Pith Number

pith:VBXDOI63

pith:2021:VBXDOI63HAD54UUSCBNF2X4VBG

not attested not anchored not stored refs pending

A Census of the Extended Neutral Hydrogen Around 18 MHONGOOSE Galaxies

Amidou Sorgho, Amy Sardone, Claude Carignan, D.J. Pisano, N. M. Pingel, W.J.G. de Blok

arxiv:2101.07822 v1 · 2021-01-19 · 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{VBXDOI63HAD54UUSCBNF2X4VBG}

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	2026-07-05T02:29:42.533997Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a86e3723db3807de5292105a5d5f9509a3217844240c0572cc461301100df12e

Aliases

arxiv: 2101.07822 · arxiv_version: 2101.07822v1 · doi: 10.48550/arxiv.2101.07822 · pith_short_12: VBXDOI63HAD5 · pith_short_16: VBXDOI63HAD54UUS · pith_short_8: VBXDOI63

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/VBXDOI63HAD54UUSCBNF2X4VBG \
  | 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: a86e3723db3807de5292105a5d5f9509a3217844240c0572cc461301100df12e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85b10c83fdcd61ebe5c0de30f537dc5d8615f7d8fe19f21c1e0b6d404f298c1f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-01-19T19:10:22Z",
    "title_canon_sha256": "101d1cb5832440a0cdcb3dcc4e5ce22e0448b852863e1e419eb95f526c856de1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.07822",
    "kind": "arxiv",
    "version": 1
  }
}