Pith Number

pith:BTXVFPQJ

pith:1996:BTXVFPQJK5TEIFM6RWIFHQX44C

not attested not anchored not stored refs pending

The SBF Survey of Galaxy Distances. I. Sample Selection, Photometric Calibration, and the Hubble Constant

Alan Dressler, Edward A. Ajhar, John L. Tonry, John P. Blakeslee

arxiv:astro-ph/9609113 v1 · 1996-09-17 · 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{BTXVFPQJK5TEIFM6RWIFHQX44C}

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

2 papers in Pith

A Jet from a Nearly Dormant Black Hole

Challenges for $\Lambda$CDM: An update

Receipt and verification

First computed	2026-07-04T16:00:14.872812Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cef52be09576644159e8d9053c2fce08c3bc8615dd2cdb4ca571a7124b58cad

Aliases

arxiv: astro-ph/9609113 · arxiv_version: astro-ph/9609113v1 · doi: 10.48550/arxiv.astro-ph/9609113 · pith_short_12: BTXVFPQJK5TE · pith_short_16: BTXVFPQJK5TEIFM6 · pith_short_8: BTXVFPQJ

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/BTXVFPQJK5TEIFM6RWIFHQX44C \
  | 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: 0cef52be09576644159e8d9053c2fce08c3bc8615dd2cdb4ca571a7124b58cad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81a36575d55f99eb5911c24ba18588d1624d15c5578b397996714a343d6091ea",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-09-17T17:45:41Z",
    "title_canon_sha256": "65d24aa2b51bea72a79dd3290ddaa4020136f4cf7293d4876c18850999e1298c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9609113",
    "kind": "arxiv",
    "version": 1
  }
}