Pith Number

pith:XRRQQQZL

pith:2009:XRRQQQZLCYHLVDNSQFQPZYPVK5

not attested not anchored not stored refs pending

Weak Microlensing

Hans Martin Schmid, Jonathan Coles, Prasenjit Saha

arxiv:0912.0515 v1 · 2009-12-02 · astro-ph.SR · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XRRQQQZLCYHLVDNSQFQPZYPVK5}

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	2026-05-18T02:10:34.480744Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc6308432b160eba8db28160fce1f55771bd0310e4b09cdb52b8252518dc69bf

Aliases

arxiv: 0912.0515 · arxiv_version: 0912.0515v1 · doi: 10.48550/arxiv.0912.0515 · pith_short_12: XRRQQQZLCYHL · pith_short_16: XRRQQQZLCYHLVDNS · pith_short_8: XRRQQQZL

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/XRRQQQZLCYHLVDNSQFQPZYPVK5 \
  | 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: bc6308432b160eba8db28160fce1f55771bd0310e4b09cdb52b8252518dc69bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c40d3a4257f2e5fe47a8e67fbf65fabee6ad2ec7dbf89d2c401ff31b503acc5b",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-12-02T21:00:16Z",
    "title_canon_sha256": "6208cae73360c966ad0bafdc1d583c8518751e98cf01756f1d6adf7156fd418f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.0515",
    "kind": "arxiv",
    "version": 1
  }
}