Pith Number

pith:H3Z2RFN3

pith:2012:H3Z2RFN326TFBN4CHL6EA2532A

not attested not anchored not stored refs pending

The effect of primordial black holes on 21 cm fluctuations

Hiroyuki Tashiro, Naoshi Sugiyama

arxiv:1207.6405 v2 · 2012-07-26 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H3Z2RFN326TFBN4CHL6EA2532A}

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	2026-05-18T01:56:06.878778Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ef3a895bbd7a650b7823afc406bbbd031289743b97c27ae39acfed06b1a1f20

Aliases

arxiv: 1207.6405 · arxiv_version: 1207.6405v2 · doi: 10.48550/arxiv.1207.6405 · pith_short_12: H3Z2RFN326TF · pith_short_16: H3Z2RFN326TFBN4C · pith_short_8: H3Z2RFN3

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/H3Z2RFN326TFBN4CHL6EA2532A \
  | 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: 3ef3a895bbd7a650b7823afc406bbbd031289743b97c27ae39acfed06b1a1f20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c47560d415e37c9991540ebbceb9b6c81b15fd28fb29992659348d3ad091f4b8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-07-26T20:09:51Z",
    "title_canon_sha256": "75a23bfc66b5e61990666c7f299f441a27de2855b24de08beaec7a5571aec1ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.6405",
    "kind": "arxiv",
    "version": 2
  }
}