Pith Number

pith:3X6I6NMV

pith:2021:3X6I6NMVYIUVUJRLLLTWY6C5AR

not attested not anchored not stored refs pending

The 511 keV Excess and Primordial Black Holes

Celeste Keith, Dan Hooper

arxiv:2103.08611 v2 · 2021-03-15 · astro-ph.CO · astro-ph.GA · astro-ph.HE · 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{3X6I6NMVYIUVUJRLLLTWY6C5AR}

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.

Cited by

1 paper in Pith

Constraints on Primordial Black Holes from Galactic Diffuse Synchrotron Emissions

Receipt and verification

First computed	2026-07-05T04:12:34.519247Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ddfc8f3595c2295a262b5ae76c785d0479c256f5957b74101d545845dd4d437b

Aliases

arxiv: 2103.08611 · arxiv_version: 2103.08611v2 · doi: 10.48550/arxiv.2103.08611 · pith_short_12: 3X6I6NMVYIUV · pith_short_16: 3X6I6NMVYIUVUJRL · pith_short_8: 3X6I6NMV

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/3X6I6NMVYIUVUJRLLLTWY6C5AR \
  | 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: ddfc8f3595c2295a262b5ae76c785d0479c256f5957b74101d545845dd4d437b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30dc53fe7e93f01507bfa0297c7501bfa6d5c19363b126d45dcb0e91d9b7650d",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE",
      "hep-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2021-03-15T18:00:04Z",
    "title_canon_sha256": "47b4a0d1b266f488d3e58051f6a9e472825d9c6d2cde0f9d6766b67f73123f0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.08611",
    "kind": "arxiv",
    "version": 2
  }
}