Pith Number

pith:CYVCCBU6

pith:2015:CYVCCBU6K7HXXX5VJ5LKKXHYDC

not attested not anchored not stored refs pending

Searching for light echoes due to CSM in SN Ia spectra

Eric Hsiao, Francisco F\"orster, Gast\'on Folatelli, Mario Hamuy, Santiago Gonz\'alez-Gait\'an, Sebasti\'an Marino

arxiv:1504.06845 v1 · 2015-04-26 · astro-ph.HE · astro-ph.CO · 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{CYVCCBU6K7HXXX5VJ5LKKXHYDC}

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	2026-05-18T02:17:44.256126Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

162a21069e57cf7bdfb54f56a55cf818b437a4408b4ceeb94a80650f9164e928

Aliases

arxiv: 1504.06845 · arxiv_version: 1504.06845v1 · doi: 10.48550/arxiv.1504.06845 · pith_short_12: CYVCCBU6K7HX · pith_short_16: CYVCCBU6K7HXXX5V · pith_short_8: CYVCCBU6

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/CYVCCBU6K7HXXX5VJ5LKKXHYDC \
  | 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: 162a21069e57cf7bdfb54f56a55cf818b437a4408b4ceeb94a80650f9164e928

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ed7ae1ee806680716df1d060bb5cf268e1553e4bc7b8b391c1104d1443c6cad",
    "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": "2015-04-26T16:50:09Z",
    "title_canon_sha256": "034ac749e2d74a13b16510fe5c20383d8778acace2f47c9c189f70c1aba2812d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.06845",
    "kind": "arxiv",
    "version": 1
  }
}