Pith Number

pith:3DCK47YI

pith:2012:3DCK47YIAR2YBTXUELNWVMNRG4

not attested not anchored not stored refs pending

Exploring the Cosmic Reionization Epoch in Frequency Space: An Improved Approach to Remove the Foreground in 21 cm Tomography

Chengze Liu, Haiguang Xu, Jingying Wang, Junhua Gu, Olivier Martineau-Huynh, Tao An, Weitian Li, Xiang-Ping Wu, Xueying Guo, Yu Wang

arxiv:1211.6450 v1 · 2012-11-27 · astro-ph.CO · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3DCK47YIAR2YBTXUELNWVMNRG4}

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	2026-05-18T01:52:54.134068Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8c4ae7f08047580cef422db6ab1b1370dba566b449c27764e3f80e6d3fafa3d

Aliases

arxiv: 1211.6450 · arxiv_version: 1211.6450v1 · doi: 10.48550/arxiv.1211.6450 · pith_short_12: 3DCK47YIAR2Y · pith_short_16: 3DCK47YIAR2YBTXU · pith_short_8: 3DCK47YI

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/3DCK47YIAR2YBTXUELNWVMNRG4 \
  | 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: d8c4ae7f08047580cef422db6ab1b1370dba566b449c27764e3f80e6d3fafa3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8200d23dd88093cdb4f19304e97bc18d16c995b5fd907e023ef57c4bfeb2046",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-11-27T21:09:09Z",
    "title_canon_sha256": "ba7f0caa638d9bd1fd1be23d8f71d472e653ab71beba2f42f03e92bf353e37d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.6450",
    "kind": "arxiv",
    "version": 1
  }
}