Pith Number

pith:VYXFFDL4

pith:2007:VYXFFDL4YP6MFKWEB3AZCLRGPW

not attested not anchored not stored refs pending

Direct Analysis of Spectra of the Unusual Type Ib Supernova 2005bf

Alexei V. Filippenko, David Branch, David J. Jeffery, D. Casebeer, E. Baron, F. J. D. Serduke, Jerod Parrent, M. A. Troxel, W. Ketchum

arxiv:astro-ph/0701198 v1 · 2007-01-08 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VYXFFDL4YP6MFKWEB3AZCLRGPW}

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.

Cited by

1 paper in Pith

SN 2023rve: A Type II Supernova with No Nebular Oxygen

Receipt and verification

First computed	2026-07-04T17:07:24.812522Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae2e528d7cc3fcc2aac40ec1912e267d94c7f170261fb7334e0f57058b04be8b

Aliases

arxiv: astro-ph/0701198 · arxiv_version: astro-ph/0701198v1 · doi: 10.48550/arxiv.astro-ph/0701198 · pith_short_12: VYXFFDL4YP6M · pith_short_16: VYXFFDL4YP6MFKWE · pith_short_8: VYXFFDL4

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/VYXFFDL4YP6MFKWEB3AZCLRGPW \
  | 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: ae2e528d7cc3fcc2aac40ec1912e267d94c7f170261fb7334e0f57058b04be8b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f283019acf6a812bd8feee9d2af27ebbd354456577fbefc0ad12c79b8c791205",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-01-08T15:43:06Z",
    "title_canon_sha256": "39bc577fb0df14f2cc89b34f87c3f090548464708ef2dfab953e382c30847afd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0701198",
    "kind": "arxiv",
    "version": 1
  }
}