Pith Number

pith:EJFF2PKI

pith:2010:EJFF2PKIKJ5M27APKBR2AOTXIP

not attested not anchored not stored refs pending

A very bright i=16.44 quasar in the `redshift desert' discovered by LAMOST

Ali Luo, Hai Wang, Haotong Zhang, Hongliang Yan, Hong Wu, Jianjun Chen, Jijun Ni, Juanjuan Ren, Qishuai Lu, Shiwei Sun, Shiyin Shen, Wenwen Zuo, Xue-Bing Wu, Xu Kong, Yeping Li, Yongheng Zhao, Yong Zhang, You Wang, Zhaoyu Chen, Zhendong Jia, Zhongrui Bai

arxiv:1005.5499 v1 · 2010-05-30 · 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{EJFF2PKIKJ5M27APKBR2AOTXIP}

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	2026-05-18T02:07:06.476027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

224a5d3d48527acd7c0f5063a03a7743e15d1f8491146fa6f6ad3fad3ffa1647

Aliases

arxiv: 1005.5499 · arxiv_version: 1005.5499v1 · doi: 10.48550/arxiv.1005.5499 · pith_short_12: EJFF2PKIKJ5M · pith_short_16: EJFF2PKIKJ5M27AP · pith_short_8: EJFF2PKI

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/EJFF2PKIKJ5M27APKBR2AOTXIP \
  | 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: 224a5d3d48527acd7c0f5063a03a7743e15d1f8491146fa6f6ad3fad3ffa1647

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b1cb111f03f8994a7f8105b19137d72e0854bfd0b61d300da344625e41b1540",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-05-30T03:56:10Z",
    "title_canon_sha256": "34a7fe4e6a01e0f45762154384fe4cd4125ea09f04cda7e0a415b924c9b71bf3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.5499",
    "kind": "arxiv",
    "version": 1
  }
}