Pith Number

pith:6Y3DN2JK

pith:2019:6Y3DN2JKIFMBRLOIKECTC4AIFI

not attested not anchored not stored refs pending

Probing geometric information using the Unruh effect in the vacuum

Achim Kempf, Aida Ahmadzadegan, Fatemeh Lalegani, Robert B. Mann

arxiv:1902.06745 v2 · 2019-02-18 · gr-qc · hep-th · quant-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{6Y3DN2JKIFMBRLOIKECTC4AIFI}

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	2026-07-05T00:15:35.278931Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f63636e92a415818adc851053170082a3631a20e233027dd2e7dbbc5c50ec2ec

Aliases

arxiv: 1902.06745 · arxiv_version: 1902.06745v2 · doi: 10.48550/arxiv.1902.06745 · pith_short_12: 6Y3DN2JKIFMB · pith_short_16: 6Y3DN2JKIFMBRLOI · pith_short_8: 6Y3DN2JK

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/6Y3DN2JKIFMBRLOIKECTC4AIFI \
  | 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: f63636e92a415818adc851053170082a3631a20e233027dd2e7dbbc5c50ec2ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "720b67a811aa3901e5b9a9b06297dbe6f8497168105f50b7846142702721a4e5",
    "cross_cats_sorted": [
      "hep-th",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-02-18T19:00:00Z",
    "title_canon_sha256": "515d189ccf9be59afd72c83d8d103852f87518e64c16fc0f28ff838a703707a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.06745",
    "kind": "arxiv",
    "version": 2
  }
}