Pith Number

pith:625AN2BX

pith:2016:625AN2BX6G2KNHJXTCU4GCKZVE

not attested not anchored not stored refs pending

On the redshift of the very high energy {\gamma}-ray BL Lac object S2 0109+22

Aldo Treves, Marco Landoni, Renato Falomo, Riccardo Scarpa, Simona Paiano

arxiv:1602.08703 v1 · 2016-02-28 · astro-ph.GA · 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{625AN2BX6G2KNHJXTCU4GCKZVE}

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	2026-05-18T01:19:00.875322Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6ba06e837f1b4a69d3798a9c30959a927783ae7ea8d94a98644cf138554ca59

Aliases

arxiv: 1602.08703 · arxiv_version: 1602.08703v1 · doi: 10.48550/arxiv.1602.08703 · pith_short_12: 625AN2BX6G2K · pith_short_16: 625AN2BX6G2KNHJX · pith_short_8: 625AN2BX

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/625AN2BX6G2KNHJXTCU4GCKZVE \
  | 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: f6ba06e837f1b4a69d3798a9c30959a927783ae7ea8d94a98644cf138554ca59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aaaf3c3168d508bf8c7c3419311d46ca79b55224a1f13d2e8379aa3ec352fcb0",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-02-28T11:45:27Z",
    "title_canon_sha256": "a31ea9c269ba1f4618e56298409bc78e84fd706589393736740fec6a91a3cce5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.08703",
    "kind": "arxiv",
    "version": 1
  }
}