Pith Number

pith:MBHZOLBD

pith:2014:MBHZOLBDWOVCR3G365HY6QX4QL

not attested not anchored not stored refs pending

Foreground Model and Antenna Calibration Errors in the Measurement of the Sky-Averaged \lambda 21 cm Signal at z~20

G. Bernardi, L.J. Greenhill, M. McQuinn

arxiv:1404.0887 v4 · 2014-04-03 · 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{MBHZOLBDWOVCR3G365HY6QX4QL}

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	2026-05-18T01:43:42.636566Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

604f972c23b3aa28ecdbf74f8f42fc82c99253e68c9c2c83b31680da7ea7d516

Aliases

arxiv: 1404.0887 · arxiv_version: 1404.0887v4 · doi: 10.48550/arxiv.1404.0887 · pith_short_12: MBHZOLBDWOVC · pith_short_16: MBHZOLBDWOVCR3G3 · pith_short_8: MBHZOLBD

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/MBHZOLBDWOVCR3G365HY6QX4QL \
  | 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: 604f972c23b3aa28ecdbf74f8f42fc82c99253e68c9c2c83b31680da7ea7d516

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb743073f915d45f510293da6a755ead1916241e2cc0b164afb1b4edd0bb140e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2014-04-03T12:50:42Z",
    "title_canon_sha256": "fdcee838179477919c42b3d1c9e9cf8ea4cbae8d640bbe1a33cd6d6340c77dc4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.0887",
    "kind": "arxiv",
    "version": 4
  }
}