Pith Number

pith:M43QFQ56

pith:2016:M43QFQ56MWJ34XCE3MODSNOITY

not attested not anchored not stored refs pending

Constraining the redshifted 21-cm signal with the unresolved soft X-ray background

2), (2) Ecole Normale Superieure, (3) Tel Aviv University, 4, (4) Institut d'Astrophysique de Paris, 5, 5), (5) University of Oxford, 6) ((1) Harvard University, (6) The Johns Hopkins University), Anastasia Fialkov (1, Aviad Cohen (3), Joseph Silk (4, Rennan Barkana (3

arxiv:1602.07322 v2 · 2016-02-23 · 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{M43QFQ56MWJ34XCE3MODSNOITY}

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	2026-05-18T01:01:28.750979Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

673702c3be6593be5c44db1c3935c89e0e5cf0561c02c34a3fef76cfc64dea08

Aliases

arxiv: 1602.07322 · arxiv_version: 1602.07322v2 · doi: 10.48550/arxiv.1602.07322 · pith_short_12: M43QFQ56MWJ3 · pith_short_16: M43QFQ56MWJ34XCE · pith_short_8: M43QFQ56

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/M43QFQ56MWJ34XCE3MODSNOITY \
  | 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: 673702c3be6593be5c44db1c3935c89e0e5cf0561c02c34a3fef76cfc64dea08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e01d1415df520f3485814145dc3fe345cfc9c3da97b2e037ff00302636f2c957",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2016-02-23T21:27:21Z",
    "title_canon_sha256": "241730a1895a1edde3032c50a00befbda86070871db66ae93baf20f1f376216c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.07322",
    "kind": "arxiv",
    "version": 2
  }
}