Pith Number

pith:BYQYPIR4

pith:2009:BYQYPIR4WWSUNY34ZV5VLIQXTK

not attested not anchored not stored refs pending

Multiwavelength Observations of Markarian 421 in 2005 - 2006

A. Cannon, A. Cesarini, A. C. Sadun, A. D. Falcone, A. Konopelko, A. Lahteenmaki, A. W. Smith, B. Jordan, B. Zitzer, D. A. Williams, D. Barnaby, D. Gall, D. Hanna, D. Horan, D. Steele, E. Hays, F., G. Gyuk, G. H. Gillanders, G. H. Sembroski, H. A. Krimm, H. D. Aller, H. J. Rose, H. Krawczynski, J. A. Toner, J. F. Le Campion, J. Grube, J. H. Buckley, J. Kildea, J. Maune, J. Niemiec, J. P. Dumm, J. P. Finley, J. Quinn, J. S. Perkins, K. L. Byrum, K. Lee, L. Ciupik, L. F. Fortson, M. Baker, M. D. Wood, M. F. Aller, M. J. Lang, M. Kertzman, M. Pohl, M. T. Carini, M. Tornikoski, M. Turunen, N. E. Fields, O. Celik, O. M. Kurtanidze, P. Charlot, P. Cogan, P. Fortin, P. Moriarty, P. T. Reynolds, R. A. Ong, R. J. White, R. Walters, S. J. Fegan, S. M. Bradbury, S. P. Swordy, S. P. Wakely, S. Smith, T. C. Weekes, T. Hovatta, T. Montaruli, T. Nagai, V. A. Acciari, V. Bugaev, V. V. Vassiliev, Y. A. Kovalev, Y. C. K. Chow, Y. Y. Kovalev

arxiv:0901.1225 v1 · 2009-01-09 · 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{BYQYPIR4WWSUNY34ZV5VLIQXTK}

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	2026-05-18T04:29:24.007840Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e2187a23cb5a546e37ccd7b55a2179ab6e586d1bd63c492fb0bfb31d03cb926

Aliases

arxiv: 0901.1225 · arxiv_version: 0901.1225v1 · doi: 10.48550/arxiv.0901.1225 · pith_short_12: BYQYPIR4WWSU · pith_short_16: BYQYPIR4WWSUNY34 · pith_short_8: BYQYPIR4

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/BYQYPIR4WWSUNY34ZV5VLIQXTK \
  | 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: 0e2187a23cb5a546e37ccd7b55a2179ab6e586d1bd63c492fb0bfb31d03cb926

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3ec8a01b31eeff46da058995c7115877e0009ea4fec5b53e41090b95fdef2f6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-01-09T11:42:57Z",
    "title_canon_sha256": "388e34c7e0a49c88dfd7d9bade6cd2c75023baf7e83ec5cb8340463d39665865"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.1225",
    "kind": "arxiv",
    "version": 1
  }
}