Pith Number

pith:5EIS4OSZ

pith:1998:5EIS4OSZWFE3HPPLKCLFAWENMG

not attested not anchored not stored refs pending

Type Ia Supernovae and the Hubble Constant

D. Branch (U. of Oklahoma)

arxiv:astro-ph/9801065 v1 · 1998-01-08 · 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{5EIS4OSZWFE3HPPLKCLFAWENMG}

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	2026-07-04T16:06:04.270031Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9112e3a59b149b3bdeb509650588d61abfbbae3b5ff7959cfa39b4dd561769d

Aliases

arxiv: astro-ph/9801065 · arxiv_version: astro-ph/9801065v1 · doi: 10.48550/arxiv.astro-ph/9801065 · pith_short_12: 5EIS4OSZWFE3 · pith_short_16: 5EIS4OSZWFE3HPPL · pith_short_8: 5EIS4OSZ

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/5EIS4OSZWFE3HPPLKCLFAWENMG \
  | 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: e9112e3a59b149b3bdeb509650588d61abfbbae3b5ff7959cfa39b4dd561769d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a29e93e4ffd40fd756ed529f1fd6651f13cacfeea6e0a8e9cd2f1d477add31d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-01-08T20:48:28Z",
    "title_canon_sha256": "887c1742647a7ee8b09d856775d68f73cb238611775da1777b663509c60e7577"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9801065",
    "kind": "arxiv",
    "version": 1
  }
}