Pith Number

pith:4XPIYSCF

pith:2013:4XPIYSCFZHUAWX3N27YBGE2XFO

not attested not anchored not stored refs pending

COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses XIV. Time delay of the doubly lensed quasar SDSS J1001+5027

C. S. Stalin, E. Eulaers, F. Courbin, G. Meylan, H. Van Winckel, I. Asfandiyarov, M. Tewes, P. Magain, Sh. Ehgamberdiev, S. Rathna Kumar, T. P. Prabhu

arxiv:1306.5105 v2 · 2013-06-21 · 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{4XPIYSCFZHUAWX3N27YBGE2XFO}

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	2026-05-18T03:14:49.675908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5de8c4845c9e80b5f6dd7f01313572ba41ba1cf08c306575d878fb6905f70e6

Aliases

arxiv: 1306.5105 · arxiv_version: 1306.5105v2 · doi: 10.48550/arxiv.1306.5105 · pith_short_12: 4XPIYSCFZHUA · pith_short_16: 4XPIYSCFZHUAWX3N · pith_short_8: 4XPIYSCF

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/4XPIYSCFZHUAWX3N27YBGE2XFO \
  | 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: e5de8c4845c9e80b5f6dd7f01313572ba41ba1cf08c306575d878fb6905f70e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e10540f24287ecffcdb3c212758888f67df51428c11159696fa6bda1e0da28de",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-06-21T11:30:22Z",
    "title_canon_sha256": "29830636202a8a0952660095496ace68c722c5b58e7b10f0f10e0234a8b8e07d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.5105",
    "kind": "arxiv",
    "version": 2
  }
}