Pith Number

pith:BHKFERKX

pith:2014:BHKFERKXB2QOT5ALWURY64LTYE

not attested not anchored not stored refs pending

Direct detection of Black Holes via electromagnetic radiation

J. L. G. Sobrinho, P. Augusto

arxiv:1406.1785 v1 · 2014-06-06 · astro-ph.CO · 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{BHKFERKXB2QOT5ALWURY64LTYE}

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	2026-05-18T02:50:13.985550Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09d45245570ea0e9f40bb5238f7173c11a702d238e4fbd119953ca9c082f123b

Aliases

arxiv: 1406.1785 · arxiv_version: 1406.1785v1 · doi: 10.48550/arxiv.1406.1785 · pith_short_12: BHKFERKXB2QO · pith_short_16: BHKFERKXB2QOT5AL · pith_short_8: BHKFERKX

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/BHKFERKXB2QOT5ALWURY64LTYE \
  | 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: 09d45245570ea0e9f40bb5238f7173c11a702d238e4fbd119953ca9c082f123b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2df7c935412baeaf2a3f1e1a17d89c72eff7b9f630cc9e7376529c839402ee9",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2014-06-06T19:48:13Z",
    "title_canon_sha256": "d6534a5b65f4f8598f0230e5d2a3ad243caabc60042bc2acf4055f44bad60f25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.1785",
    "kind": "arxiv",
    "version": 1
  }
}