Pith Number

pith:4BD4WAHO

pith:2012:4BD4WAHOZ2OK65TLPVXLOCS5NC

not attested not anchored not stored refs pending

On Spectral Line Profiles in Type Ia Supernova Spectra

Ryan J. Foley

arxiv:1212.6261 v2 · 2012-12-26 · 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{4BD4WAHOZ2OK65TLPVXLOCS5NC}

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	2026-05-18T01:52:23.278575Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e047cb00eece9caf766b7d6eb70a5d688e680e788e159317abdb3c115bc22f8f

Aliases

arxiv: 1212.6261 · arxiv_version: 1212.6261v2 · doi: 10.48550/arxiv.1212.6261 · pith_short_12: 4BD4WAHOZ2OK · pith_short_16: 4BD4WAHOZ2OK65TL · pith_short_8: 4BD4WAHO

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/4BD4WAHOZ2OK65TLPVXLOCS5NC \
  | 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: e047cb00eece9caf766b7d6eb70a5d688e680e788e159317abdb3c115bc22f8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca3f23647d62c8a474c40a2f8a00bcfd69ea2855aa94a9abdc0ec00dafcc65a9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-12-26T21:00:00Z",
    "title_canon_sha256": "4c744b1d253a89e66c6d0a5be85baa98e4b5b0e29295c27d013f2c5cf12ace02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.6261",
    "kind": "arxiv",
    "version": 2
  }
}