Pith Number

pith:TNGVGFB4

pith:2013:TNGVGFB4NVFSXGZR5D6TSQRN4O

not attested not anchored not stored refs pending

A Precision Multi-Band Two-Epoch Photometric Catalog of 44 Million Sources in the Northern Sky from Combination of the USNO-B and Sloan Digital Sky Survey Catalogs

B.M. Gaensler, G.J. Madsen

arxiv:1309.6322 v2 · 2013-09-24 · astro-ph.GA · astro-ph.CO · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TNGVGFB4NVFSXGZR5D6TSQRN4O}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T03:05:37.530420Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b4d53143c6d4b2b9b31e8fd39422de3bb4fd283353309e3eb2b181c2a300091

Aliases

arxiv: 1309.6322 · arxiv_version: 1309.6322v2 · doi: 10.48550/arxiv.1309.6322 · pith_short_12: TNGVGFB4NVFS · pith_short_16: TNGVGFB4NVFSXGZR · pith_short_8: TNGVGFB4

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/TNGVGFB4NVFSXGZR5D6TSQRN4O \
  | 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: 9b4d53143c6d4b2b9b31e8fd39422de3bb4fd283353309e3eb2b181c2a300091

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5906fdb5bfabc1494984952d3abcbec5ea9f4c39eb9d65665fd102809e07e2db",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-09-24T20:00:04Z",
    "title_canon_sha256": "6740bdf2f680782bbdc174eab25b3046372f9dbe77b1dc2aa2183ff61107c760"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.6322",
    "kind": "arxiv",
    "version": 2
  }
}