Pith Number

pith:EGSWHF7T

pith:2018:EGSWHF7TT4LZEOGYJBIWX44JQH

not attested not anchored not stored refs pending

M101: Spectral Observations of HII Regions and Their Physical Properties

Enci Wang, Fuzhen Cheng, Guanwen Fang, Hu Zou, Jing Wang, Lin Lin, Ning Hu, Xu Kong, Xu Zhou, Yewei Mao, Yinan Zhu, Zesen Lin, Zhiming Zhou, Zou Fan

arxiv:1803.04854 v2 · 2018-03-13 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EGSWHF7TT4LZEOGYJBIWX44JQH}

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	2026-05-18T00:20:34.488623Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21a56397f39f179238d848516bf38981c35278396ce263026a79355ceffd989f

Aliases

arxiv: 1803.04854 · arxiv_version: 1803.04854v2 · doi: 10.48550/arxiv.1803.04854 · pith_short_12: EGSWHF7TT4LZ · pith_short_16: EGSWHF7TT4LZEOGY · pith_short_8: EGSWHF7T

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/EGSWHF7TT4LZEOGYJBIWX44JQH \
  | 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: 21a56397f39f179238d848516bf38981c35278396ce263026a79355ceffd989f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bdf04f0c77553925bd3c9bbf7eae542a7b5bbc0ae6af64bfaef51dbf135f50dc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-03-13T14:50:19Z",
    "title_canon_sha256": "391f85a64e30ad7d70d0fe672593cceb6aa44f02d68f7a62c4c2c7eb8b7e4cb4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.04854",
    "kind": "arxiv",
    "version": 2
  }
}