Pith Number

pith:NPSTFGFR

pith:2001:NPSTFGFRP2E3ZGD3OYTGARFG5O

not attested not anchored not stored refs pending

DIRECT Distances to Nearby Galaxies Using Detached Eclipsing Binaries and Cepheids. VIII. Additional Variables in the Field M33B Discovered with Image Subtraction

A. H. Szentgyorgyi, B. J. Mochejska, D. D. Sasselov, J. Kaluzny, K. Z. Stanek

arxiv:astro-ph/0107279 v1 · 2001-07-16 · 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{NPSTFGFRP2E3ZGD3OYTGARFG5O}

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	2026-07-04T16:23:42.709267Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6be53298b17e89bc987b76266044a6ebb110a27741ed0b72b3cece5dc4e2e38a

Aliases

arxiv: astro-ph/0107279 · arxiv_version: astro-ph/0107279v1 · doi: 10.48550/arxiv.astro-ph/0107279 · pith_short_12: NPSTFGFRP2E3 · pith_short_16: NPSTFGFRP2E3ZGD3 · pith_short_8: NPSTFGFR

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/NPSTFGFRP2E3ZGD3OYTGARFG5O \
  | 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: 6be53298b17e89bc987b76266044a6ebb110a27741ed0b72b3cece5dc4e2e38a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a254b28b9d1021219e1aee42dda87e1cd0b3a06efb0dd78001f3d58125bbe2a9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-07-16T16:15:47Z",
    "title_canon_sha256": "01bc7d9da76d9be10fb3e9d5f4d60446f09136f2dd697a4d02f225914e67097d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0107279",
    "kind": "arxiv",
    "version": 1
  }
}