Pith Number

pith:WDSDIPR2

pith:2007:WDSDIPR2JGY2TFSQ3JMXH4C6PJ

not attested not anchored not stored refs pending

Resolved Stellar Populations Constituting Extended UV Disks (XUV-disks) in Nearby Galaxies

A. Ferguson, A. Gil de Paz, B. Madore, C. D. Martin, D. A. Thilker, D. Schiminovich, G. Meurer, L. Bianchi, M. Seibert, R. M. Rich, S. Boissier, S. Hameed, S. Neff, T. Wyder

arxiv:0712.3724 v1 · 2007-12-21 · 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{WDSDIPR2JGY2TFSQ3JMXH4C6PJ}

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	2026-07-04T15:06:26.794634Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0e4343e3a49b1a99650da5973f05e7a5c512b9478cfac3325dcd8f94bddbf28

Aliases

arxiv: 0712.3724 · arxiv_version: 0712.3724v1 · doi: 10.48550/arxiv.0712.3724 · pith_short_12: WDSDIPR2JGY2 · pith_short_16: WDSDIPR2JGY2TFSQ · pith_short_8: WDSDIPR2

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/WDSDIPR2JGY2TFSQ3JMXH4C6PJ \
  | 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: b0e4343e3a49b1a99650da5973f05e7a5c512b9478cfac3325dcd8f94bddbf28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7b4f289003197d59728c1fdf72a9bbdb37414620dc6b8f89bca18381660ce51",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-12-21T15:44:56Z",
    "title_canon_sha256": "5f6ea8d98a875cb89c79347686d53e4adc77a6c49a425c18f3c47b770c06401b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0712.3724",
    "kind": "arxiv",
    "version": 1
  }
}