Pith Number

pith:HI7XOTF2

pith:2011:HI7XOTF2SZ2FY7FS353OMJK5A7

not attested not anchored not stored refs pending

The OH line contamination of 21 cm intensity fluctuation measurements for z=1~4

Asantha Cooray, Mario G. Santos, Marta Silva, Xuelei Chen, Yan Gong

arxiv:1108.0947 v2 · 2011-08-03 · 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{HI7XOTF2SZ2FY7FS353OMJK5A7}

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	2026-05-18T02:01:03.264767Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a3f774cba96745c7cb2df76e6255d07f31b1be268732706343dc371c6db0cef

Aliases

arxiv: 1108.0947 · arxiv_version: 1108.0947v2 · doi: 10.48550/arxiv.1108.0947 · pith_short_12: HI7XOTF2SZ2F · pith_short_16: HI7XOTF2SZ2FY7FS · pith_short_8: HI7XOTF2

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/HI7XOTF2SZ2FY7FS353OMJK5A7 \
  | 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: 3a3f774cba96745c7cb2df76e6255d07f31b1be268732706343dc371c6db0cef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63c2788dc429074dc717d7d4881f633ab9d69263abdc6fde10dbf5337660d578",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-08-03T20:47:10Z",
    "title_canon_sha256": "e363d6231c16de25ef9abae3a7493876741187578a96af68f8126b80a2cdacf8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.0947",
    "kind": "arxiv",
    "version": 2
  }
}