Pith Number

pith:KIBIJW7C

pith:2017:KIBIJW7C2J4KNYU6TNINWQKTQ3

not attested not anchored not stored refs pending

Clues to the Nature of SN 2009ip II: The Continuing Photometric and Spectroscopic Evolution to 1000 Days

Alexei V. Filippenko, Andrew Bigley, Curtis McCully, D. Andrew Howell, Griffin Hosseinzadeh, Iair Arcavi, Jon C. Mauerhan, Melissa L. Graham, Stefano Valenti

arxiv:1704.05868 v1 · 2017-04-19 · 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{KIBIJW7C2J4KNYU6TNINWQKTQ3}

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	2026-05-18T00:43:25.525868Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

520284dbe2d278a6e29e9b50db415386fa066923a0a979f02d2e3541d0fdd6fa

Aliases

arxiv: 1704.05868 · arxiv_version: 1704.05868v1 · doi: 10.48550/arxiv.1704.05868 · pith_short_12: KIBIJW7C2J4K · pith_short_16: KIBIJW7C2J4KNYU6 · pith_short_8: KIBIJW7C

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/KIBIJW7C2J4KNYU6TNINWQKTQ3 \
  | 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: 520284dbe2d278a6e29e9b50db415386fa066923a0a979f02d2e3541d0fdd6fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70943a940d0d1473289d689054acacc802d94094dd0015d0b3854c6bac2849da",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-04-19T18:06:10Z",
    "title_canon_sha256": "00a547235f1e7f7eac8f003ee074266725368e1d960185f502595e62ed72aea0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.05868",
    "kind": "arxiv",
    "version": 1
  }
}