Pith Number

pith:WZK3L6GR

pith:2019:WZK3L6GRFWHYJIWMPCD2MF4BIM

not attested not anchored not stored refs pending

Constraints on the HI Mass of NGC 1052-DF2

Amy Sardone, D.J. Pisano, Joshua L. Mascoop, Nihan Pol, Sarah Burke-Spolaor

arxiv:1901.07586 v1 · 2019-01-22 · 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{WZK3L6GRFWHYJIWMPCD2MF4BIM}

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	2026-05-17T23:45:30.725727Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b655b5f8d12d8f84a2cc7887a61781432364c10408a637dbf3eb40809a5c6182

Aliases

arxiv: 1901.07586 · arxiv_version: 1901.07586v1 · doi: 10.48550/arxiv.1901.07586 · pith_short_12: WZK3L6GRFWHY · pith_short_16: WZK3L6GRFWHYJIWM · pith_short_8: WZK3L6GR

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/WZK3L6GRFWHYJIWMPCD2MF4BIM \
  | 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: b655b5f8d12d8f84a2cc7887a61781432364c10408a637dbf3eb40809a5c6182

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7272b855a6b695a72793d1ef9b8642242d543cc3ee51d3438f1260ce8b6d789",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-01-22T19:11:16Z",
    "title_canon_sha256": "c3a2b3f2f6945f91b0b598015b4bfee5e21eac2c096a3dcc090a2a512ee4c11d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.07586",
    "kind": "arxiv",
    "version": 1
  }
}