Pith Number

pith:QNV2REJJ

pith:2012:QNV2REJJLMR2PAPLHJFHMRQ6AI

not attested not anchored not stored refs pending

Microlensing towards the Magellanic Clouds and M31: is the quest for MACHOs still open?

IIASS, Italy, Italy), S. Calchi Novati (Univ. Salerno

arxiv:1201.5262 v1 · 2012-01-25 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QNV2REJJLMR2PAPLHJFHMRQ6AI}

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	2026-05-18T01:58:42.112204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

836ba891295b23a781eb3a4a76461e0209c2f33bc2f2eb3bb9c6d3d029593522

Aliases

arxiv: 1201.5262 · arxiv_version: 1201.5262v1 · doi: 10.48550/arxiv.1201.5262 · pith_short_12: QNV2REJJLMR2 · pith_short_16: QNV2REJJLMR2PAPL · pith_short_8: QNV2REJJ

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/QNV2REJJLMR2PAPLHJFHMRQ6AI \
  | 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: 836ba891295b23a781eb3a4a76461e0209c2f33bc2f2eb3bb9c6d3d029593522

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7cb5c4cb8d3a7b05efdb9a00961a3ba2bb26699fef38cb195abbe8d0b9288a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-01-25T13:17:58Z",
    "title_canon_sha256": "ce4f07f5090c5928ebe162c7cb0f1dbd30d63768e6d893704865eb4c406ff7e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.5262",
    "kind": "arxiv",
    "version": 1
  }
}