Pith Number

pith:ZDUU72DP

pith:2019:ZDUU72DP5IYERYY4MNZFCVIXSW

not attested not anchored not stored refs pending

How compact stars challenge our view about dark matter

Grigoris Panotopoulos

arxiv:1910.02279 v2 · 2019-10-05 · gr-qc · astro-ph.CO · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZDUU72DP5IYERYY4MNZFCVIXSW}

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	2026-07-05T00:14:54.892636Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8e94fe86fea3048e31c6372515517959e439044b30b76dbe9a3a75dbc0ec00f

Aliases

arxiv: 1910.02279 · arxiv_version: 1910.02279v2 · doi: 10.48550/arxiv.1910.02279 · pith_short_12: ZDUU72DP5IYE · pith_short_16: ZDUU72DP5IYERYY4 · pith_short_8: ZDUU72DP

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/ZDUU72DP5IYERYY4MNZFCVIXSW \
  | 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: c8e94fe86fea3048e31c6372515517959e439044b30b76dbe9a3a75dbc0ec00f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f056b78c9a37b0c3910fa8bdc8d3d7cec1133d26c84254da54f1cdbad693cd98",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-10-05T14:46:33Z",
    "title_canon_sha256": "50b6a826e5c6311b5a13ebc2ebdbac98d0af6bf74f3d6c1d11f985f41e97e281"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.02279",
    "kind": "arxiv",
    "version": 2
  }
}