Pith Number

pith:DOTWDTZB

pith:2012:DOTWDTZBUE6MMOHMPKXSGH4745

not attested not anchored not stored refs pending

Hydrogen volume densities in nearby galaxies I - an automated approach

J. H. Knapen, J. R. S\'anchez-Gallego, J. S. Heiner, L. Rousseau-Nepton

arxiv:1210.6409 v2 · 2012-10-24 · 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{DOTWDTZBUE6MMOHMPKXSGH4745}

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	2026-05-18T01:53:43.959150Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ba761cf21a13cc638ec7aaf231f9fe7645cc10bc5b947980c3912a8cc680564

Aliases

arxiv: 1210.6409 · arxiv_version: 1210.6409v2 · doi: 10.48550/arxiv.1210.6409 · pith_short_12: DOTWDTZBUE6M · pith_short_16: DOTWDTZBUE6MMOHM · pith_short_8: DOTWDTZB

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/DOTWDTZBUE6MMOHMPKXSGH4745 \
  | 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: 1ba761cf21a13cc638ec7aaf231f9fe7645cc10bc5b947980c3912a8cc680564

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "151e788d9ab0ac99893ca6a2811718653e22f6b362216e4449689c79172b7591",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-10-24T00:14:05Z",
    "title_canon_sha256": "d8aa34384f8af29ae00c6b74355357491a6669fefe4215bfb8e1edbe842f95c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.6409",
    "kind": "arxiv",
    "version": 2
  }
}