Pith Number

pith:ZQQY4RAO

pith:2020:ZQQY4RAO2STKZSYQJ6WK5JETMQ

not attested not anchored not stored refs pending

The Open Universe survey of Swift-XRT GRB fields: a complete sample of HBL blazars

A. Di Giovanni, A.M.T. Pollock, A.V. Penacchioni, C.H. Brandt, C. Leto, F. Arneodo, F. Verrecchia, J. Del Rio Vera, M. Capalbi, M. de Angelis, M. Perri, N. Ricard, N. Sahakyan, O. Civitarese, P. Giommi, P. Padovani, R. Middei, R. Ruffini, S. Di Pippo, S. Puccetti, S. Turriziani, T. Glauch, U. Barres de Almeida, V. D'Elia, Y.L. Chang

arxiv:2003.05153 v2 · 2020-03-11 · 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{ZQQY4RAO2STKZSYQJ6WK5JETMQ}

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	2026-07-05T01:42:34.287864Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc218e440ed4a6accb104facaea4936402c10d4698d05f6ff2b2fc357806cacb

Aliases

arxiv: 2003.05153 · arxiv_version: 2003.05153v2 · doi: 10.48550/arxiv.2003.05153 · pith_short_12: ZQQY4RAO2STK · pith_short_16: ZQQY4RAO2STKZSYQ · pith_short_8: ZQQY4RAO

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/ZQQY4RAO2STKZSYQJ6WK5JETMQ \
  | 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: cc218e440ed4a6accb104facaea4936402c10d4698d05f6ff2b2fc357806cacb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b6cac47aca7a5f789888e6d8d1404f5b2b6b18879390597f354c6dd9c374c73",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-03-11T08:16:21Z",
    "title_canon_sha256": "748ca868d7008a6870aa4360af3f93d23d3da90ee16b2c6a3934efa0cfdc6089"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.05153",
    "kind": "arxiv",
    "version": 2
  }
}