Pith Number

pith:K6LQ4OSX

pith:2016:K6LQ4OSXGMWMUYOYWU4XHWMF6O

not attested not anchored not stored refs pending

Extremely Red Quasars in BOSS

Ben Cook, Carolin Villforth, Donald P. Schneider, Fred Hamann, Gordon T. Richards, Hanna Herbst, Isabelle Paris, Jenny E. Greene, Kelly D. Denney, Michael A. Strauss, Nadia L. Zakamska, Nicholas Ross, Rachael M. Alexandroff, W. Niel Brandt

arxiv:1609.07241 v1 · 2016-09-23 · 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{K6LQ4OSXGMWMUYOYWU4XHWMF6O}

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	2026-05-18T00:55:41.289055Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57970e3a57332cca61d8b53973d985f3b0b131fac357e29acb3b8bd962e05927

Aliases

arxiv: 1609.07241 · arxiv_version: 1609.07241v1 · doi: 10.48550/arxiv.1609.07241 · pith_short_12: K6LQ4OSXGMWM · pith_short_16: K6LQ4OSXGMWMUYOY · pith_short_8: K6LQ4OSX

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/K6LQ4OSXGMWMUYOYWU4XHWMF6O \
  | 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: 57970e3a57332cca61d8b53973d985f3b0b131fac357e29acb3b8bd962e05927

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7dcc267afee0d413057dda76e40ec0d7b5b09e969a71a5facde1e8e6118c473",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-09-23T06:37:05Z",
    "title_canon_sha256": "a51bbe0eb9cb7e16337874c0e7cbef5cb8aff03bd8eaaec308e54121468a5629"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.07241",
    "kind": "arxiv",
    "version": 1
  }
}