Pith Number

pith:AHD7S72W

pith:2020:AHD7S72WEFCVX2QAUOYKDMNZP7

not attested not anchored not stored refs pending

Test for the Origin of Solar Mass Black Holes

Alexander Kusenko, George M. Fuller, Volodymyr Takhistov

arxiv:2008.12780 v2 · 2020-08-28 · astro-ph.HE · astro-ph.CO · hep-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{AHD7S72WEFCVX2QAUOYKDMNZP7}

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	2026-07-05T02:17:32.120055Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01c7f97f5621455bea00a3b0a1b1b97ffeffd9bbef6e9f039ff4ecfed2f7798f

Aliases

arxiv: 2008.12780 · arxiv_version: 2008.12780v2 · doi: 10.48550/arxiv.2008.12780 · pith_short_12: AHD7S72WEFCV · pith_short_16: AHD7S72WEFCVX2QA · pith_short_8: AHD7S72W

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/AHD7S72WEFCVX2QAUOYKDMNZP7 \
  | 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: 01c7f97f5621455bea00a3b0a1b1b97ffeffd9bbef6e9f039ff4ecfed2f7798f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9cf9f55eb6c427e5434bb4e78c73d45d1792faa1e3fab39415978213e34c8531",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-08-28T18:23:16Z",
    "title_canon_sha256": "e868e78bf07f02b60795986886d4d6303f9d1f7ce2eea145d4bdb42d325923df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.12780",
    "kind": "arxiv",
    "version": 2
  }
}