Pith Number

pith:D7TNXRFE

pith:2014:D7TNXRFEVV2M5ZINDZBQ44FASP

not attested not anchored not stored refs pending

The environment of low redshift quasar pairs

Aldo Treves, Angela Sandrinelli, Emanuele Paolo Farina, Michela Uslenghi, Renato Falomo

arxiv:1407.7875 v1 · 2014-07-29 · 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{D7TNXRFEVV2M5ZINDZBQ44FASP}

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	2026-05-18T01:42:28.595940Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1fe6dbc4a4ad74cee50d1e430e70a093f79c53ddeaf6a465952eae4b414cf61b

Aliases

arxiv: 1407.7875 · arxiv_version: 1407.7875v1 · doi: 10.48550/arxiv.1407.7875 · pith_short_12: D7TNXRFEVV2M · pith_short_16: D7TNXRFEVV2M5ZIN · pith_short_8: D7TNXRFE

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/D7TNXRFEVV2M5ZINDZBQ44FASP \
  | 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: 1fe6dbc4a4ad74cee50d1e430e70a093f79c53ddeaf6a465952eae4b414cf61b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1ad1a5e22c5578cd760619a49dae791f4b450d6cbb5b5986264088604dca284",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-07-29T20:18:04Z",
    "title_canon_sha256": "1e8b9e2c6f57a13332f93de7f1e07f05a1df912d4e5db6ad160802e67ab65437"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.7875",
    "kind": "arxiv",
    "version": 1
  }
}