Pith Number

pith:HMRMX44O

pith:2013:HMRMX44OISWLU42IOP4RBWDUXX

not attested not anchored not stored refs pending

[OI] 6300,6364 in the nebular spectrum of a subluminous Type Ia supernova

B. Leibundgut, G. Pignata, K. Maeda, M. Kromer, R. Pakmor, S. Hachinger, S. Taubenberger, W. Hillebrandt

arxiv:1308.3145 v2 · 2013-08-14 · 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{HMRMX44OISWLU42IOP4RBWDUXX}

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	2026-05-18T01:48:15.557258Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b22cbf38e44acba734873f910d874bdc4b1202204fd3461c9e181679da87ba3

Aliases

arxiv: 1308.3145 · arxiv_version: 1308.3145v2 · doi: 10.48550/arxiv.1308.3145 · pith_short_12: HMRMX44OISWL · pith_short_16: HMRMX44OISWLU42I · pith_short_8: HMRMX44O

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/HMRMX44OISWLU42IOP4RBWDUXX \
  | 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: 3b22cbf38e44acba734873f910d874bdc4b1202204fd3461c9e181679da87ba3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d16d908dc3cc515b515cb52b3a73fd62307263d7bdfdbcde31c62f71af543087",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-08-14T14:53:44Z",
    "title_canon_sha256": "7240d0801b199bd3fc070d8911558184f8ebb7b50ef9eeb6da4980e73dfe2675"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.3145",
    "kind": "arxiv",
    "version": 2
  }
}