Pith Number

pith:QIRAC37R

pith:2017:QIRAC37RCBQMIBSDT5MITBCEVV

not attested not anchored not stored refs pending

Ultra-compact structure in intermediate-luminosity radio quasars: building a sample of standard cosmological rulers and improving the dark energy constraints up to $z\sim 3$

Jingzhao Qi, Marek Biesiada, Shuo Cao, Xiaogang Zheng, Yun Chen, Zong-Hong Zhu

arxiv:1708.08635 v1 · 2017-08-29 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QIRAC37RCBQMIBSDT5MITBCEVV}

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	2026-05-18T00:34:04.487895Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8222016ff11060c406439f58898444ad65227d7ab4e06c77e0fbc60f5fcae213

Aliases

arxiv: 1708.08635 · arxiv_version: 1708.08635v1 · doi: 10.48550/arxiv.1708.08635 · pith_short_12: QIRAC37RCBQM · pith_short_16: QIRAC37RCBQMIBSD · pith_short_8: QIRAC37R

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/QIRAC37RCBQMIBSDT5MITBCEVV \
  | 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: 8222016ff11060c406439f58898444ad65227d7ab4e06c77e0fbc60f5fcae213

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53bb96d90885534ada778d21bd3fcfcf1f7cd237c4fa508d1ad40e2889452ff5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2017-08-29T08:25:59Z",
    "title_canon_sha256": "31efa20323e91e315a04250e4ca3eb8f9ef87d9a69f7130b880a4f4c037f1a02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.08635",
    "kind": "arxiv",
    "version": 1
  }
}