Pith Number

pith:VZID35AK

pith:2026:VZID35AK6I3VG5MWLHWJ2F73VB

not attested not anchored not stored refs pending

Hunting for extreme high-energy-peaked BL Lacs: Rare to find and difficult to classify

Loredana Bassani, Nicola Masetti, Raffaella Landi

arxiv:2606.26475 v1 · 2026-06-25 · 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{VZID35AK6I3VG5MWLHWJ2F73VB}

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	2026-06-26T01:15:32.241874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae503df40af23753759659ec9d17fba86f39c538c1dced69cd4eba54e9f70a9a

Aliases

arxiv: 2606.26475 · arxiv_version: 2606.26475v1 · doi: 10.48550/arxiv.2606.26475 · pith_short_12: VZID35AK6I3V · pith_short_16: VZID35AK6I3VG5MW · pith_short_8: VZID35AK

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/VZID35AK6I3VG5MWLHWJ2F73VB \
  | 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: ae503df40af23753759659ec9d17fba86f39c538c1dced69cd4eba54e9f70a9a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fe320cc7b92d0fafcb4fa4740938b5c00aaa335a88d9ced5c1d27df5e0ed232",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-06-25T00:17:16Z",
    "title_canon_sha256": "69f2268466e837706dfb5446f63ac5dee82827a5ea7e2ef342669ce713df9a76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.26475",
    "kind": "arxiv",
    "version": 1
  }
}