Pith Number

pith:VXDEMKXE

pith:1999:VXDEMKXEHY72MTRE6DZNWJ36DT

not attested not anchored not stored refs pending

TeV gamma-ray observations of three X-ray selected BL Lacs

A. Kawachi, G. J. Thornton, G. P. Rowell, H. Muraishi, J. Holder, J. R. Patterson, K. Nishijima, K. Sakurazawa, M. D. Roberts, M. Mori, P. G. Edwards, P. McGee, R. Susukita, S. A. Dazeley, S. Ogio, S. Yanagita, T. Hara, T. Kifune, T. Naito, T. Osaki, T. Sako, T. Tamura, T. Tanimori, T. Yoshida, T. Yoshikoshi, Y. Matsubara, Y. Mizumoto, Y. Muraki

arxiv:astro-ph/9902008 v1 · 1999-02-01 · 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{VXDEMKXEHY72MTRE6DZNWJ36DT}

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	2026-05-18T01:07:36.634383Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

adc6462ae43e3fa64e24f0f2db277e1cd1f9936ac707708244a1abd3eca75e9c

Aliases

arxiv: astro-ph/9902008 · arxiv_version: astro-ph/9902008v1 · doi: 10.48550/arxiv.astro-ph/9902008 · pith_short_12: VXDEMKXEHY72 · pith_short_16: VXDEMKXEHY72MTRE · pith_short_8: VXDEMKXE

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/VXDEMKXEHY72MTRE6DZNWJ36DT \
  | 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: adc6462ae43e3fa64e24f0f2db277e1cd1f9936ac707708244a1abd3eca75e9c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a9a9df1ae53fdf7087d59cf49dec26471fb97a0fe698c410fb86771f2404abd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-02-01T03:01:17Z",
    "title_canon_sha256": "cf8598918dc74720eec13d66e2297ffea763ca53c3418392ae775f922855614b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9902008",
    "kind": "arxiv",
    "version": 1
  }
}