Pith Number

pith:DHVCRDGH

pith:2018:DHVCRDGH2KW47GK66XMTJFCRZC

not attested not anchored not stored refs pending

Constraining Sub-Parsec Binary Supermassive Black Holes in Quasars with Multi-Epoch Spectroscopy. III. Candidates from Continued Radial Velocity Tests

Abraham Loeb (Harvard), Hengxiao Guo (Illinois), J. X. Prochaska (UCSC), TalaWanda Monroe (STScI), Xin Liu (Illinois), Yue Shen (Illinois)

arxiv:1809.04610 v2 · 2018-09-12 · 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{DHVCRDGH2KW47GK66XMTJFCRZC}

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	2026-07-05T00:04:55.573424Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19ea288cc7d2adcf995ef5d9349451c8acc6daad1b07220845c676335e23b125

Aliases

arxiv: 1809.04610 · arxiv_version: 1809.04610v2 · doi: 10.48550/arxiv.1809.04610 · pith_short_12: DHVCRDGH2KW4 · pith_short_16: DHVCRDGH2KW47GK6 · pith_short_8: DHVCRDGH

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/DHVCRDGH2KW47GK66XMTJFCRZC \
  | 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: 19ea288cc7d2adcf995ef5d9349451c8acc6daad1b07220845c676335e23b125

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5af5686550677f2f7f9a00c6e36df5e407d046b5ebd548e4a7e3a25b3cf79256",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-09-12T18:00:17Z",
    "title_canon_sha256": "dcca7fe79cc08276999dbeee2a322a53784f58fd107b5076511225606d43e18b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.04610",
    "kind": "arxiv",
    "version": 2
  }
}