Pith Number

pith:ZH7PJX5U

pith:2021:ZH7PJX5UXDB2UZWMOLBZPIQ32P

not attested not anchored not stored refs pending

Gamma-rays from young radio galaxies and quasars

Filippo D'Ammando, Giacomo Principe, Giulia Migliori, Leonardo Di Venere, Marcello Giroletti, Mario Nicola Mazziotta, Monica Orienti

arxiv:2107.12963 v2 · 2021-07-27 · astro-ph.HE · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZH7PJX5UXDB2UZWMOLBZPIQ32P}

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	2026-07-05T03:16:33.436108Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9fef4dfb4b8c3aa66cc72c397a21bd3d0a71088f07bfb8d084efa03a52164ef

Aliases

arxiv: 2107.12963 · arxiv_version: 2107.12963v2 · doi: 10.48550/arxiv.2107.12963 · pith_short_12: ZH7PJX5UXDB2 · pith_short_16: ZH7PJX5UXDB2UZWM · pith_short_8: ZH7PJX5U

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/ZH7PJX5UXDB2UZWMOLBZPIQ32P \
  | 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: c9fef4dfb4b8c3aa66cc72c397a21bd3d0a71088f07bfb8d084efa03a52164ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01421a299f2a5cc83dd70b295f212b108af43c2c56ffa61035587ae15441bf08",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-07-27T17:27:53Z",
    "title_canon_sha256": "bd501dc490f06551cfa06b8ff75ac5771f10f1fae957ff2e882a6765614df891"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.12963",
    "kind": "arxiv",
    "version": 2
  }
}