Pith Number

pith:UKYVYCHQ

pith:2013:UKYVYCHQELD5INLCAXPNTSF4T7

not attested not anchored not stored refs pending

Terrestrial vs. spaceborne, quantum vs. classical tests of the equivalence principle

Holger Mueller, Michael Hohensee

arxiv:1307.5987 v1 · 2013-07-23 · 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{UKYVYCHQELD5INLCAXPNTSF4T7}

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	2026-05-18T00:37:21.581355Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2b15c08f022c7d4356205ded9c8bc9fddc68acefb3af2ba09111520302ed7f7

Aliases

arxiv: 1307.5987 · arxiv_version: 1307.5987v1 · doi: 10.48550/arxiv.1307.5987 · pith_short_12: UKYVYCHQELD5 · pith_short_16: UKYVYCHQELD5INLC · pith_short_8: UKYVYCHQ

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/UKYVYCHQELD5INLCAXPNTSF4T7 \
  | 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: a2b15c08f022c7d4356205ded9c8bc9fddc68acefb3af2ba09111520302ed7f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d46ec06273a68a6fb8c33351927e2ecc8ca9c7f6a23eb7a20094caf2453a1f3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-07-23T09:13:37Z",
    "title_canon_sha256": "ad22088d84ed76ee14d8c339f25c8c834f851b6c6711475994fa39557d9170ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.5987",
    "kind": "arxiv",
    "version": 1
  }
}