Pith Number

pith:OS4YJAUI

pith:2020:OS4YJAUIBNP4WES5D5MG4NZESF

not attested not anchored not stored refs pending

High-resolution imaging follow-up of doubly imaged quasars

Adriano Agnello, Anowar J. Shajib, Christopher D. Fassnacht, Eden Molina, Louis Abramson, Lutz Wisotzki, Paul L. Schechter, Peter R. Williams, Simon Birrer, Takahiro Morishita, Tommaso Treu

arxiv:2011.01971 v2 · 2020-11-03 · 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{OS4YJAUIBNP4WES5D5MG4NZESF}

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	2026-07-05T02:44:04.038101Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74b98482880b5fcb125d1f586e37249150a45d3f8721b2ce04db44cf6fc600d9

Aliases

arxiv: 2011.01971 · arxiv_version: 2011.01971v2 · doi: 10.48550/arxiv.2011.01971 · pith_short_12: OS4YJAUIBNP4 · pith_short_16: OS4YJAUIBNP4WES5 · pith_short_8: OS4YJAUI

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/OS4YJAUIBNP4WES5D5MG4NZESF \
  | 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: 74b98482880b5fcb125d1f586e37249150a45d3f8721b2ce04db44cf6fc600d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f1747f7820c20ff98f4d53855067cff8f7fae26f822c8e28afcbff2e711fbed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-11-03T19:25:16Z",
    "title_canon_sha256": "83a4b23e7cc59edeb547cea3c743f7c32ced7dbcab80e1c0ba83d71e5a7988f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.01971",
    "kind": "arxiv",
    "version": 2
  }
}