Pith Number

pith:NT7HWKX3

pith:2014:NT7HWKX3HMTNXY22WQG36EYZ65

not attested not anchored not stored refs pending

Intranight Optical Variability of Radio-Quiet Weak Emission Line Quasars-II

Gopal-Krishna (IUCAA), Hum Chand (ARIES), Parveen Kumar (ARIES)

arxiv:1403.7440 v1 · 2014-03-28 · astro-ph.HE · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NT7HWKX3HMTNXY22WQG36EYZ65}

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	2026-05-18T01:43:44.289483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6cfe7b2afb3b26dbe35ab40dbf1319f779aff9b9ebee09349b72baaad179e705

Aliases

arxiv: 1403.7440 · arxiv_version: 1403.7440v1 · doi: 10.48550/arxiv.1403.7440 · pith_short_12: NT7HWKX3HMTN · pith_short_16: NT7HWKX3HMTNXY22 · pith_short_8: NT7HWKX3

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/NT7HWKX3HMTNXY22WQG36EYZ65 \
  | 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: 6cfe7b2afb3b26dbe35ab40dbf1319f779aff9b9ebee09349b72baaad179e705

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12436ab9669ba88e874f0bf86e9a3301c5cfd2e7f77809dbc9b3b41aa6abfe65",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-03-28T16:31:22Z",
    "title_canon_sha256": "b1fc10910544d5bd3dbd2fb986a6ea07b4c640d8b648ec470ea7c0aa7cce30e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.7440",
    "kind": "arxiv",
    "version": 1
  }
}