Pith Number

pith:MFYLGXNB

pith:2018:MFYLGXNB7V4SZDMPCXKUR2MJSW

not attested not anchored not stored refs pending

X-ray Intraday Variability of the TeV Blazar Mrk 421 with {\it Chandra}

Alok C. Gupta, Ashwani Pandey, K. K. Yadav, Paul J. Wiita, S. N. Tiwari, V. Aggrawal, Zhongli Zhang

arxiv:1808.05158 v1 · 2018-08-15 · 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{MFYLGXNB7V4SZDMPCXKUR2MJSW}

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	2026-05-18T00:07:39.761866Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6170b35da1fd792c8d8f15d548e9899584997990887e0d9465df944972604a50

Aliases

arxiv: 1808.05158 · arxiv_version: 1808.05158v1 · doi: 10.48550/arxiv.1808.05158 · pith_short_12: MFYLGXNB7V4S · pith_short_16: MFYLGXNB7V4SZDMP · pith_short_8: MFYLGXNB

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/MFYLGXNB7V4SZDMPCXKUR2MJSW \
  | 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: 6170b35da1fd792c8d8f15d548e9899584997990887e0d9465df944972604a50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc6c5469f447c9e0f99fcc0cc8a54034028e4ce42ff55afa14fabd6e884de69c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-08-15T15:53:23Z",
    "title_canon_sha256": "95f3b1be2cac4871dff53027ecf81928c5d7bb8bd9e964a2c2af1f0906ee854b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.05158",
    "kind": "arxiv",
    "version": 1
  }
}