Pith Number

pith:W4LPUDR5

pith:2016:W4LPUDR5CWYCNBZNYMPWSHKNQU

not attested not anchored not stored refs pending

Dark Matter in the Local Group of Galaxies

D. J. Buettner, P.D. Morley

arxiv:1701.00444 v1 · 2016-12-15 · physics.gen-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W4LPUDR5CWYCNBZNYMPWSHKNQU}

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	2026-05-18T00:52:29.199368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b716fa0e3d15b026872dc31f691d4d852ed408659d5e6d0f37dd7ab62eab4b10

Aliases

arxiv: 1701.00444 · arxiv_version: 1701.00444v1 · doi: 10.48550/arxiv.1701.00444 · pith_short_12: W4LPUDR5CWYC · pith_short_16: W4LPUDR5CWYCNBZN · pith_short_8: W4LPUDR5

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/W4LPUDR5CWYCNBZNYMPWSHKNQU \
  | 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: b716fa0e3d15b026872dc31f691d4d852ed408659d5e6d0f37dd7ab62eab4b10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a34e6da0165fa43f51dc6e03795c4f5642fa8513d764ad317ed1ec18e2c931d8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2016-12-15T00:09:31Z",
    "title_canon_sha256": "128462a208f91587191a7ce9806e6e00f592f0c252b8c7cf81eabbc36508af0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.00444",
    "kind": "arxiv",
    "version": 1
  }
}