Pith Number

pith:QCRZXAEC

pith:2026:QCRZXAECKY4VY5QU2FYT2ZTPXB

not attested not anchored not stored refs pending

Compiling the largest multiwavelength database of known changing-look AGN: Prospects in the Rubin era

Mariangella Camus (PUCV), Swayamtrupta Panda (NOIRLab)

arxiv:2607.25839 v1 · 2026-07-28 · 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{QCRZXAECKY4VY5QU2FYT2ZTPXB}

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	2026-07-29T01:26:05.821003Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80a39b808256395c7614d1713d666fb87bb3c5e5fea8821ab2aeea68392a6227

Aliases

arxiv: 2607.25839 · arxiv_version: 2607.25839v1 · doi: 10.48550/arxiv.2607.25839 · pith_short_12: QCRZXAECKY4V · pith_short_16: QCRZXAECKY4VY5QU · pith_short_8: QCRZXAEC

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/QCRZXAECKY4VY5QU2FYT2ZTPXB \
  | 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: 80a39b808256395c7614d1713d666fb87bb3c5e5fea8821ab2aeea68392a6227

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e277698063f6192d6a735cfc4c80630de7e39f214b513071c28084982bbd75e",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-07-28T15:17:11Z",
    "title_canon_sha256": "2f8c12b9af0d9075e187b29fcc6c922eca39e3a6ac9e03f9a67a3572457e5e26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.25839",
    "kind": "arxiv",
    "version": 1
  }
}