Pith Number

pith:Q7HZZDG4

pith:2015:Q7HZZDG4K4FFQSL6Q2534SZHDD

not attested not anchored not stored refs pending

The wedge bias in reionization 21-cm power spectrum measurements

Adam Lidz, Garrelt Mellema, Hannes Jensen, Ilian T. Iliev, Keri L. Dixon, Suman Majumdar

arxiv:1509.02277 v2 · 2015-09-08 · 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{Q7HZZDG4K4FFQSL6Q2534SZHDD}

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	2026-05-18T01:23:55.518076Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87cf9c8cdc570a58497e86bbbe4b2718c3f3274e10c714ab30697756cd46cbb5

Aliases

arxiv: 1509.02277 · arxiv_version: 1509.02277v2 · doi: 10.48550/arxiv.1509.02277 · pith_short_12: Q7HZZDG4K4FF · pith_short_16: Q7HZZDG4K4FFQSL6 · pith_short_8: Q7HZZDG4

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/Q7HZZDG4K4FFQSL6Q2534SZHDD \
  | 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: 87cf9c8cdc570a58497e86bbbe4b2718c3f3274e10c714ab30697756cd46cbb5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "adeb7060e64d0de8c86257e1f130d514a9009dbe7f5c4f6415f9d7f1cd9f740a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-09-08T08:13:03Z",
    "title_canon_sha256": "c51d5c44e70e3e7367abbf240290b9edc3ddd55e0f59e060e03fa25b3f8d85a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.02277",
    "kind": "arxiv",
    "version": 2
  }
}