Pith Number

pith:RPCRX7OF

pith:2001:RPCRX7OF3KNPUP2CMXZL7DKJMR

not attested not anchored not stored refs pending

The Optical, Infrared and Radio Properties of Extragalactic Sources Observed by SDSS, 2MASS and FIRST Surveys

B. Yanny (for the SDSS), C.M. Rockosi, D.P. Schneider, D. Schlegel, D. Vanden Berk, G.R. Knapp, G.R. Richards, I. Strateva, J.E. Gunn, J. Loveday, K. Finlator, K. Menou, M.A. Strauss, M. Blanton, P. Hall, R.H. Becker, R.H. Lupton, R.S.J. Kim, V. Narayanan, W. Voges, X. Fan, Z. Ivezic

arxiv:astro-ph/0111024 v1 · 2001-11-01 · 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{RPCRX7OF3KNPUP2CMXZL7DKJMR}

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	2026-07-04T23:55:16.666003Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8bc51bfdc5da9afa3f4265f2bf8d496459bdbcf229ff55d1eab391d2f5ae94b0

Aliases

arxiv: astro-ph/0111024 · arxiv_version: astro-ph/0111024v1 · doi: 10.48550/arxiv.astro-ph/0111024 · pith_short_12: RPCRX7OF3KNP · pith_short_16: RPCRX7OF3KNPUP2C · pith_short_8: RPCRX7OF

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/RPCRX7OF3KNPUP2CMXZL7DKJMR \
  | 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: 8bc51bfdc5da9afa3f4265f2bf8d496459bdbcf229ff55d1eab391d2f5ae94b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d680493e52ad1ad3cba7ecab32b41c9f322da258fc18b8c3463f1449667832c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-11-01T19:12:05Z",
    "title_canon_sha256": "fd8a854c36518e80037d2c56f16c1e26c5e9e2a6a09417d93af753a515f81cea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0111024",
    "kind": "arxiv",
    "version": 1
  }
}