Pith Number

pith:NVMVTECW

pith:2021:NVMVTECWVASZ6MQENWNX4PVZZU

not attested not anchored not stored refs pending

The HI Column Density Distribution of the Galactic Disk and Halo

Andrew J. Fox, Bart P. Wakker, Blair D. Savage, Colin Norman, David M. French, J. Christopher Howk, John O'Meara, Nicolas Lehner, Philipp Richter, Sanchayeeta Borthakur, Timoth Heckman

arxiv:2108.07419 v2 · 2021-08-17 · 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{NVMVTECWVASZ6MQENWNX4PVZZU}

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	2026-07-05T03:42:46.065298Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d59599056a8259f32046d9b7e3eb9cd2962bf939e87833cedfee366471998f6

Aliases

arxiv: 2108.07419 · arxiv_version: 2108.07419v2 · doi: 10.48550/arxiv.2108.07419 · pith_short_12: NVMVTECWVASZ · pith_short_16: NVMVTECWVASZ6MQE · pith_short_8: NVMVTECW

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/NVMVTECWVASZ6MQENWNX4PVZZU \
  | 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: 6d59599056a8259f32046d9b7e3eb9cd2962bf939e87833cedfee366471998f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56acc69b551c67cb3015dbec9173556b95701dba08d9634326da67c9fb4ef8ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-08-17T03:07:58Z",
    "title_canon_sha256": "0d2aadf156bd2bf085fcb6588701b7f4bec94583a6bc003ee4a6b40623cc282a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.07419",
    "kind": "arxiv",
    "version": 2
  }
}