Pith Number

pith:NR4EGB7E

pith:2026:NR4EGB7EDSOUX5A3L3CSODFF5Z

not attested not anchored not stored refs pending

Light propagation and intensity transport in metric-affine geometry

Antonio De Felice, Carlos Pastor-Marcos, Gonzalo J. Olmo, Lavinia Heisenberg

arxiv:2607.26141 v1 · 2026-07-28 · 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{NR4EGB7EDSOUX5A3L3CSODFF5Z}

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	2026-07-30T00:08:27.876910Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

6c784307e41c9d4bf41b5ec5270ca5ee55d1712627fe84449b922bc4587afa46

Aliases

arxiv: 2607.26141 · arxiv_version: 2607.26141v1 · doi: 10.48550/arxiv.2607.26141 · pith_short_12: NR4EGB7EDSOU · pith_short_16: NR4EGB7EDSOUX5A3 · pith_short_8: NR4EGB7E

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/NR4EGB7EDSOUX5A3L3CSODFF5Z \
  | 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: 6c784307e41c9d4bf41b5ec5270ca5ee55d1712627fe84449b922bc4587afa46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b11abe671426242aef11bacea6f7bbb8ae5549cb9229ffbe43730e1e30788066",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-07-28T18:00:04Z",
    "title_canon_sha256": "584cb565641b1f67b6e99fce57b277f60ad994890d38ea56e3de9812b85441e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.26141",
    "kind": "arxiv",
    "version": 1
  }
}