Pith Number

pith:HN536OY7

pith:2012:HN536OY7FCXZUFRJNTSDKEKVGY

not attested not anchored not stored refs pending

The radio spectra of reddened 2MASS QSOs: evidence for young radio jets

A. Georgakakis, A. M. Hopkins, J. Afonso, M. Grossi

arxiv:1201.3922 v1 · 2012-01-18 · 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{HN536OY7FCXZUFRJNTSDKEKVGY}

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	2026-05-18T04:04:16.482851Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b7bbf3b1f28af9a16296ce435115536006745390007beec3b476b012f8d940e

Aliases

arxiv: 1201.3922 · arxiv_version: 1201.3922v1 · doi: 10.48550/arxiv.1201.3922 · pith_short_12: HN536OY7FCXZ · pith_short_16: HN536OY7FCXZUFRJ · pith_short_8: HN536OY7

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/HN536OY7FCXZUFRJNTSDKEKVGY \
  | 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: 3b7bbf3b1f28af9a16296ce435115536006745390007beec3b476b012f8d940e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2dc9d0a92f525c3e6546bce90368286b4ea5e04e50df6f63717faa0504f7d73",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-01-18T21:00:45Z",
    "title_canon_sha256": "dddc16ae1eb82989f255ddefefd109f4790b42b3b541ff1f696ea4f7b813f1b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.3922",
    "kind": "arxiv",
    "version": 1
  }
}