Pith Number

pith:WNPBYK6J

pith:2019:WNPBYK6J3KAHDJ7HUKSHZC4LBJ

not attested not anchored not stored refs pending

Variable jet Lorentz factors can explain soft self-absorbed radio spectra of accreting black-holes

Andrzej A. Zdziarski

arxiv:1908.04216 v1 · 2019-08-12 · 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{WNPBYK6J3KAHDJ7HUKSHZC4LBJ}

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	2026-07-04T23:58:53.832068Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b35e1c2bc9da8071a7e7a2a47c8b8b0a79663d4d92d74cfc5e381255d82d732b

Aliases

arxiv: 1908.04216 · arxiv_version: 1908.04216v1 · doi: 10.48550/arxiv.1908.04216 · pith_short_12: WNPBYK6J3KAH · pith_short_16: WNPBYK6J3KAHDJ7H · pith_short_8: WNPBYK6J

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/WNPBYK6J3KAHDJ7HUKSHZC4LBJ \
  | 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: b35e1c2bc9da8071a7e7a2a47c8b8b0a79663d4d92d74cfc5e381255d82d732b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a17d09d236483e180292918cc63c98841643d2a3f2fa9ca0636f96525597f3dd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-08-12T16:01:56Z",
    "title_canon_sha256": "23e1b606ae76bfc3248b0bad400cf987edc00369b32e524748ebba91a2c4fa85"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04216",
    "kind": "arxiv",
    "version": 1
  }
}