Pith Number

pith:XBL4ESGQ

pith:2001:XBL4ESGQSH5XD7ECVGJL5CR5J6

not attested not anchored not stored refs pending

Hidden star-formation in the cluster of galaxies Abell 1689

A. Franceschini, A. Moorwood, B. Poggianti, C. Cesarsky, D. Fadda. D. Elbaz, H. Flores, P.-A. Duc, P. Chanial

arxiv:astro-ph/0112249 v1 · 2001-12-11 · 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{XBL4ESGQSH5XD7ECVGJL5CR5J6}

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	2026-07-04T16:24:44.520940Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b857c248d091fb71fc82a992be8a3d4f9c75cb6fe07dbfb2d4d4e99edb8eb8d1

Aliases

arxiv: astro-ph/0112249 · arxiv_version: astro-ph/0112249v1 · doi: 10.48550/arxiv.astro-ph/0112249 · pith_short_12: XBL4ESGQSH5X · pith_short_16: XBL4ESGQSH5XD7EC · pith_short_8: XBL4ESGQ

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/XBL4ESGQSH5XD7ECVGJL5CR5J6 \
  | 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: b857c248d091fb71fc82a992be8a3d4f9c75cb6fe07dbfb2d4d4e99edb8eb8d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22a88aa96d23c422d4eb3a234a72583fe8bb90016544c2fb49ef0fd733c4b746",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-12-11T16:56:17Z",
    "title_canon_sha256": "e3d82b4b52745afbbecaa40e084eed64e6365debbc1a0e423921ff72a9071486"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0112249",
    "kind": "arxiv",
    "version": 1
  }
}