Pith Number

pith:MXSHRTKB

pith:2011:MXSHRTKBNKH6FJBHXLTXC6WZZZ

not attested not anchored not stored refs pending

A Method for 21cm Power Spectrum Estimation in the Presence of Foregrounds

Adrian Liu, Max Tegmark

arxiv:1103.0281 v2 · 2011-03-01 · 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{MXSHRTKBNKH6FJBHXLTXC6WZZZ}

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	2026-05-18T04:20:52.472156Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65e478cd416a8fe2a427bae7717ad9ce64c71a02ba09f2afbb0e73bed2250ca8

Aliases

arxiv: 1103.0281 · arxiv_version: 1103.0281v2 · doi: 10.48550/arxiv.1103.0281 · pith_short_12: MXSHRTKBNKH6 · pith_short_16: MXSHRTKBNKH6FJBH · pith_short_8: MXSHRTKB

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/MXSHRTKBNKH6FJBHXLTXC6WZZZ \
  | 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: 65e478cd416a8fe2a427bae7717ad9ce64c71a02ba09f2afbb0e73bed2250ca8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac37daa5e9518909a73bc9c7ec806de212b4f1e6ee1c3b2a3e882e86c41cb20e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-03-01T21:00:17Z",
    "title_canon_sha256": "9494b53486da0897e02c22fd7cb9c33c806dc58852b314702277fe5989a9ac61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.0281",
    "kind": "arxiv",
    "version": 2
  }
}