Pith Number

pith:OBBFFLXK

pith:2015:OBBFFLXKVLYLAT75YGZS576GFF

not attested not anchored not stored refs pending

Redshift measurement of the BL-Lac gamma-ray blazar PKS 1424+240

A.C. Rovero, A. Pichel, C. Donzelli, H. Muriel

arxiv:1509.08377 v1 · 2015-09-28 · 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{OBBFFLXKVLYLAT75YGZS576GFF}

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	2026-05-18T01:31:54.001248Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

704252aeeaaaf0b04ffdc1b32effc629768db07c189463f5437225fad5cbe10d

Aliases

arxiv: 1509.08377 · arxiv_version: 1509.08377v1 · doi: 10.48550/arxiv.1509.08377 · pith_short_12: OBBFFLXKVLYL · pith_short_16: OBBFFLXKVLYLAT75 · pith_short_8: OBBFFLXK

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/OBBFFLXKVLYLAT75YGZS576GFF \
  | 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: 704252aeeaaaf0b04ffdc1b32effc629768db07c189463f5437225fad5cbe10d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7c56116e4408cf3f3a37b7d498e936e458b4351a1b4bf3613793e5c71f27103",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-09-28T16:05:50Z",
    "title_canon_sha256": "c7dbd6e52ed0953c25e2d17bbcb1cbc406d85d007108c053ae5d3a6c55e35faf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.08377",
    "kind": "arxiv",
    "version": 1
  }
}