Pith Number

pith:Y6U7HDQB

pith:2021:Y6U7HDQBNDBOREFIFAXV2UTRNK

not attested not anchored not stored refs pending

Energy in Newtonian gravity

Ingemar Bengtsson, Tobias Eklund

arxiv:2112.06503 v2 · 2021-12-13 · gr-qc · physics.hist-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{Y6U7HDQBNDBOREFIFAXV2UTRNK}

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	2026-07-05T06:34:16.654415Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7a9f38e0168c2e890a8282f5d52716a9248a3367f4227c4d635d929a80c5525

Aliases

arxiv: 2112.06503 · arxiv_version: 2112.06503v2 · doi: 10.48550/arxiv.2112.06503 · pith_short_12: Y6U7HDQBNDBO · pith_short_16: Y6U7HDQBNDBOREFI · pith_short_8: Y6U7HDQB

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/Y6U7HDQBNDBOREFIFAXV2UTRNK \
  | 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: c7a9f38e0168c2e890a8282f5d52716a9248a3367f4227c4d635d929a80c5525

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75d894542f8d97afb0ecaa36400197795812a0502833c8e053402eb4af9687aa",
    "cross_cats_sorted": [
      "physics.hist-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-12-13T09:25:37Z",
    "title_canon_sha256": "ad2aee142f4e24ce5f8abe339ae182cfdba07d1dde46e5ec21d38fd71a1030b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.06503",
    "kind": "arxiv",
    "version": 2
  }
}