Pith Number

pith:PD2NSOWW

pith:2016:PD2NSOWWDHTV7BZUARYQRFAHZO

not attested not anchored not stored refs pending

Comparison between TeV and non-TeV BL Lac Objects

C. Lin, J. H. Fan

arxiv:1604.06320 v2 · 2016-04-21 · 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{PD2NSOWWDHTV7BZUARYQRFAHZO}

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	2026-05-18T01:11:12.037473Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78f4d93ad619e75f87340471089407cbb0ec088a80aaed4e6fe7d7fc02c924f0

Aliases

arxiv: 1604.06320 · arxiv_version: 1604.06320v2 · doi: 10.48550/arxiv.1604.06320 · pith_short_12: PD2NSOWWDHTV · pith_short_16: PD2NSOWWDHTV7BZU · pith_short_8: PD2NSOWW

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/PD2NSOWWDHTV7BZUARYQRFAHZO \
  | 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: 78f4d93ad619e75f87340471089407cbb0ec088a80aaed4e6fe7d7fc02c924f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64d79d6e29164bcda66137ee67276abf7233ae1e2bbaa3014a85c376f37d1e0a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-04-21T14:21:23Z",
    "title_canon_sha256": "7603042e68e6b880468c5cde61b6be642147439682074765ecdf19cf4e0e4e75"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.06320",
    "kind": "arxiv",
    "version": 2
  }
}