Pith Number

pith:H5KTU7VC

pith:2022:H5KTU7VCMMAFLYEKKLZHGERUX6

not attested not anchored not stored refs pending

Optical flux and spectral variability of BL Lacertae during its historical high outburst in 2020

Alok C. Gupta, Anton A. Strigachev, Hongyan Zhou, Junhui Fan, Lang Cui, Minfeng Gu, Nibedita Kalita, Peng Jiang, Rumen S. Bachev, Xiang Pan, Yosuke Mizuno, Yuhai Yuan

arxiv:2212.04181 v1 · 2022-12-08 · 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{H5KTU7VCMMAFLYEKKLZHGERUX6}

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	2026-07-05T05:39:27.386913Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f553a7ea2630055e08a52f2731234bfa389f972465456b39887cc1efcc73112

Aliases

arxiv: 2212.04181 · arxiv_version: 2212.04181v1 · doi: 10.48550/arxiv.2212.04181 · pith_short_12: H5KTU7VCMMAF · pith_short_16: H5KTU7VCMMAFLYEK · pith_short_8: H5KTU7VC

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/H5KTU7VCMMAFLYEKKLZHGERUX6 \
  | 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: 3f553a7ea2630055e08a52f2731234bfa389f972465456b39887cc1efcc73112

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed4a33c38258e77d93637d392347ee456b115d4767645e87b45750b4a6d194fd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2022-12-08T10:36:16Z",
    "title_canon_sha256": "6d5419985f28c639400e966fbbaf292a7f49e300338176b29c41ac4e7831231b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2212.04181",
    "kind": "arxiv",
    "version": 1
  }
}