Pith Number

pith:DL372XWE

pith:2017:DL372XWE5U45YRFDCSWPIQQDM2

not attested not anchored not stored refs pending

Relevance of the weak equivalence principle and experiments to test it: lessons from the past and improvements expected in space

Alberto Anselmi, Anna M. Nobili

arxiv:1709.02768 v2 · 2017-09-08 · 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{DL372XWE5U45YRFDCSWPIQQDM2}

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	2026-05-18T00:09:19.878483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1af7fd5ec4ed39dc44a314acf4420366bd55a8788cb059dee94294df1f8c1b9e

Aliases

arxiv: 1709.02768 · arxiv_version: 1709.02768v2 · doi: 10.48550/arxiv.1709.02768 · pith_short_12: DL372XWE5U45 · pith_short_16: DL372XWE5U45YRFD · pith_short_8: DL372XWE

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/DL372XWE5U45YRFDCSWPIQQDM2 \
  | 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: 1af7fd5ec4ed39dc44a314acf4420366bd55a8788cb059dee94294df1f8c1b9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c99702ed67d9f2e3509675f6862ab6d5a385e79f5601dc54367246400c5bdce1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-09-08T16:38:41Z",
    "title_canon_sha256": "186941a2d6bd3698bf0c8247e7329c1fcfa64003110e00626e5c68df5930842a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.02768",
    "kind": "arxiv",
    "version": 2
  }
}