Pith Number

pith:6IRMLYMA

pith:2021:6IRMLYMA3LBOF6USETSBORHQML

not attested not anchored not stored refs pending

Analysis of the timing of freely falling antihydrogen

Olivier Rousselle, Pierre Clad\'e, Romain Gu\'erout, Sa\"ida Guellati-Kh\'elifa, Serge Reynaud

arxiv:2111.02815 v1 · 2021-11-04 · physics.atom-ph · 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{6IRMLYMA3LBOF6USETSBORHQML}

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	2026-07-05T04:09:58.988775Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f222c5e180dac2e2fa9224e41744f062f4a9630836ab4159a1a2b49f47930633

Aliases

arxiv: 2111.02815 · arxiv_version: 2111.02815v1 · doi: 10.48550/arxiv.2111.02815 · pith_short_12: 6IRMLYMA3LBO · pith_short_16: 6IRMLYMA3LBOF6US · pith_short_8: 6IRMLYMA

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/6IRMLYMA3LBOF6USETSBORHQML \
  | 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: f222c5e180dac2e2fa9224e41744f062f4a9630836ab4159a1a2b49f47930633

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4ca6a8b7f646d91ac04a4aeff2681d2142b343e607c06b8c8f9299c8156d57b",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2021-11-04T12:28:40Z",
    "title_canon_sha256": "ae9bc33dd01ed9362d57ea2eb9123dbd72746dddb3aef902d4da27feff3cf9d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.02815",
    "kind": "arxiv",
    "version": 1
  }
}