Pith Number

pith:DNQKWIOT

pith:2009:DNQKWIOTE5HRQWJAYTWXN5M36R

not attested not anchored not stored refs pending

Unusual optical quiescence of the classical BL Lac object PKS 0735+178 on intranight time scale

Arti Goyal, D. K. Sahu, G. C. Anupama, Gopal-Krishna, H. D. Aller, M. F. Aller, M. Karouzos, R. Sagar, S. Britzen

arxiv:0907.2285 v1 · 2009-07-14 · 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{DNQKWIOTE5HRQWJAYTWXN5M36R}

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	2026-05-18T02:13:03.337948Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b60ab21d3274f185920c4ed76f59bf44d4b2f2434ef07470ae8ef49e6c0f19e

Aliases

arxiv: 0907.2285 · arxiv_version: 0907.2285v1 · doi: 10.48550/arxiv.0907.2285 · pith_short_12: DNQKWIOTE5HR · pith_short_16: DNQKWIOTE5HRQWJA · pith_short_8: DNQKWIOT

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/DNQKWIOTE5HRQWJAYTWXN5M36R \
  | 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: 1b60ab21d3274f185920c4ed76f59bf44d4b2f2434ef07470ae8ef49e6c0f19e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20d555ca185f29643796ba6a9b919870d585fb7c0a66501f5e0ba903422a044a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-07-14T03:51:40Z",
    "title_canon_sha256": "12622e2e36fffdf35c1e7f270ec534c724ae18d3ad017890004ae3d56dfa6aa8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.2285",
    "kind": "arxiv",
    "version": 1
  }
}