Pith Number

pith:YUDFPSGJ

pith:2010:YUDFPSGJYAKRA64D4URR4MF3W5

not attested not anchored not stored refs pending

Discovery of K-Shell Emission Lines of Neutral Atoms in the Galactic Center Region

Katsuji Koyama, Masayoshi Nobukawa, Syukyo G Ryu, Takeshi Go Tsuru, Vincent Tatischeff

arxiv:1004.3891 v1 · 2010-04-22 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YUDFPSGJYAKRA64D4URR4MF3W5}

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	2026-05-18T02:07:55.227308Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c50657c8c9c015107b83e5231e30bbb75c2b8d0cff0439c453ebf5145b6a6d55

Aliases

arxiv: 1004.3891 · arxiv_version: 1004.3891v1 · doi: 10.48550/arxiv.1004.3891 · pith_short_12: YUDFPSGJYAKR · pith_short_16: YUDFPSGJYAKRA64D · pith_short_8: YUDFPSGJ

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/YUDFPSGJYAKRA64D4URR4MF3W5 \
  | 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: c50657c8c9c015107b83e5231e30bbb75c2b8d0cff0439c453ebf5145b6a6d55

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bba94e56b2ebad64e4a54d28922f72b134a70d6921fbec8ffa4ed1a157e5e75c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-04-22T11:30:11Z",
    "title_canon_sha256": "f15f152b486bd249c800b3059288dbf96c93aec06e0c9c58bcc9626c49693d6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.3891",
    "kind": "arxiv",
    "version": 1
  }
}