Pith Number

pith:KBFOK77R

pith:2023:KBFOK77RPTBS7ZUGAPRHLUBSWC

not attested not anchored not stored refs pending

Spectroscopy of QUBRICS quasar candidates: 1672 new redshifts and a Golden Sample for the Sandage Test of the Redshift Drift

Andrea Grazian, Andrea Trost, Carlos J.A.P. Martins, Catarina M. J. Marques, Fabio Fontanot, Francesco Guarneri, Giorgio Calderone, Guido Cupani, Konstantina Boutsia, Matteo Porru, Soumak Maitra, Stefano Cristiani, Valentina D'Odorico

arxiv:2304.00362 v1 · 2023-04-01 · astro-ph.CO · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KBFOK77RPTBS7ZUGAPRHLUBSWC}

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	2026-07-05T05:59:49.099354Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

504ae57ff17cc32fe68603e275d032b09f1681695fc1bc6d727cf781eb4bec84

Aliases

arxiv: 2304.00362 · arxiv_version: 2304.00362v1 · doi: 10.48550/arxiv.2304.00362 · pith_short_12: KBFOK77RPTBS · pith_short_16: KBFOK77RPTBS7ZUG · pith_short_8: KBFOK77R

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/KBFOK77RPTBS7ZUGAPRHLUBSWC \
  | 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: 504ae57ff17cc32fe68603e275d032b09f1681695fc1bc6d727cf781eb4bec84

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23986416b042e8b6943da521deb057c5955ecd738872ec0a3314f1270fb8cb16",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2023-04-01T17:44:08Z",
    "title_canon_sha256": "493c8432f8aff7394af4215395bb44dad4532c1aed3035bbfcbf5eaa70a0bb17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2304.00362",
    "kind": "arxiv",
    "version": 1
  }
}