Pith Number

pith:QUZBYXZP

pith:2017:QUZBYXZPZYAHDSYQJV6SPMI5XH

not attested not anchored not stored refs pending

New observational constraints on $f(T)$ cosmology from radio quasars

Jing-Zhao Qi, Marek Biesiada, Shuo Cao, Xiaogang Zheng, Zong-Hong Zhu

arxiv:1708.08603 v1 · 2017-08-29 · 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{QUZBYXZPZYAHDSYQJV6SPMI5XH}

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	2026-05-18T00:36:27.278053Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85321c5f2fce0071cb104d7d27b11db9e56b0e97982bd789bbd3b551e300f1fb

Aliases

arxiv: 1708.08603 · arxiv_version: 1708.08603v1 · doi: 10.48550/arxiv.1708.08603 · pith_short_12: QUZBYXZPZYAH · pith_short_16: QUZBYXZPZYAHDSYQ · pith_short_8: QUZBYXZP

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/QUZBYXZPZYAHDSYQJV6SPMI5XH \
  | 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: 85321c5f2fce0071cb104d7d27b11db9e56b0e97982bd789bbd3b551e300f1fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d92e8c223406e8adbd59dc9950aed81e8bdbaf038fc20d7ab2b8e92705782a7",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2017-08-29T06:45:39Z",
    "title_canon_sha256": "7546763b0e3aac61d6c42b672dae934641219a2e15f83490f4b667848ac38eb5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.08603",
    "kind": "arxiv",
    "version": 1
  }
}