Pith Number

pith:FD2D6Y4W

pith:2008:FD2D6Y4WDQWZ6LHHHQXF6IS7DI

not attested not anchored not stored refs pending

LCDM Satellites and HI Companions - The Arecibo ALFA Survey of NGC 2903

B. Catinella, B. S. Koribalski, E. Brinks, E. Momjian, G. L. Hoffman, J. A. Irwin, J. Davies, K. Spekkens, M. E. Putman, M. P. Haynes, R. Giovanelli, S. M. Linder, W. J. G. de Blok, W. van Driel

arxiv:0810.1090 v1 · 2008-10-07 · 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{FD2D6Y4WDQWZ6LHHHQXF6IS7DI}

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	2026-05-18T04:29:26.249485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28f43f63961c2d9f2ce73c2e5f225f1a326cdead868c7b9ae5e951fdbe98ac78

Aliases

arxiv: 0810.1090 · arxiv_version: 0810.1090v1 · doi: 10.48550/arxiv.0810.1090 · pith_short_12: FD2D6Y4WDQWZ · pith_short_16: FD2D6Y4WDQWZ6LHH · pith_short_8: FD2D6Y4W

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/FD2D6Y4WDQWZ6LHHHQXF6IS7DI \
  | 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: 28f43f63961c2d9f2ce73c2e5f225f1a326cdead868c7b9ae5e951fdbe98ac78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9de15bbc89511cd1afb2dcb879648f374f35eff262352741462c815b2cfe5d32",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-10-07T14:07:09Z",
    "title_canon_sha256": "77f684bd88060e9de21d98b0d42503fa352d20b1a0cfef04d7bd557e57b25bfb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.1090",
    "kind": "arxiv",
    "version": 1
  }
}