Pith Number

pith:NR7ELGU2

pith:2022:NR7ELGU2VLWWB44IT767Z3ZZWH

not attested not anchored not stored refs pending

Cosmicflows-4: The Baryonic Tully-Fisher Relation Providing ~10,000 Distances

Alexandra Dupuy, Daniel Guinet, Ehsan Kourkchi, Helene M. Courtois, R. Brent Tully

arxiv:2201.13023 v1 · 2022-01-31 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NR7ELGU2VLWWB44IT767Z3ZZWH}

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	2026-07-05T03:57:21.787903Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c7e459a9aaaed60f3889ffdfcef39b1c66f79bc4ebf6b63fe11732a3eb3358d

Aliases

arxiv: 2201.13023 · arxiv_version: 2201.13023v1 · doi: 10.48550/arxiv.2201.13023 · pith_short_12: NR7ELGU2VLWW · pith_short_16: NR7ELGU2VLWWB44I · pith_short_8: NR7ELGU2

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/NR7ELGU2VLWWB44IT767Z3ZZWH \
  | 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: 6c7e459a9aaaed60f3889ffdfcef39b1c66f79bc4ebf6b63fe11732a3eb3358d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8eee2f43055870020f590354e9adbd08b80d874328c8f2101b0b9e37628f8a44",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-01-31T06:58:00Z",
    "title_canon_sha256": "6fc759c12d605b299ba7f887bedf12cb805a54ad76b786c2cc1eea3607b0f9d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.13023",
    "kind": "arxiv",
    "version": 1
  }
}