Pith Number

pith:5CF5YTOJ

pith:2011:5CF5YTOJ7ATHECSLMZ63ROZJ55

not attested not anchored not stored refs pending

Towards the automatic estimation of gravitational lenses' time delays

A. Hirv, J. Pelt, N. Olspert

arxiv:1105.5991 v1 · 2011-05-30 · astro-ph.IM · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5CF5YTOJ7ATHECSLMZ63ROZJ55}

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	2026-05-18T04:21:01.139013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e88bdc4dc9f826720a4b667db8bb29ef7f5cd3154a13932a5aff62bbad109c01

Aliases

arxiv: 1105.5991 · arxiv_version: 1105.5991v1 · doi: 10.48550/arxiv.1105.5991 · pith_short_12: 5CF5YTOJ7ATH · pith_short_16: 5CF5YTOJ7ATHECSL · pith_short_8: 5CF5YTOJ

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/5CF5YTOJ7ATHECSLMZ63ROZJ55 \
  | 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: e88bdc4dc9f826720a4b667db8bb29ef7f5cd3154a13932a5aff62bbad109c01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e782a9683e8c943309938d9ce40000f3c611c38187fe30ebe4ec24eda7d52336",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-05-30T13:32:50Z",
    "title_canon_sha256": "ce9267bc33b79574afc89673899b4d7b6391554ad90fde1b392da70d622ff66a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.5991",
    "kind": "arxiv",
    "version": 1
  }
}