Pith Number

pith:4FYNC7H2

pith:2004:4FYNC7H2RRVGVBFQWOYQLYCURQ

not attested not anchored not stored refs pending

Variable Faint Optical Sources Discovered by Comparing POSS and SDSS Catalogs

B.Sesar, C. Rockosi, D.E. Johnston, D.E. Vanden Berk, D. Finkbeiner, D.P. Schneider, D. Schlegel, D. Svilkovic, G.R. Knapp, J.A. Munn, J.E. Gunn, P. Hall, R.H. Lupton, R.J. Brunner, R. Siverd, W. Steinhardt, Z. Ivezic

arxiv:astro-ph/0403319 v1 · 2004-03-12 · 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{4FYNC7H2RRVGVBFQWOYQLYCURQ}

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	2026-07-04T15:26:26.041088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e170d17cfa8c6a6a84b0b3b105e0548c22326a44aa8fb54283493b683f8bf095

Aliases

arxiv: astro-ph/0403319 · arxiv_version: astro-ph/0403319v1 · doi: 10.48550/arxiv.astro-ph/0403319 · pith_short_12: 4FYNC7H2RRVG · pith_short_16: 4FYNC7H2RRVGVBFQ · pith_short_8: 4FYNC7H2

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/4FYNC7H2RRVGVBFQWOYQLYCURQ \
  | 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: e170d17cfa8c6a6a84b0b3b105e0548c22326a44aa8fb54283493b683f8bf095

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9232d4579c7c07a46fc40f79c68e936866e036c2c9b0d7655a6d269afc4c9705",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-03-12T23:30:19Z",
    "title_canon_sha256": "dfc633f092e138920e7ba3e7d8bfb8b26823473664b17b7c327734791dd882e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0403319",
    "kind": "arxiv",
    "version": 1
  }
}