Pith Number

pith:G4IZK4NZ

pith:2021:G4IZK4NZ5T5WQLU2Q5DPN6AZKV

not attested not anchored not stored refs pending

Constraining quasar structure using high-frequency microlensing variations and continuum reverberation

D. Sluse, E. Paic, F. Courbin, G.Vernardos, J.H. Chan, M. Millon, V. Bonvin

arxiv:2110.05500 v1 · 2021-10-11 · 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{G4IZK4NZ5T5WQLU2Q5DPN6AZKV}

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	2026-07-05T04:04:21.713024Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37119571b9ecfb682e9a8746f6f8195566d3363a4f21f735ceee1ceaa7d970ab

Aliases

arxiv: 2110.05500 · arxiv_version: 2110.05500v1 · doi: 10.48550/arxiv.2110.05500 · pith_short_12: G4IZK4NZ5T5W · pith_short_16: G4IZK4NZ5T5WQLU2 · pith_short_8: G4IZK4NZ

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/G4IZK4NZ5T5WQLU2Q5DPN6AZKV \
  | 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: 37119571b9ecfb682e9a8746f6f8195566d3363a4f21f735ceee1ceaa7d970ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5df758b8307680c75404459e3e17961e8159a344afa816ed371d804dd3daec83",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-10-11T18:00:02Z",
    "title_canon_sha256": "69814e610b0c5b7ecc3c6d6135e8e76eb5bd8c580a89aa5081d9fcd05911f633"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.05500",
    "kind": "arxiv",
    "version": 1
  }
}