Pith Number

pith:QQW4ZDFV

pith:2010:QQW4ZDFVIW4PW3VJ7W4F25M6FU

not attested not anchored not stored refs pending

A doubled double hotspot in J0816+5003 and the logarithmic slope of the lensing potential

John Tonry, Katherine Blundell, Matt Jarvis, Nick Morgan, Paul Schechter, Steve Rawlings

arxiv:1008.3273 v1 · 2010-08-19 · astro-ph.CO · 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{QQW4ZDFVIW4PW3VJ7W4F25M6FU}

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	2026-05-18T02:05:46.653809Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

842dcc8cb545b8fb6ea9fdb85d759e2d1a9a0447103362232192c6178b4d14b0

Aliases

arxiv: 1008.3273 · arxiv_version: 1008.3273v1 · doi: 10.48550/arxiv.1008.3273 · pith_short_12: QQW4ZDFVIW4P · pith_short_16: QQW4ZDFVIW4PW3VJ · pith_short_8: QQW4ZDFV

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/QQW4ZDFVIW4PW3VJ7W4F25M6FU \
  | 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: 842dcc8cb545b8fb6ea9fdb85d759e2d1a9a0447103362232192c6178b4d14b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "671ff1bf5d58937edb12bb0c5f1df3313f0b9a0318182d926b450abdb6d8a0e4",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-08-19T11:05:31Z",
    "title_canon_sha256": "7bf99a987fa77aa8fcd048fba67264562451ab36ff901c014cca681a27592d47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.3273",
    "kind": "arxiv",
    "version": 1
  }
}