Pith Number

pith:J3I5YULG

pith:2011:J3I5YULGOLSJO2PDYKBZDXCWOE

not attested not anchored not stored refs pending

Spectropolarimetric Observations of Active Galactic Nuclei with the 6-m BTA Telescope

M.Yu. Piotrovich, N.V. Borisov, S.D. Buliga, T.M. Natsvlishvili, V.L. Afanasiev, Yu.N. Gnedin

arxiv:1104.3690 v1 · 2011-04-19 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J3I5YULGOLSJO2PDYKBZDXCWOE}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T04:23:55.802552Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ed1dc516672e49769e3c28391dc567117e7efe5e2428380b65dbc7c587fe788

Aliases

arxiv: 1104.3690 · arxiv_version: 1104.3690v1 · doi: 10.48550/arxiv.1104.3690 · pith_short_12: J3I5YULGOLSJ · pith_short_16: J3I5YULGOLSJO2PD · pith_short_8: J3I5YULG

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/J3I5YULGOLSJO2PDYKBZDXCWOE \
  | 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: 4ed1dc516672e49769e3c28391dc567117e7efe5e2428380b65dbc7c587fe788

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd87ca302f0a6cb464f8ef2051c2a9221b906bf8b862f2295db4ba386a3e69d0",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-04-19T10:07:54Z",
    "title_canon_sha256": "40036a5d16031c21a72e808cf7716bf53e1d7a3f0383c628ff1aa4e3cd157c7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.3690",
    "kind": "arxiv",
    "version": 1
  }
}