Pith Number

pith:XT3U2MOE

pith:2016:XT3U2MOEA3ZFPZKLSPDYELRL3A

not attested not anchored not stored refs pending

Ultraviolet Diversity of Type Ia Supernovae

A. V. Filippenko, G. H. Marion, G. Pignata, J. T. Parrent, M. D. Stritzinger, O. D. Fox, P. A. Milne, P. Brown, R. P. Kirshner, Ryan J. Foley, W. Hillebrandt, Yen-Chen Pan

arxiv:1604.01021 v1 · 2016-04-04 · astro-ph.HE · astro-ph.CO · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XT3U2MOEA3ZFPZKLSPDYELRL3A}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:10:30.707776Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bcf74d31c406f257e54b93c7822e2bd8094506bc48d606b50c75e08ab81edd35

Aliases

arxiv: 1604.01021 · arxiv_version: 1604.01021v1 · doi: 10.48550/arxiv.1604.01021 · pith_short_12: XT3U2MOEA3ZF · pith_short_16: XT3U2MOEA3ZFPZKL · pith_short_8: XT3U2MOE

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/XT3U2MOEA3ZFPZKLSPDYELRL3A \
  | 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: bcf74d31c406f257e54b93c7822e2bd8094506bc48d606b50c75e08ab81edd35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4edd26b28fe232160a1614efffded07c77b1be8b5547d0ba3349d4cd5c6f4c72",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-04-04T20:00:00Z",
    "title_canon_sha256": "607ea76ca2520170f49d1ee71af5684a6b454543bbfe6fecab554be1c4dccdf8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.01021",
    "kind": "arxiv",
    "version": 1
  }
}