Pith Number

pith:FZRUW4OU

pith:2000:FZRUW4OUU325PLVHI7DYXGBSBW

not attested not anchored not stored refs pending

The MACHO project: Microlensing Optical Depth towards the Galactic Bulge from Difference Image Analysis

A. B. Tomaney, A. C. Becker, A. J. Drake, B. A. Peterson, C. Alcock, C. A. Nelson, C. W. Stubbs, D. L. Welch, D. Minniti, D. P. Bennett, D. R. Alves, K. C. Freeman, K. Griest, K. H. Cook, M. Geha, M. J. Lehner, M. R. Pratt, P. J. Quinn, P. Popowski, R. A. Allsman, S. L. Marshall, T. S. Axelrod, T. Vandehei, W. Sutherland

arxiv:astro-ph/0002510 v2 · 2000-02-28 · 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{FZRUW4OUU325PLVHI7DYXGBSBW}

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	2026-07-04T16:16:07.538568Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e634b71d4a6f5d7aea747c78b98320d9a7d4828d5fd6227a5b88a24a3237086

Aliases

arxiv: astro-ph/0002510 · arxiv_version: astro-ph/0002510v2 · doi: 10.48550/arxiv.astro-ph/0002510 · pith_short_12: FZRUW4OUU325 · pith_short_16: FZRUW4OUU325PLVH · pith_short_8: FZRUW4OU

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/FZRUW4OUU325PLVHI7DYXGBSBW \
  | 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: 2e634b71d4a6f5d7aea747c78b98320d9a7d4828d5fd6227a5b88a24a3237086

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "209e097fac80f7ba8c6521f73dc80343a890e5451cb86994f803203fac174987",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-02-28T23:07:06Z",
    "title_canon_sha256": "3b033dc74950766dc6cf592e587dd2a83bb797c1d721707310ec65978d9c72d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0002510",
    "kind": "arxiv",
    "version": 2
  }
}