Pith Number

pith:ISBQ7B7V

pith:2018:ISBQ7B7VSSCFK6JDAYIMDPZTSX

not attested not anchored not stored refs pending

The spectral and environment properties of $z\sim2.0-2.5$ quasar pairs

Elisabeta Lusso (Durham-CEA), Jason X. Prochaska (UC Santa Cruz), John M. O'Meara (Saint Michael's College), Joseph F. Hennawi (UCSB/MPIA), Marcel Neeleman (UCLA/MPIA), Marc Rafelski (STSI), Michele Fumagalli (Durham-CEA/ICC), Tom Theuns (Durham-ICC)

arxiv:1805.03206 v2 · 2018-05-08 · 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{ISBQ7B7VSSCFK6JDAYIMDPZTSX}

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	2026-05-18T00:12:16.930944Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44830f87f594845579230610c1bf3395e3943def9911534d564748e9069b74e4

Aliases

arxiv: 1805.03206 · arxiv_version: 1805.03206v2 · doi: 10.48550/arxiv.1805.03206 · pith_short_12: ISBQ7B7VSSCF · pith_short_16: ISBQ7B7VSSCFK6JD · pith_short_8: ISBQ7B7V

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/ISBQ7B7VSSCFK6JDAYIMDPZTSX \
  | 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: 44830f87f594845579230610c1bf3395e3943def9911534d564748e9069b74e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ae049c4e01e8c1f47099b3585a17fa72d925daa43d17f88b87557fd0f3b349e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-05-08T18:00:01Z",
    "title_canon_sha256": "60e004e24e073f8a623e983dc1a2a66e7222bda58e5048ea82f75d2d6d16f65f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.03206",
    "kind": "arxiv",
    "version": 2
  }
}