Pith Number

pith:7ZYNIFQ7

pith:2011:7ZYNIFQ7R7SFMHMNYZIJY4ASJC

not attested not anchored not stored refs pending

Binary microlensing event OGLE-2009-BLG-020 gives a verifiable mass, distance and orbit predictions

A. Allan, A. Cassan, A. Cole, A. Fukui, A. Gould, A. Korpela, A. Maury, A. Udalski, A. Williams, B.-G. Park, B. S. Gaudi, C. Han, Ch. Coutures, C. H. Ling, C. Mottram, C. R. Nelson, C. S. Botzler, C. Snodgrass, C.-U. Lee, D. Dominis Prester, D. Douchin, D. J. Sullivan, D. Kubas, D. L. DePoy, D. M. Bramich, D. Moorhouse, D. P. Bennett, D. Suzuki, F. Abe, F. Hayashi, F. Mallia, G. Bolt (the muFUN Collaboration), G. Pietrzynski, G. Thornley, I. Bond (and), I. Soszynski (the OGLE Collaboration), I. Steele, J. A. R. Caldwell, J. B. Hearnshaw, J.-B. Marquette, J. C. Yee, J. Donatowicz, J. Drummond, J. Greenhill, J. McCormick, J. Menzies, J.-P. Beaulieu, J. Skowron, J. Wambsganss, K. C. Sahu, K. Furusawa, K. H. Cook, K. Horne, K. Kamiya, K. Masuda, K. Nishimoto, K. Ohnishi, K. Ulaczyk, K. Wada, L. A. G. Monard, L. Skuljan, L.-W. Hung, L. Wyrzykowski, M. D. Albrow, M. Dominik, M. Freeman, M. K. Szymanski, M. Kubiak, M. Zub (the PLANET Collaboration), N. Clay, N. Kains, N. Miyake, N. Rattenbury, P. Browne, P. C. M. Yock (The MOA Collaboration), P. Fouque, P. J. Tristram, P. M. Kilmartin, R. A. Street, R. Martin, R. Poleski, R. W. Pogge, S. Brillant, S. Dieters, S. Fraser, S. Hosaka, S. Kozlowski, S. Makita, S. R. Kane, Subo Dong, T. Nagayama, To. Saito, T. Sumi, V. Batista, W. Allen, W. Lin, W. L. Sweatman, Y. C. Perrott, Y. Itow, Y. Matsubara, Y. Muraki, Y. Tsapras (the RoboNet Collaboration)

arxiv:1101.3312 v1 · 2011-01-17 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7ZYNIFQ7R7SFMHMNYZIJY4ASJC}

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	2026-05-18T02:03:38.982178Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe70d4161f8fe4561d8dc6509c701248a3852fde10cc4cc5046db15f092a2b86

Aliases

arxiv: 1101.3312 · arxiv_version: 1101.3312v1 · doi: 10.48550/arxiv.1101.3312 · pith_short_12: 7ZYNIFQ7R7SF · pith_short_16: 7ZYNIFQ7R7SFMHMN · pith_short_8: 7ZYNIFQ7

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/7ZYNIFQ7R7SFMHMNYZIJY4ASJC \
  | 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: fe70d4161f8fe4561d8dc6509c701248a3852fde10cc4cc5046db15f092a2b86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3854ca6dab92149a8ec88717d65f00e08d396758d5db7e015aff72d89d887bdb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-01-17T21:00:02Z",
    "title_canon_sha256": "a88682d58c482f071e0f484df5af4990d8d1c5753762eaf86a16a45c2c115f58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.3312",
    "kind": "arxiv",
    "version": 1
  }
}