Pith Number

pith:ZXZPIQ25

pith:1999:ZXZPIQ253CXHJBXJYZAUDEVOFA

not attested not anchored not stored refs pending

Observations of the Crab Nebula, Mkn 501 and Mkn 421 using the TACTIC Imaging Element

A. Goyal, A.K. Razdan, A.K. Tickoo, C.K. Bhat, C.L. Bhat, C.L. Kaul, D.K. Koul, H.C. Goyal, I.K. Kaul, K.K. Yadav, M.K. Koul, M. Kothari, M.L. Sapru, N. Bhatt, N.K. Agarwal, N. Satyabhama, N. Venugopal, R.C. Rannot, R.K. Kaul, R. Koul, S. Bhattacharyya, S.K. Kaul, S.R. Kaul, S. Sahayanathan, V.K. Dhar

arxiv:astro-ph/9906128 v1 · 1999-06-08 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZXZPIQ253CXHJBXJYZAUDEVOFA}

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	2026-07-04T14:16:46.574726Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdf2f4435dd8ae7486e9c6414192ae280f5390d493b2987b789a1ab720de3b77

Aliases

arxiv: astro-ph/9906128 · arxiv_version: astro-ph/9906128v1 · doi: 10.48550/arxiv.astro-ph/9906128 · pith_short_12: ZXZPIQ253CXH · pith_short_16: ZXZPIQ253CXHJBXJ · pith_short_8: ZXZPIQ25

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/ZXZPIQ253CXHJBXJYZAUDEVOFA \
  | 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: cdf2f4435dd8ae7486e9c6414192ae280f5390d493b2987b789a1ab720de3b77

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "760abfbae026783c93568e435ab1ca2a27512e9a181ebc871f854ab695c98c5d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-06-08T08:33:02Z",
    "title_canon_sha256": "f036ec6ce3d0a8c0ce1cb7fef28cd40e644bfbbfc38f1a68c9529dd4f050a609"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9906128",
    "kind": "arxiv",
    "version": 1
  }
}