Pith Number

pith:L24M6DTK

pith:2025:L24M6DTK25FRPZDVUB43RRVYTO

not attested not anchored not stored refs pending

Spectral State Switching in Mrk 421: Results from the AstroSat LAXPC/SXT Observations

Naseer Iqbal, Ranjeev Misra, Sikandar Akbar, Zahir Shah

arxiv:2512.21885 v2 · 2025-12-26 · 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{L24M6DTK25FRPZDVUB43RRVYTO}

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	2026-05-29T01:05:00.517434Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5eb8cf0e6ad74b17e475a079b8c6b89b8306724a6102b59bf64e348bc41eee06

Aliases

arxiv: 2512.21885 · arxiv_version: 2512.21885v2 · doi: 10.48550/arxiv.2512.21885 · pith_short_12: L24M6DTK25FR · pith_short_16: L24M6DTK25FRPZDV · pith_short_8: L24M6DTK

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/L24M6DTK25FRPZDVUB43RRVYTO \
  | 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: 5eb8cf0e6ad74b17e475a079b8c6b89b8306724a6102b59bf64e348bc41eee06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b712052d197aede6ffd2b5eaedee0435e865183d1bfdca10520b67c8fb0417a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2025-12-26T06:15:51Z",
    "title_canon_sha256": "263894ff21a8242ba95c99d87a3921bbfbcfc5d84dd0889c05ba833402c8bb93"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2512.21885",
    "kind": "arxiv",
    "version": 2
  }
}