Pith Number

pith:2SN6BLV7

pith:2019:2SN6BLV7HO5M2D22ZHRTIX4B5Z

not attested not anchored not stored refs pending

Dark matter and no dark matter: On the halo mass of NGC 1052

Aaron J. Romanowsky, Adebusola Alabi, Duncan A. Forbes, Jean P. Brodie

arxiv:1908.10858 v1 · 2019-08-28 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2SN6BLV7HO5M2D22ZHRTIX4B5Z}

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	2026-07-05T00:06:56.087703Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d49be0aebf3bbacd0f5ac9e3345f81ee46bc76528e1d715bccb2f9c0ba15efd8

Aliases

arxiv: 1908.10858 · arxiv_version: 1908.10858v1 · doi: 10.48550/arxiv.1908.10858 · pith_short_12: 2SN6BLV7HO5M · pith_short_16: 2SN6BLV7HO5M2D22 · pith_short_8: 2SN6BLV7

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/2SN6BLV7HO5M2D22ZHRTIX4B5Z \
  | 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: d49be0aebf3bbacd0f5ac9e3345f81ee46bc76528e1d715bccb2f9c0ba15efd8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21efb4c7384947d63b5ab4bbe3865c6f00123646ccd75deec68792eed94cd9af",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-08-28T17:59:06Z",
    "title_canon_sha256": "e048c9635dbdcfd67d254aee1600b59962c9c0c7ec82a1910cbc191ab6556210"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.10858",
    "kind": "arxiv",
    "version": 1
  }
}