Pith Number

pith:UEQOUYMN

pith:2017:UEQOUYMN5XKQEMIPX3FZJL5RUG

not attested not anchored not stored refs pending

Solving the puzzle of discrepant quasar variability on monthly time-scales implied by SDSS and CRTS data sets

(2) Harvard-Smithsonian Center for Astrophysics, (3) Center for Data-Driven Discovery, 4), (4) National Optical Astronomy Observatory, (5) Max Planck Institute for Astronomy, AZ 85719, Branimir Sesar (5) ((1) Department of Astronomy, CA 91125, California Institute of Technology, Cambridge, Chelsea L. MacLeod (2), D-69117 Heidelberg, Germany), K\"onigstuhl 17, Krzysztof Suberlak (1), MA 02138, Matthew Graham (3, Pasadena, Seattle, Tucson, University of Washington, USA, \v{Z}eljko Ivezi\'c (1), WA 98195

arxiv:1712.01848 v1 · 2017-12-05 · 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{UEQOUYMN5XKQEMIPX3FZJL5RUG}

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	2026-05-18T00:28:39.992123Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a120ea618dedd502310fbecb94afb1a189c16f2745d58aa3a3f1d05168ae02a4

Aliases

arxiv: 1712.01848 · arxiv_version: 1712.01848v1 · doi: 10.48550/arxiv.1712.01848 · pith_short_12: UEQOUYMN5XKQ · pith_short_16: UEQOUYMN5XKQEMIP · pith_short_8: UEQOUYMN

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/UEQOUYMN5XKQEMIPX3FZJL5RUG \
  | 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: a120ea618dedd502310fbecb94afb1a189c16f2745d58aa3a3f1d05168ae02a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89ded30abfc497ac21ae040bfd868e8f7537aca5e779fd65ae9fbed85d67f424",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-12-05T19:00:03Z",
    "title_canon_sha256": "7bb53d9be53e355db94217cdb784033c81d5db966e9e4dab10482996c1135c2f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.01848",
    "kind": "arxiv",
    "version": 1
  }
}