Pith Number

pith:KE7GK6YS

pith:2025:KE7GK6YSLQB54WWSWC6E4XPFKC

not attested not anchored not stored refs pending

Discovery of 19 strongly-lensed quasars, dual and projected quasars in DESI-LS

Dongdong Shi, Guoliang Li, Limeng Deng, Nan Li, Qihang Chen, Rui Li, Yiping Shu, Zizhao He

arxiv:2501.08541 v1 · 2025-01-15 · astro-ph.GA · 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{KE7GK6YSLQB54WWSWC6E4XPFKC}

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	2026-07-05T10:28:32.442347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

513e657b125c03de5ad2b0bc4e5de550a1b8723dd10fa943813beecce8eaa63b

Aliases

arxiv: 2501.08541 · arxiv_version: 2501.08541v1 · doi: 10.48550/arxiv.2501.08541 · pith_short_12: KE7GK6YSLQB5 · pith_short_16: KE7GK6YSLQB54WWS · pith_short_8: KE7GK6YS

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/KE7GK6YSLQB54WWSWC6E4XPFKC \
  | 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: 513e657b125c03de5ad2b0bc4e5de550a1b8723dd10fa943813beecce8eaa63b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f4ced05275d2f6598b0cf5161fe219e96f4822fa3ca9a4ad0704cc835ead029",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-01-15T03:04:24Z",
    "title_canon_sha256": "97b0b4a56ec9f3a0f53d8f89178c17a3d3615bb49aa0cb1542fff873df6ba02f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.08541",
    "kind": "arxiv",
    "version": 1
  }
}