Pith Number

pith:NTHG4B3O

pith:2021:NTHG4B3OQXYKZYVX4UDPZCMDOM

not attested not anchored not stored refs pending

Surveying the Giant HII Regions of the Milky Way with SOFIA: III. W49A

James M. De Buizer, James Radomski, Mengyao Liu, Nicole Karnath, Wanggi Lim

arxiv:2111.01859 v1 · 2021-11-02 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NTHG4B3OQXYKZYVX4UDPZCMDOM}

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	2026-07-05T03:45:53.194188Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6cce6e076e85f0ace2b7e506fc8983732212833ec68db2afa2f3b22b08a0d807

Aliases

arxiv: 2111.01859 · arxiv_version: 2111.01859v1 · doi: 10.48550/arxiv.2111.01859 · pith_short_12: NTHG4B3OQXYK · pith_short_16: NTHG4B3OQXYKZYVX · pith_short_8: NTHG4B3O

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/NTHG4B3OQXYKZYVX4UDPZCMDOM \
  | 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: 6cce6e076e85f0ace2b7e506fc8983732212833ec68db2afa2f3b22b08a0d807

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d95442063f99677c7d6622c0dd9e49f2625221b18339273e8597fb73197daac",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-11-02T19:28:34Z",
    "title_canon_sha256": "78f8f43d88ed9359b9b48473e0dc4c66ed85b303097c37188f1f4e1d027312f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.01859",
    "kind": "arxiv",
    "version": 1
  }
}