Pith Number

pith:373UPWAB

pith:2021:373UPWABVM4P3LRG3FXITQ447J

not attested not anchored not stored refs pending

Tractor geometry of asymptotically flat spacetimes

Yannick Herfray

arxiv:2103.10405 v4 · 2021-03-18 · gr-qc · math-ph · math.DG · math.MP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{373UPWABVM4P3LRG3FXITQ447J}

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.

Cited by

2 papers in Pith

The Energy-Momentum-News Complex near Future Null Infinity

Carrollian Perspective on Celestial Holography

Receipt and verification

First computed	2026-07-05T04:30:50.940250Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dff747d801ab38fdae26d96e89c39cfa48c11545657ecf51177b736446dc017a

Aliases

arxiv: 2103.10405 · arxiv_version: 2103.10405v4 · doi: 10.48550/arxiv.2103.10405 · pith_short_12: 373UPWABVM4P · pith_short_16: 373UPWABVM4P3LRG · pith_short_8: 373UPWAB

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/373UPWABVM4P3LRG3FXITQ447J \
  | 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: dff747d801ab38fdae26d96e89c39cfa48c11545657ecf51177b736446dc017a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0665722faad801fe713e5a17dfaef167e07c0e95c0825553c26760120f46d64",
    "cross_cats_sorted": [
      "math-ph",
      "math.DG",
      "math.MP"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-03-18T17:40:54Z",
    "title_canon_sha256": "af7f6c141c62dc80740fbfc1dc28889075010be794ee0ddb0e509ff765d4aaa1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.10405",
    "kind": "arxiv",
    "version": 4
  }
}