Pith Number

pith:JMSTDGHI

pith:2021:JMSTDGHI3KIPG4SGB7SMGFYL62

not attested not anchored not stored refs pending

Extracting Einstein from the Loop-Level Double-Copy

Ingrid A. Vazquez-Holm, John Joseph M. Carrasco

arxiv:2108.06798 v1 · 2021-08-15 · hep-th · gr-qc · hep-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{JMSTDGHI3KIPG4SGB7SMGFYL62}

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	2026-07-05T03:36:11.642447Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b253198e8da90f372460fe4c3170bf69d968cd1944d11b750f409a343181b85

Aliases

arxiv: 2108.06798 · arxiv_version: 2108.06798v1 · doi: 10.48550/arxiv.2108.06798 · pith_short_12: JMSTDGHI3KIP · pith_short_16: JMSTDGHI3KIPG4SG · pith_short_8: JMSTDGHI

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/JMSTDGHI3KIPG4SGB7SMGFYL62 \
  | 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: 4b253198e8da90f372460fe4c3170bf69d968cd1944d11b750f409a343181b85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2854b32946a9efdeac3b0813e82ee7b1cfcca4f6332451716c47bf30ade4cfb3",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2021-08-15T19:22:48Z",
    "title_canon_sha256": "831a94087630b08723e54bc001a6a13a9f6180f4beebe685207ec0a281aa6410"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.06798",
    "kind": "arxiv",
    "version": 1
  }
}