Pith Number

pith:7CYVAXDG

pith:2015:7CYVAXDGIAIONZDA3Y7ZPKYEIO

not attested not anchored not stored refs pending

Gravitational Microlensing Events as a Target for SETI project

Sohrab Rahvar

arxiv:1509.05504 v2 · 2015-09-18 · astro-ph.IM · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7CYVAXDGIAIONZDA3Y7ZPKYEIO}

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	2026-05-18T01:07:17.369071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8b1505c664010e6e460de3f97ab0443803076655ef3192b630ba32af18d9560

Aliases

arxiv: 1509.05504 · arxiv_version: 1509.05504v2 · doi: 10.48550/arxiv.1509.05504 · pith_short_12: 7CYVAXDGIAIO · pith_short_16: 7CYVAXDGIAIONZDA · pith_short_8: 7CYVAXDG

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/7CYVAXDGIAIONZDA3Y7ZPKYEIO \
  | 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: f8b1505c664010e6e460de3f97ab0443803076655ef3192b630ba32af18d9560

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e02c0d47bbe97b049242a811b00c152b7262d2c5645707e14811860b8798481f",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-09-18T04:48:06Z",
    "title_canon_sha256": "f921ce0c4aba683fb1b4b755154f0945c4136756f93ac49f719cf8042f148211"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.05504",
    "kind": "arxiv",
    "version": 2
  }
}