Pith Number

pith:HJ4ED7BP

pith:2018:HJ4ED7BP54DRAGJOY2ZXUY2XN4

not attested not anchored not stored refs pending

Fast Point Spread Function Modeling with Deep Learning

Adam Amara, Alexandre Refregier, Aurelien Lucchi (ETH Zurich), J\"org Herbel, Tomasz Kacprzak

arxiv:1801.07615 v2 · 2018-01-23 · astro-ph.IM · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HJ4ED7BP54DRAGJOY2ZXUY2XN4}

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	2026-05-18T00:09:52.688173Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a7841fc2fef0710192ec6b37a63576f1daeb5cbf2a5f45199d28d33586cbb4d

Aliases

arxiv: 1801.07615 · arxiv_version: 1801.07615v2 · doi: 10.48550/arxiv.1801.07615 · pith_short_12: HJ4ED7BP54DR · pith_short_16: HJ4ED7BP54DRAGJO · pith_short_8: HJ4ED7BP

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/HJ4ED7BP54DRAGJOY2ZXUY2XN4 \
  | 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: 3a7841fc2fef0710192ec6b37a63576f1daeb5cbf2a5f45199d28d33586cbb4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "652e3da1e998a735f04f5d25d909c7becf5ea99cc998910a359a71e214b7be8c",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-01-23T15:31:33Z",
    "title_canon_sha256": "0374e0880d327b9c4ad93858748ce9d991e06819400db98973422691147a807e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.07615",
    "kind": "arxiv",
    "version": 2
  }
}