Pith Number

pith:V3BPP2UO

pith:2018:V3BPP2UODRMRM4YFFGUWXMVNAF

not attested not anchored not stored refs pending

Current velocity data on dwarf galaxy NGC1052-DF2 do not constrain it to lack dark matter

Erik Tollerud, Michelle L. M. Collins, Nicolas F. Martin, Nicolas Longeard

arxiv:1804.04136 v2 · 2018-04-11 · 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{V3BPP2UODRMRM4YFFGUWXMVNAF}

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	2026-05-18T00:15:14.587667Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aec2f7ea8e1c5916730529a96bb2ad014aa0d368c5f95a33a18e48e22b0fedc0

Aliases

arxiv: 1804.04136 · arxiv_version: 1804.04136v2 · doi: 10.48550/arxiv.1804.04136 · pith_short_12: V3BPP2UODRMR · pith_short_16: V3BPP2UODRMRM4YF · pith_short_8: V3BPP2UO

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/V3BPP2UODRMRM4YFFGUWXMVNAF \
  | 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: aec2f7ea8e1c5916730529a96bb2ad014aa0d368c5f95a33a18e48e22b0fedc0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2f9080e206f446c27c304cd7fe7f1222dc481ecd843a897d579940f0b6e48bd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-04-11T18:00:02Z",
    "title_canon_sha256": "c355e0b879ced934b1c46c4585bd4cfe964646a8b20816788e371725ffbf0af6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.04136",
    "kind": "arxiv",
    "version": 2
  }
}