Pith Number

pith:HWDKCN4Z

pith:1997:HWDKCN4ZJMTV3T4J55WHP4VSVF

not attested not anchored not stored refs pending

Unification of all Blazars

Gabriele Ghisellini (Osservatorio di Brera, Italy), Merate

arxiv:astro-ph/9706216 v1 · 1997-06-20 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HWDKCN4ZJMTV3T4J55WHP4VSVF}

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	2026-07-04T14:15:11.108792Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d86a137994b275dcf89ef6c77f2b2a964f5e45a3ec53b6db2c0d94977870676

Aliases

arxiv: astro-ph/9706216 · arxiv_version: astro-ph/9706216v1 · doi: 10.48550/arxiv.astro-ph/9706216 · pith_short_12: HWDKCN4ZJMTV · pith_short_16: HWDKCN4ZJMTV3T4J · pith_short_8: HWDKCN4Z

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/HWDKCN4ZJMTV3T4J55WHP4VSVF \
  | 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: 3d86a137994b275dcf89ef6c77f2b2a964f5e45a3ec53b6db2c0d94977870676

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd5e7c77bbdbe269818bb21c4de60792c412c362603dea555eacd6b62b89b00c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-06-20T16:41:57Z",
    "title_canon_sha256": "b1a197835bbc524be20dca9fd620c4bc5efccfff4b7860a6b77fda9494ac71d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9706216",
    "kind": "arxiv",
    "version": 1
  }
}