Pith Number

pith:WI4H7KLJ

pith:2017:WI4H7KLJ2NZO5FA6SL4DR5ABVA

not attested not anchored not stored refs pending

The science of short exposures: Hubble SNAPshot observations of massive galaxy clusters

Andrew Repp, Harald Ebeling

arxiv:1706.01263 v3 · 2017-06-05 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WI4H7KLJ2NZO5FA6SL4DR5ABVA}

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	2026-05-18T00:09:39.521506Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2387fa969d372ee941e92f838f401a80d88b46622f0ebe7a45a6db1864735b9

Aliases

arxiv: 1706.01263 · arxiv_version: 1706.01263v3 · doi: 10.48550/arxiv.1706.01263 · pith_short_12: WI4H7KLJ2NZO · pith_short_16: WI4H7KLJ2NZO5FA6 · pith_short_8: WI4H7KLJ

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/WI4H7KLJ2NZO5FA6SL4DR5ABVA \
  | 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: b2387fa969d372ee941e92f838f401a80d88b46622f0ebe7a45a6db1864735b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8aad044f13c204d0ed2f491ff4afef5bf14b3bfb04029e5450b450e6ec6d182e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-06-05T10:42:17Z",
    "title_canon_sha256": "3c297927ad9311c84616462eca65a584d73fdc4693cbd3fb9092f88b42ca79c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.01263",
    "kind": "arxiv",
    "version": 3
  }
}