Pith Number

pith:PIEJZWEG

pith:2014:PIEJZWEG5GJH723FWMFP6RGQSV

not attested not anchored not stored refs pending

Similarity of ionized gas nebulae around unobscured and obscured quasars

Guilin Liu (JHU), Jenny E. Greene (Princeton), Nadia L. Zakamska (JHU)

arxiv:1401.0536 v2 · 2014-01-02 · astro-ph.GA · astro-ph.CO · 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{PIEJZWEG5GJH723FWMFP6RGQSV}

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	2026-05-18T02:20:29.030622Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a089cd886e9927feb65b30aff44d0954e3fea97af642d972e550acc1844ef0c

Aliases

arxiv: 1401.0536 · arxiv_version: 1401.0536v2 · doi: 10.48550/arxiv.1401.0536 · pith_short_12: PIEJZWEG5GJH · pith_short_16: PIEJZWEG5GJH723F · pith_short_8: PIEJZWEG

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/PIEJZWEG5GJH723FWMFP6RGQSV \
  | 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: 7a089cd886e9927feb65b30aff44d0954e3fea97af642d972e550acc1844ef0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e87c3b9ba5189fd99c472ca6a08e21a7030ac0da9a7561a0b354df732c0eaaad",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-01-02T21:00:03Z",
    "title_canon_sha256": "134ae2c077b2493c1e86feb448acd53cdedfaef4e5e41c341569a80b6e9401c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.0536",
    "kind": "arxiv",
    "version": 2
  }
}