Pith Number

pith:I7BLL3P3

pith:2008:I7BLL3P3GMO3YJGMIAYYVB5DA4

not attested not anchored not stored refs pending

Mapping the Cosmological Expansion

Eric V. Linder

arxiv:0801.2968 v2 · 2008-01-18 · 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{I7BLL3P3GMO3YJGMIAYYVB5DA4}

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

Study of dark interactions through strong gravitational lenses

Receipt and verification

First computed	2026-07-04T15:44:39.476502Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47c2b5edfb331dbc24cc40318a87a30730ce981b7000170a0ee5441cfb5d79de

Aliases

arxiv: 0801.2968 · arxiv_version: 0801.2968v2 · doi: 10.48550/arxiv.0801.2968 · pith_short_12: I7BLL3P3GMO3 · pith_short_16: I7BLL3P3GMO3YJGM · pith_short_8: I7BLL3P3

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/I7BLL3P3GMO3YJGMIAYYVB5DA4 \
  | 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: 47c2b5edfb331dbc24cc40318a87a30730ce981b7000170a0ee5441cfb5d79de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3d47069e373a77ed53b3165915dc823308dacdda0fac3be27aaa683c06cd4ef",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-01-18T21:00:08Z",
    "title_canon_sha256": "56eca6a0fe4585472d5474fa7e334da61d5a8b9373e43d447dda93f78754f3d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.2968",
    "kind": "arxiv",
    "version": 2
  }
}