Pith Number

pith:LIX6BMY2

pith:2015:LIX6BMY25V5WQOI3JASFXDHYXG

not attested not anchored not stored refs pending

A practical theorem on using interferometry to measure the global 21-cm signal

Christopher M. Hirata, Olivier Dor\'e, Tejaswi Venumadhav, Tzu-Ching Chang

arxiv:1512.05248 v2 · 2015-12-16 · astro-ph.IM · 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{LIX6BMY25V5WQOI3JASFXDHYXG}

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	2026-05-18T01:10:07.840723Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a2fe0b31aed7b68391b48245b8cf8b99e3e9fe8f509ba9de4c298057797c5fb

Aliases

arxiv: 1512.05248 · arxiv_version: 1512.05248v2 · doi: 10.48550/arxiv.1512.05248 · pith_short_12: LIX6BMY25V5W · pith_short_16: LIX6BMY25V5WQOI3 · pith_short_8: LIX6BMY2

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/LIX6BMY25V5WQOI3JASFXDHYXG \
  | 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: 5a2fe0b31aed7b68391b48245b8cf8b99e3e9fe8f509ba9de4c298057797c5fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c78295f9322e211fe8e4a33dcc8a4b60a305a1bdea17ecba038ff32bf690e2f",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-12-16T16:59:17Z",
    "title_canon_sha256": "cf660cd42c01791a92535048cad428ec23bb67ecfb3628738caeeb9daf30570c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.05248",
    "kind": "arxiv",
    "version": 2
  }
}