Pith Number

pith:NPIEXBDC

pith:2003:NPIEXBDCUNUUTM4XT4MSWSSLOR

not attested not anchored not stored refs pending

A 3D Optical Spectroscopy Study of Low Surface Brightness Galaxies

C. Balkowski, C. Carignan, J. Boulesteix, L. Chemin, M. Marcelin, O. Hernandez, P. Amram, V. Cayatte, W. van Driel

arxiv:astro-ph/0309596 v1 · 2003-09-22 · 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{NPIEXBDCUNUUTM4XT4MSWSSLOR}

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	2026-07-04T14:12:55.169595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bd04b8462a36949b3979f192b4a4b745be59a118f04646490521ce1101e7f2c

Aliases

arxiv: astro-ph/0309596 · arxiv_version: astro-ph/0309596v1 · doi: 10.48550/arxiv.astro-ph/0309596 · pith_short_12: NPIEXBDCUNUU · pith_short_16: NPIEXBDCUNUUTM4X · pith_short_8: NPIEXBDC

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/NPIEXBDCUNUUTM4XT4MSWSSLOR \
  | 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: 6bd04b8462a36949b3979f192b4a4b745be59a118f04646490521ce1101e7f2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4ba70873a60c052a6a416f36c133581d0d4206ff4873a838508e907e64ce3a9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-09-22T19:34:19Z",
    "title_canon_sha256": "74cfff835848191d6c05a46118a8bd66cffce26de07edaff527263efe146e4aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0309596",
    "kind": "arxiv",
    "version": 1
  }
}