Pith Number

pith:PPZMKYKD

pith:2015:PPZMKYKDSSNJW3XT7PWUVW5ICD

not attested not anchored not stored refs pending

Line Identifications of Type I Supernovae: On the Detection of Si II for these Hydrogen-poor Events

A. M. Soderberg, D. Milisavljevic, J. T. Parrent, M. Parthasarathy

arxiv:1505.06645 v2 · 2015-05-25 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PPZMKYKDSSNJW3XT7PWUVW5ICD}

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	2026-05-18T01:17:43.986755Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bf2c56143949a9b6ef3fbed4adba810c1cc5fa13406d85ffcefffb33d4f057f

Aliases

arxiv: 1505.06645 · arxiv_version: 1505.06645v2 · doi: 10.48550/arxiv.1505.06645 · pith_short_12: PPZMKYKDSSNJ · pith_short_16: PPZMKYKDSSNJW3XT · pith_short_8: PPZMKYKD

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/PPZMKYKDSSNJW3XT7PWUVW5ICD \
  | 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: 7bf2c56143949a9b6ef3fbed4adba810c1cc5fa13406d85ffcefffb33d4f057f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e82b8e7fcd1f06efcfbcb7e59b5acb7bf92e7db48d77a4380eb701079ec5db69",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-05-25T14:36:46Z",
    "title_canon_sha256": "c64c4b3da9d8d20bc86b310e2dca2cc9970e4a33b5c1774ca85ab7f775da0137"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.06645",
    "kind": "arxiv",
    "version": 2
  }
}