Pith Number

pith:5EV3IUUS

pith:2015:5EV3IUUSLF3IA25MGSHVO7X7LW

not attested not anchored not stored refs pending

A possible close supermassive black-hole binary in a quasar with optical periodicity

Andrew J. Drake, Ashish A. Mahabal, Ciro Donalek, Daniel Stern, Eilat Glikman, Eric Christensen, Matthew J. Graham, S. George Djorgovski, Steve Larson

arxiv:1501.01375 v1 · 2015-01-07 · astro-ph.GA · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5EV3IUUSLF3IA25MGSHVO7X7LW}

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.

Cited by

1 paper in Pith

Reaching diffraction-limited localization with coherent PTAs

Receipt and verification

First computed	2026-05-18T02:29:54.397361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e92bb452925976806bac348f577eff5d9729f273dce8e1e333a1773de5d0c7c1

Aliases

arxiv: 1501.01375 · arxiv_version: 1501.01375v1 · doi: 10.48550/arxiv.1501.01375 · pith_short_12: 5EV3IUUSLF3I · pith_short_16: 5EV3IUUSLF3IA25M · pith_short_8: 5EV3IUUS

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/5EV3IUUSLF3IA25MGSHVO7X7LW \
  | 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: e92bb452925976806bac348f577eff5d9729f273dce8e1e333a1773de5d0c7c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4d9827dbd71f615220e2b62079b572c68e9feb7b1e4a61eccc5e42a246fd80f",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-01-07T07:11:03Z",
    "title_canon_sha256": "3eed9830ff3e2859a5484e1bee0a13ebc272c879089ec753c8d538bccaa16350"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.01375",
    "kind": "arxiv",
    "version": 1
  }
}