Pith Number

pith:2OWXJCEN

pith:2017:2OWXJCENS5X5I44JJVMVVSH73P

not attested not anchored not stored refs pending

Milliarcsecond compact structure in radio quasars and the geometry of the universe

Jingzhao Qi, Marek Biesiada, Shuo Cao, Tengpeng Xu, Xiaogang Zheng, Yu Pan, Zong-Hong Zhu

arxiv:1708.08608 v2 · 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{2OWXJCENS5X5I44JJVMVVSH73P}

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	2026-05-17T23:56:34.439619Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3ad74888d976fd473894d595ac8ffdbd00b94ad140f78f848b8ac1684e20e86

Aliases

arxiv: 1708.08608 · arxiv_version: 1708.08608v2 · doi: 10.48550/arxiv.1708.08608 · pith_short_12: 2OWXJCENS5X5 · pith_short_16: 2OWXJCENS5X5I44J · pith_short_8: 2OWXJCEN

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/2OWXJCENS5X5I44JJVMVVSH73P \
  | 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: d3ad74888d976fd473894d595ac8ffdbd00b94ad140f78f848b8ac1684e20e86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d9b906c433974f01df357a04d551b34871c2a01eefa7923ef5557042d1bd374",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2017-08-29T07:06:03Z",
    "title_canon_sha256": "9780c2b28296b34ad65afd9d5b2c39d1be4792cfeba4866d5639359f042fdeb6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.08608",
    "kind": "arxiv",
    "version": 2
  }
}