX77

not attested not anchored not stored refs pending

Extreme variability in an active galactic nucleus: Gaia16aax

B. McKernan, C. J. Nixon, E. Kankare, F. Onori, G. Cannizzaro, J. E. Pringle, J. Harmanen, K. E. S. Ford, {\L}. Wyrzykowski, M. Fraser, P. C. Hewett, P. G. Jonker, S. Mattila, T. Wevers, Z. Kostrzewa-Rutkowska

arxiv:2001.07446 v1 · 2020-01-21 · 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{CHHQYSYDAJSCPGDZ2QZZQCGX77}

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.

Cited by

1 paper in Pith

The Radio Properties of Extreme Coronal Line Emitters: Constraints on the Sub-parsec Environment

Receipt and verification

First computed	2026-07-05T00:36:47.285346Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

11cf0c4b030264279879d4339808d7ffe415230d057a42d84dc8efe937f101ae

Aliases

arxiv: 2001.07446 · arxiv_version: 2001.07446v1 · doi: 10.48550/arxiv.2001.07446 · pith_short_12: CHHQYSYDAJSC · pith_short_16: CHHQYSYDAJSCPGDZ · pith_short_8: CHHQYSYD

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/CHHQYSYDAJSCPGDZ2QZZQCGX77 \
  | 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: 11cf0c4b030264279879d4339808d7ffe415230d057a42d84dc8efe937f101ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0cf70caff57a85ca7c3e5ae27877776cd48286ccc748857be9d0506c95fe6cb7",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-01-21T11:14:20Z",
    "title_canon_sha256": "f2f4ea9dcb627db5f4a81dd7bd4b141134dcdcaab3dbe388eade4e410d330b22"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.07446",
    "kind": "arxiv",
    "version": 1
  }
}