Pith Number

pith:I3PQG35E

pith:2023:I3PQG35ELZ5GMZDZ42MMAHV7FA

not attested not anchored not stored refs pending

Discovering strongly lensed quasar candidates with catalogue-based methods from DESI Legacy Surveys

Hu Zou, Nan Li, Rui Li, Simon Dye, Xiaoyue Cao, Zizhao He

arxiv:2301.11080 v1 · 2023-01-26 · 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{I3PQG35ELZ5GMZDZ42MMAHV7FA}

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	2026-07-05T06:00:07.164164Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46df036fa45e7a666479e698c01ebf283d7be840b27aa880a2b7f762dd03c77e

Aliases

arxiv: 2301.11080 · arxiv_version: 2301.11080v1 · doi: 10.48550/arxiv.2301.11080 · pith_short_12: I3PQG35ELZ5G · pith_short_16: I3PQG35ELZ5GMZDZ · pith_short_8: I3PQG35E

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/I3PQG35ELZ5GMZDZ42MMAHV7FA \
  | 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: 46df036fa45e7a666479e698c01ebf283d7be840b27aa880a2b7f762dd03c77e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b13d033543d96f4e0d65f7f69a07658902ad14a2bf5d9b40f078ef0c5d385b0",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2023-01-26T13:18:14Z",
    "title_canon_sha256": "f2db357f8aa1ca4e345b832324300d5c9b28ad3af04ccd801a87dd10538c7040"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2301.11080",
    "kind": "arxiv",
    "version": 1
  }
}