Pith Number

pith:ERRJPZMK

pith:2015:ERRJPZMKVCV6RWRQE3CWLNF2YO

not attested not anchored not stored refs pending

Inside the Bondi radius of M87

A. C. Fabian, A. E. Broderick, B. R. McNamara, H. R. Russell

arxiv:1504.07633 v1 · 2015-04-28 · 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{ERRJPZMKVCV6RWRQE3CWLNF2YO}

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	2026-05-18T01:35:48.254574Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

246297e58aa8abe8da3026c565b4bac3a25da2c857d99255f9cfa500b3e71402

Aliases

arxiv: 1504.07633 · arxiv_version: 1504.07633v1 · doi: 10.48550/arxiv.1504.07633 · pith_short_12: ERRJPZMKVCV6 · pith_short_16: ERRJPZMKVCV6RWRQ · pith_short_8: ERRJPZMK

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/ERRJPZMKVCV6RWRQE3CWLNF2YO \
  | 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: 246297e58aa8abe8da3026c565b4bac3a25da2c857d99255f9cfa500b3e71402

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dec4bc70cade1e198b484aba6fd6b0cd05926dba8eb14975d9336eb0f43a9eee",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-04-28T20:00:31Z",
    "title_canon_sha256": "f4dd6389e217bd8f1b44829fb64849c502518af9216739140cf11e0b8e6c9f96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.07633",
    "kind": "arxiv",
    "version": 1
  }
}