Pith Number

pith:B73MHUXJ

pith:2008:B73MHUXJUMNM4LXEWDL2GTT4P3

not attested not anchored not stored refs pending

The Discovery of Water Maser Emission from Eight Nearby Galaxies

(2) University of Virginia), J. A. Braatz (1), N. E. Gugliucci (2) ((1) National Radio Astronomy Observatory

arxiv:0804.4136 v1 · 2008-04-25 · astro-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{B73MHUXJUMNM4LXEWDL2GTT4P3}

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	2026-05-18T04:36:41.296521Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ff6c3d2e9a31ace2ee4b0d7a34e7c7eca7036e46910c278183ec96c2ebe4e08

Aliases

arxiv: 0804.4136 · arxiv_version: 0804.4136v1 · doi: 10.48550/arxiv.0804.4136 · pith_short_12: B73MHUXJUMNM · pith_short_16: B73MHUXJUMNM4LXE · pith_short_8: B73MHUXJ

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/B73MHUXJUMNM4LXEWDL2GTT4P3 \
  | 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: 0ff6c3d2e9a31ace2ee4b0d7a34e7c7eca7036e46910c278183ec96c2ebe4e08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d688f04c1f7cca06add5bdf2eec3099633885d0ac6c24a472d4fd59b3292185d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-04-25T15:55:41Z",
    "title_canon_sha256": "ef8fb91aa1a76e45b8db2be19f282ef7337fc93d6b8462526799f99b0a36860b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.4136",
    "kind": "arxiv",
    "version": 1
  }
}