Pith Number

pith:YOI24NZF

pith:2018:YOI24NZFAOIVDYUZIIKM6UUG44

not attested not anchored not stored refs pending

Understanding Type Ia supernovae through their U-band spectra

A. Kim, B. Hayden, C. Aragon, C. Baltay, C. Buton, C. Saunders, C. Sofiatti, C. Tao, D. Fouchez, D. Kuesters, D. Rabinowitz, D. Rubin, E. Gangler, E. Pecontal, G. Aldering, G. Smadja, J. Nordin, K. Barbary, K. Boone, K. Runge, M. Childress, M. Kowalski, M. Rigault, N. Chotard, N. Suzuki, P. Antilogus, P. Fagrelius, P.-F. Leget, Q. Lin, R. C. Thomas (The Nearby Supernova Factory), R. Pain, R. Pereira, S. Bailey, S. Bongard, S. Dixon, S. Lombardo, S. Perlmutter, S. Taubenberger, U. Feindt, V. Brinnel, W. Hillebrandt, Y. Copin

arxiv:1801.01834 v1 · 2018-01-04 · astro-ph.HE · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YOI24NZFAOIVDYUZIIKM6UUG44}

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	2026-05-18T00:12:53.624933Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c391ae3725039151e2994214cf5286e734b8238ac3fbee030ddbccf313014370

Aliases

arxiv: 1801.01834 · arxiv_version: 1801.01834v1 · doi: 10.48550/arxiv.1801.01834 · pith_short_12: YOI24NZFAOIV · pith_short_16: YOI24NZFAOIVDYUZ · pith_short_8: YOI24NZF

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/YOI24NZFAOIVDYUZIIKM6UUG44 \
  | 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: c391ae3725039151e2994214cf5286e734b8238ac3fbee030ddbccf313014370

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "135eb2a87d91ff089992ebce486959073037f6a320931600f00a377133033cfa",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-01-04T00:37:32Z",
    "title_canon_sha256": "9f55cd6e58a81bb2e1e13f1d4d90f5cbbad0b0814c15e9729b56013d0a93af90"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.01834",
    "kind": "arxiv",
    "version": 1
  }
}