Pith Number

pith:CTUETVM4

pith:2017:CTUETVM4PODTK7RMYERP7DSI7D

not attested not anchored not stored refs pending

Unsupervised feature-learning for galaxy SEDs with denoising autoencoders

Emeric Le Floc'h, Florent Sureau, Jerome Bobin, Joana Frontera-Pons

arxiv:1705.05620 v1 · 2017-05-16 · astro-ph.IM · 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{CTUETVM4PODTK7RMYERP7DSI7D}

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	2026-05-18T00:40:29.930793Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14e849d59c7b87357e2cc122ff8e48f8e8d0c0323e1132237fff432c61186d3e

Aliases

arxiv: 1705.05620 · arxiv_version: 1705.05620v1 · doi: 10.48550/arxiv.1705.05620 · pith_short_12: CTUETVM4PODT · pith_short_16: CTUETVM4PODTK7RM · pith_short_8: CTUETVM4

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/CTUETVM4PODTK7RMYERP7DSI7D \
  | 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: 14e849d59c7b87357e2cc122ff8e48f8e8d0c0323e1132237fff432c61186d3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7298fdd938a4f6b01bfb6ce2004fb0c2d1f0d9bdd4947ed328ffc39be6e3b05c",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2017-05-16T09:55:27Z",
    "title_canon_sha256": "587360823bdff4d2615a6b67e4b6fbc817e20c9679f49b6c1b534e3b6e002fd3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.05620",
    "kind": "arxiv",
    "version": 1
  }
}