pith. sign in
Pith Number

pith:XMJX6IHL

pith:2009:XMJX6IHLNW6BJM5OATZNMXM3Q2
not attested not anchored not stored refs pending

Radio Recombination Lines toward the Galactic Center Lobe

2, (2) University of Amsterdam, 3), (3) UC Berkeley, (4) NRAO), C. J. Law (1, D. Backer (3), F. Yusef-Zadeh (1), R. Maddalena (4) ((1) Northwestern University

arxiv:0901.1480 v1 · 2009-01-11 · astro-ph.GA

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{XMJX6IHLNW6BJM5OATZNMXM3Q2}

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 2026-05-18T04:29:23.959368Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

bb137f20eb6dbc14b3ae04f2d65d9b86948932c191356819769591f507a2b714

Aliases

arxiv: 0901.1480 · arxiv_version: 0901.1480v1 · doi: 10.48550/arxiv.0901.1480 · pith_short_12: XMJX6IHLNW6B · pith_short_16: XMJX6IHLNW6BJM5O · pith_short_8: XMJX6IHL
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/XMJX6IHLNW6BJM5OATZNMXM3Q2 \
  | 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: bb137f20eb6dbc14b3ae04f2d65d9b86948932c191356819769591f507a2b714
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "64eccc7e5167075ca0abe5181b3d73ddc29c0c1a056236a08df78061c5519e39",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-01-11T23:05:17Z",
    "title_canon_sha256": "99675f18779b9484b05112dfe1b41eb5056067510ec92bd2f6abed2b0d2ed732"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.1480",
    "kind": "arxiv",
    "version": 1
  }
}