Pith Number

pith:RDRPWZ6T

pith:2004:RDRPWZ6TMGUYIZXTJ5ZI5P3HPS

not attested not anchored not stored refs pending

Very high quality factor measured in annealed fused silica

Alexandr Ageev, Antonio De Felice, Belkis Cabrera Palmer, Peter R. Saulson, Steven D. Penn

arxiv:gr-qc/0403105 v1 · 2004-03-25 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RDRPWZ6TMGUYIZXTJ5ZI5P3HPS}

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	2026-07-04T16:47:42.694266Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

88e2fb67d361a98466f34f728ebf677c87ab16fbfc1b73dbfb2367783ee53b2f

Aliases

arxiv: gr-qc/0403105 · arxiv_version: gr-qc/0403105v1 · doi: 10.48550/arxiv.gr-qc/0403105 · pith_short_12: RDRPWZ6TMGUY · pith_short_16: RDRPWZ6TMGUYIZXT · pith_short_8: RDRPWZ6T

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/RDRPWZ6TMGUYIZXTJ5ZI5P3HPS \
  | 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: 88e2fb67d361a98466f34f728ebf677c87ab16fbfc1b73dbfb2367783ee53b2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "355c96a3d3b1c83c5b4fd5180523d905dba543abd1d917512115fe72333cf38b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2004-03-25T16:00:57Z",
    "title_canon_sha256": "ee6ab4a927426d063164ac2d37ac6e1e7eef30efd55e2da321527197d4ad6b51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0403105",
    "kind": "arxiv",
    "version": 1
  }
}