Pith Number

pith:R3LUPFGX

pith:2018:R3LUPFGX3ODBYQQDNWGRY7MQVK

not attested not anchored not stored refs pending

The Infrared Emission and Opening Angle of the Torus in Quasars

Jinyi Shangguan, Luis C. Ho, Ming-Yang Zhuang

arxiv:1806.03783 v1 · 2018-06-11 · astro-ph.GA · 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{R3LUPFGX3ODBYQQDNWGRY7MQVK}

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	2026-05-18T00:08:41.155198Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ed74794d7db861c42036d8d1c7d90aa98e2474899f0626e0cc8ff1c6d94ad17

Aliases

arxiv: 1806.03783 · arxiv_version: 1806.03783v1 · doi: 10.48550/arxiv.1806.03783 · pith_short_12: R3LUPFGX3ODB · pith_short_16: R3LUPFGX3ODBYQQD · pith_short_8: R3LUPFGX

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/R3LUPFGX3ODBYQQDNWGRY7MQVK \
  | 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: 8ed74794d7db861c42036d8d1c7d90aa98e2474899f0626e0cc8ff1c6d94ad17

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8cb29afcfe321d30d4e2abed7f4e91260ba5902b3084720519339eee3ea8a34d",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-06-11T03:01:37Z",
    "title_canon_sha256": "f9c40e721b29af8bda8bf10c649c465a83d1921b4cdb94ac10820e9e95f8937a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.03783",
    "kind": "arxiv",
    "version": 1
  }
}