Pith Number

pith:VQ27LQSZ

pith:2014:VQ27LQSZYOCNWZ5Z4SASR2ZSLX

not attested not anchored not stored refs pending

An Unobscured type II quasar candidate: SDSS J012032.19-005501.9

H. Y. Zhou, J. H. Boisvert, S. Komossa, W. J. Liu, W. Yuan, Y. L. Ai, Y. Li

arxiv:1412.2776 v1 · 2014-12-08 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VQ27LQSZYOCNWZ5Z4SASR2ZSLX}

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	2026-05-18T01:41:20.666640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac35f5c259c384db67b9e48128eb325dd806c9e63246edac27d068ee4b384032

Aliases

arxiv: 1412.2776 · arxiv_version: 1412.2776v1 · doi: 10.48550/arxiv.1412.2776 · pith_short_12: VQ27LQSZYOCN · pith_short_16: VQ27LQSZYOCNWZ5Z · pith_short_8: VQ27LQSZ

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/VQ27LQSZYOCNWZ5Z4SASR2ZSLX \
  | 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: ac35f5c259c384db67b9e48128eb325dd806c9e63246edac27d068ee4b384032

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba6de4bfd4f8a65cc62a5f9c40b3e15290127d5c91cd657c4fd9d8a35196680e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-12-08T21:16:21Z",
    "title_canon_sha256": "e6e69d08603561c2cbf45ea39b38a6124214667254b1d208f90d635a7c616fd9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.2776",
    "kind": "arxiv",
    "version": 1
  }
}