Pith Number

pith:FZYRTUG3

pith:2001:FZYRTUG3JYFFXCN4NY4XVPS4ID

not attested not anchored not stored refs pending

Superluminal motions? A bird-eye view of the experimental situation

Erasmo Recami

arxiv:physics/0101108 v1 · 2001-01-31 · physics.pop-ph · physics.class-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{FZYRTUG3JYFFXCN4NY4XVPS4ID}

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	2026-05-18T02:35:07.682151Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e7119d0db4e0a5b89bc6e397abe5c40c77cbc9a77668ec052dd5e5a7115684e

Aliases

arxiv: physics/0101108 · arxiv_version: physics/0101108v1 · doi: 10.48550/arxiv.physics/0101108 · pith_short_12: FZYRTUG3JYFF · pith_short_16: FZYRTUG3JYFFXCN4 · pith_short_8: FZYRTUG3

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/FZYRTUG3JYFFXCN4NY4XVPS4ID \
  | 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: 2e7119d0db4e0a5b89bc6e397abe5c40c77cbc9a77668ec052dd5e5a7115684e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cde378b7f14e8635f12b4562027ed5bc969471f129bbdd1d92d9582212da8c7b",
    "cross_cats_sorted": [
      "physics.class-ph"
    ],
    "license": "",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2001-01-31T03:06:49Z",
    "title_canon_sha256": "a7d7242b1773168def3c99cf11cc3746a2e9cf51a2c75a39a249be0ab824af5d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0101108",
    "kind": "arxiv",
    "version": 1
  }
}