Pith Number

pith:QLKEJZ4L

pith:1997:QLKEJZ4LT6IL2VLJJGPQS64GFG

not attested not anchored not stored refs pending

Infrared and Optical Spectroscopy of Type Ia Supernovae in the Nebular Phase

E. J. C. Bowers, M. K. Harrop-Allin, N. A. Walton, P. A. Pinto, S. B. Howell, T. R. Geballe, V. S. Dhillon, W. P. S. Meikle

arxiv:astro-ph/9707119 v1 · 1997-07-10 · 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{QLKEJZ4LT6IL2VLJJGPQS64GFG}

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	2026-05-18T01:40:17.080960Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82d444e78b9f90bd5569499f097b8629acfaaa69d32086990c811f2c0ce5b183

Aliases

arxiv: astro-ph/9707119 · arxiv_version: astro-ph/9707119v1 · doi: 10.48550/arxiv.astro-ph/9707119 · pith_short_12: QLKEJZ4LT6IL · pith_short_16: QLKEJZ4LT6IL2VLJ · pith_short_8: QLKEJZ4L

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/QLKEJZ4LT6IL2VLJJGPQS64GFG \
  | 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: 82d444e78b9f90bd5569499f097b8629acfaaa69d32086990c811f2c0ce5b183

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbefc8c78e661d6a16467f5cef84a32b2fb09f7c50549ffad264aa912a1ecd5b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-07-10T11:30:36Z",
    "title_canon_sha256": "b6d3166061bbded9ac5221265635911d9ebb2d96d80d10e7f2c331accb20b52c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9707119",
    "kind": "arxiv",
    "version": 1
  }
}