Pith Number

pith:2M2XIXJV

pith:2011:2M2XIXJVZLF3EHKET3GX66RQDH

not attested not anchored not stored refs pending

Global e-VLBI observations of the gamma-ray narrow line Seyfert 1 PMN J0948+0022

A. Doi, A. K. Tzioumis, A. Szomoru, C. Phillips, C. Reynolds, F. Colomer, H. Bignall, H. J. van Langevelde, H. Nagai, J. Blanchard, K. E. Gabanyi, L. Foschini, M. Giroletti, M. Kadler, M. Kino, M. Sekido, R. M. Campbell, X. Hong, Z. Paragi

arxiv:1102.3264 v1 · 2011-02-16 · astro-ph.CO · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2M2XIXJVZLF3EHKET3GX66RQDH}

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	2026-05-18T03:12:22.864081Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d335745d35cacbb21d449ecd7f7a3019e4b2730f5ff79402aefc0ddbd5a7c985

Aliases

arxiv: 1102.3264 · arxiv_version: 1102.3264v1 · doi: 10.48550/arxiv.1102.3264 · pith_short_12: 2M2XIXJVZLF3 · pith_short_16: 2M2XIXJVZLF3EHKE · pith_short_8: 2M2XIXJV

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/2M2XIXJVZLF3EHKET3GX66RQDH \
  | 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: d335745d35cacbb21d449ecd7f7a3019e4b2730f5ff79402aefc0ddbd5a7c985

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f6c39eaf5c070127f620b1cce1d51bffee22ceb62f5ce3158a6b2ef565bf14c",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-02-16T08:54:41Z",
    "title_canon_sha256": "af5c4b57cc092194f7a43a7cd7df9947e55829a36768a90252b9478c04c3b649"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.3264",
    "kind": "arxiv",
    "version": 1
  }
}