Pith Number

pith:PKLCF6HW

pith:2011:PKLCF6HW3OB6KBBIKIBCTWODY2

not attested not anchored not stored refs pending

Emission models and EBL as a tool to measure the redshift of BL Lac objects

Fabrizio Tavecchio, Gessica De Caneva, Massimo Persic, Nijil Mankuzhiyil, Stefano Ansoldi

arxiv:1112.4868 v1 · 2011-12-20 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PKLCF6HW3OB6KBBIKIBCTWODY2}

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	2026-05-18T01:59:04.267043Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a9622f8f6db83e50428520229d9c3c69721281d744fcd5fbd14991da1e7cc7b

Aliases

arxiv: 1112.4868 · arxiv_version: 1112.4868v1 · doi: 10.48550/arxiv.1112.4868 · pith_short_12: PKLCF6HW3OB6 · pith_short_16: PKLCF6HW3OB6KBBI · pith_short_8: PKLCF6HW

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/PKLCF6HW3OB6KBBIKIBCTWODY2 \
  | 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: 7a9622f8f6db83e50428520229d9c3c69721281d744fcd5fbd14991da1e7cc7b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "576c26bd24181cef6a2f3abb6de064dfa15fe11c48e2ad532abcf792e13c5009",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-12-20T22:21:30Z",
    "title_canon_sha256": "f5d4a3f74598136ab5115c7b4d3cd3aa0951960d6fce7739156f97d202a155db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.4868",
    "kind": "arxiv",
    "version": 1
  }
}