Pith Number

pith:2P7GWIGX

pith:2002:2P7GWIGXACI7CRRRGLCAWW5V4L

not attested not anchored not stored refs pending

Ho Measurement from VLT Deep I-band Surface Brightness Fluctuations in NGC 564 and NGC 7619

D.R. Silva, M. Scodeggio, P.J. Quinn, S. Mei

arxiv:astro-ph/0212262 v1 · 2002-12-11 · 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{2P7GWIGXACI7CRRRGLCAWW5V4L}

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	2026-07-04T16:31:24.200603Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3fe6b20d70091f1463132c40b5bb5e2fc7ecbe75a6fd7b5dd7640d3a7fff779

Aliases

arxiv: astro-ph/0212262 · arxiv_version: astro-ph/0212262v1 · doi: 10.48550/arxiv.astro-ph/0212262 · pith_short_12: 2P7GWIGXACI7 · pith_short_16: 2P7GWIGXACI7CRRR · pith_short_8: 2P7GWIGX

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/2P7GWIGXACI7CRRRGLCAWW5V4L \
  | 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: d3fe6b20d70091f1463132c40b5bb5e2fc7ecbe75a6fd7b5dd7640d3a7fff779

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6997ef8193399d3fb5c1c50b4e22f8fd4fb2661faaf9c98602cef4200b8b7a2d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-12-11T14:05:56Z",
    "title_canon_sha256": "b030be82527707efb68f4eaefb666e20bf7549fb5bedda80d4a7acfddd22cca6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0212262",
    "kind": "arxiv",
    "version": 1
  }
}