Pith Number

pith:FUWVQUY2

pith:2026:FUWVQUY2UVBYNAPSU7AEQUF53U

not attested not anchored not stored refs pending

Expected redshift drift for tilted observers

Franco R. de Pedro, Gabriel R. Bengochea

arxiv:2605.16426 v1 · 2026-05-14 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FUWVQUY2UVBYNAPSU7AEQUF53U}

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	2026-05-20T00:02:21.618279Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d2d58531aa5438681f2a7c04850bddd238376f261896d0e2b164c1d213f95d0

Aliases

arxiv: 2605.16426 · arxiv_version: 2605.16426v1 · doi: 10.48550/arxiv.2605.16426 · pith_short_12: FUWVQUY2UVBY · pith_short_16: FUWVQUY2UVBYNAPS · pith_short_8: FUWVQUY2

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/FUWVQUY2UVBYNAPSU7AEQUF53U \
  | 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: 2d2d58531aa5438681f2a7c04850bddd238376f261896d0e2b164c1d213f95d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "078269a03682cd0a8d8e97742d2d4730a18ab641605f10a9cab5a7e8ab744dcd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2026-05-14T15:49:19Z",
    "title_canon_sha256": "8a7a446440f12566778515c12acd47a56e7a33c32ce3394ddb34ff200f5044be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.16426",
    "kind": "arxiv",
    "version": 1
  }
}