Pith Number

pith:BUTX5N6S

pith:2024:BUTX5N6SJPNPCBFESAAJBHNVPY

not attested not anchored not stored refs pending

Toward double copy on arbitrary backgrounds

Anton Ilderton, William Lindved

arxiv:2405.10016 v2 · 2024-05-16 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BUTX5N6SJPNPCBFESAAJBHNVPY}

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 Penrose Transform and the Kerr-Schild double copy

Black Hole Interiors as a Laboratory for Time-Dependent Classical Double Copy

Receipt and verification

First computed	2026-07-05T09:36:40.815103Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d277eb7d24bdaf104a49000909db57e0496854fdf796872856f3ee2135d467d

Aliases

arxiv: 2405.10016 · arxiv_version: 2405.10016v2 · doi: 10.48550/arxiv.2405.10016 · pith_short_12: BUTX5N6SJPNP · pith_short_16: BUTX5N6SJPNPCBFE · pith_short_8: BUTX5N6S

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/BUTX5N6SJPNPCBFESAAJBHNVPY \
  | 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: 0d277eb7d24bdaf104a49000909db57e0496854fdf796872856f3ee2135d467d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bcc47342ee9f60ff15c3813ffd698d61bddad0f143abe240f6e4a73129484e83",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2024-05-16T11:59:17Z",
    "title_canon_sha256": "d6e26fba6b0fdd7313cd94de10396a7a5a40db5516949ac96998b3a37e28335f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2405.10016",
    "kind": "arxiv",
    "version": 2
  }
}