Pith Number

pith:DGZPGBFA

pith:2015:DGZPGBFAXPPJXW5YVAWMR2X7JD

not attested not anchored not stored refs pending

High-energy properties of the high-redshift flat spectrum radio quasar PKS 2149-306

F. D'Ammando (DIFA, INAF-IRA Bologna), M. Orienti (INAF-IRA Bologna), University of Bologna

arxiv:1510.06416 v1 · 2015-10-21 · 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{DGZPGBFAXPPJXW5YVAWMR2X7JD}

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	2026-05-18T01:29:31.067101Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19b2f304a0bbde9bdbb8a82cc8eaff48c5251ba5543339e847fefc9219396f30

Aliases

arxiv: 1510.06416 · arxiv_version: 1510.06416v1 · doi: 10.48550/arxiv.1510.06416 · pith_short_12: DGZPGBFAXPPJ · pith_short_16: DGZPGBFAXPPJXW5Y · pith_short_8: DGZPGBFA

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/DGZPGBFAXPPJXW5YVAWMR2X7JD \
  | 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: 19b2f304a0bbde9bdbb8a82cc8eaff48c5251ba5543339e847fefc9219396f30

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c044dee75883ba77c9a8345a7030b76c1bcafcd55fc13cf1632dfe9f8c7a75b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-10-21T20:13:03Z",
    "title_canon_sha256": "991f2d8af7e564a6d730d5150474553c079f15ee442c1fa5cb0764860993e6df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.06416",
    "kind": "arxiv",
    "version": 1
  }
}