Pith Number

pith:JP2YQJBL

pith:2020:JP2YQJBLNUGF7L6OMVMGDAS6WE

not attested not anchored not stored refs pending

COSMOGRAIL XIX: Time delays in 18 strongly lensed quasars from 15 years of optical monitoring

A. Galan, A. H. M. J. Triaud, A. Wyttenbach, B. Chazelas, C. Lemon, D. Sluse, E. Paic, F. Courbin, G. Meylan, J. H. H. Chan, M. Lendl, M. Marmier, M. Millon, M. Tewes, O. Tihhonova, P. Magain, R. I. Anderson, R. Joseph, V. Bonvin

arxiv:2002.05736 v2 · 2020-02-13 · 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{JP2YQJBLNUGF7L6OMVMGDAS6WE}

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	2026-07-05T01:29:53.044687Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4bf588242b6d0c5fafce655861825eb1179e94e9304b54211eac6be48c5671e4

Aliases

arxiv: 2002.05736 · arxiv_version: 2002.05736v2 · doi: 10.48550/arxiv.2002.05736 · pith_short_12: JP2YQJBLNUGF · pith_short_16: JP2YQJBLNUGF7L6O · pith_short_8: JP2YQJBL

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/JP2YQJBLNUGF7L6OMVMGDAS6WE \
  | 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: 4bf588242b6d0c5fafce655861825eb1179e94e9304b54211eac6be48c5671e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20a543bd61f9cc175fbef52751e9caa8f49c3ddb0156d078b77a39fae0308b21",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2020-02-13T19:00:05Z",
    "title_canon_sha256": "32679dda88c855bfb59d1fa37592661f54e71d1582b8729add2621073ed8d3ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.05736",
    "kind": "arxiv",
    "version": 2
  }
}