Pith Number

pith:HJ3OI2DE

pith:2009:HJ3OI2DEFGMWXQNKMB3G6JZXCG

not attested not anchored not stored refs pending

HI Selected Galaxies in the Sloan Digital Sky Survey I: Optical Data

Andrew A. West, Constance M. Rockosi, Diego A. Garcia-Appadoo, J. Brinkmann, Julianne J. Dalcanton, Mike J. Disney, Misty C. Bentz, Zeljko Ivezic

arxiv:0910.4965 v1 · 2009-10-26 · 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{HJ3OI2DEFGMWXQNKMB3G6JZXCG}

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	2026-05-18T02:11:11.253588Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a76e4686429996bc1aa60766f2737119e343105468ce5bda1590db74ac8b55f

Aliases

arxiv: 0910.4965 · arxiv_version: 0910.4965v1 · doi: 10.48550/arxiv.0910.4965 · pith_short_12: HJ3OI2DEFGMW · pith_short_16: HJ3OI2DEFGMWXQNK · pith_short_8: HJ3OI2DE

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/HJ3OI2DEFGMWXQNKMB3G6JZXCG \
  | 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: 3a76e4686429996bc1aa60766f2737119e343105468ce5bda1590db74ac8b55f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ab2ea6281ba555f3d926ef9ff6df2b802fd01872e56f3b61e7c488815455f97",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-10-26T20:00:40Z",
    "title_canon_sha256": "62053f4854d7424eca5b854f41a3fe31f50b2057a43900ca4cc6dedaa2283db6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.4965",
    "kind": "arxiv",
    "version": 1
  }
}