Pith Number

pith:XU64RCMH

pith:2013:XU64RCMHCL322RBIVXCHCYFGHK

not attested not anchored not stored refs pending

Very Long Baseline Array Imaging of Parsec-scale Radio Emissions in Nearby Radio-quiet Narrow-line Seyfert 1 Galaxies

Akihiro Doi, Hiroshi Nagai, Keiichi Asada, Kenta Fujisawa, Kiyoaki Wajima, Makoto Inoue, Yoshiaki Hagiwara

arxiv:1301.4758 v1 · 2013-01-21 · 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{XU64RCMHCL322RBIVXCHCYFGHK}

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	2026-05-18T01:52:05.323671Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd3dc8898712f7ad4428adc47160a63aa58d6384dc297446ba3147938e4e0c14

Aliases

arxiv: 1301.4758 · arxiv_version: 1301.4758v1 · doi: 10.48550/arxiv.1301.4758 · pith_short_12: XU64RCMHCL32 · pith_short_16: XU64RCMHCL322RBI · pith_short_8: XU64RCMH

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/XU64RCMHCL322RBIVXCHCYFGHK \
  | 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: bd3dc8898712f7ad4428adc47160a63aa58d6384dc297446ba3147938e4e0c14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85ce3c94b46344ef2c9ff201155427fd878efa4ecb832dd4ff9128bc3a727abb",
    "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": "2013-01-21T05:32:12Z",
    "title_canon_sha256": "55bd97990753a6f0abdb40f05ac7e8a9c0e38a7d870d72b051965e6ff1731515"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.4758",
    "kind": "arxiv",
    "version": 1
  }
}