Pith Number

pith:BS32ELD4

pith:2019:BS32ELD47S4H6V45FPNWREYRNF

not attested not anchored not stored refs pending

Astrophysics from the 21-cm background

Jordan Mirocha

arxiv:1909.12595 v1 · 2019-09-27 · 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{BS32ELD47S4H6V45FPNWREYRNF}

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	2026-07-05T00:07:41.403639Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cb7a22c7cfcb87f579d2bdb689311697b93a9ad21a74c041afb43796af4193f

Aliases

arxiv: 1909.12595 · arxiv_version: 1909.12595v1 · doi: 10.48550/arxiv.1909.12595 · pith_short_12: BS32ELD47S4H · pith_short_16: BS32ELD47S4H6V45 · pith_short_8: BS32ELD4

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/BS32ELD47S4H6V45FPNWREYRNF \
  | 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: 0cb7a22c7cfcb87f579d2bdb689311697b93a9ad21a74c041afb43796af4193f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4bb46ebc2651b724115b988f0557b632d37d26931fa40c8c155e7265ad87412c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-09-27T10:15:55Z",
    "title_canon_sha256": "53a404b4357ddc75275967d8aefd36530570e080e2eed65b1212722fd1f2a712"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.12595",
    "kind": "arxiv",
    "version": 1
  }
}