Pith Number

pith:7VUVZQXR

pith:2021:7VUVZQXR5LI3NZ5KYPWSC4YL5C

not attested not anchored not stored refs pending

First direct lattice calculation of the chiral perturbation theory low-energy constant $\ell_7$

F. Sanfilippo, G. Gagliardi, G. Martinelli, R. Frezzotti, S. Simula, V. Lubicz

arxiv:2107.11895 v1 · 2021-07-25 · hep-lat · 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{7VUVZQXR5LI3NZ5KYPWSC4YL5C}

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	2026-07-05T03:26:02.166881Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd695cc2f1ead1b6e7aac3ed21730be8af69fdf8560e5dbd2a8926cc5fba0766

Aliases

arxiv: 2107.11895 · arxiv_version: 2107.11895v1 · doi: 10.48550/arxiv.2107.11895 · pith_short_12: 7VUVZQXR5LI3 · pith_short_16: 7VUVZQXR5LI3NZ5K · pith_short_8: 7VUVZQXR

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/7VUVZQXR5LI3NZ5KYPWSC4YL5C \
  | 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: fd695cc2f1ead1b6e7aac3ed21730be8af69fdf8560e5dbd2a8926cc5fba0766

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1d7c63b31337d653a28da701c567fd526a3f6a9e60cf74ef34d2ef40e49fc6f",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-lat",
    "submitted_at": "2021-07-25T21:13:52Z",
    "title_canon_sha256": "f58585eee958b59dcf391f25f48353b05ec0bc6b211e91c6547556c5e72fbac2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.11895",
    "kind": "arxiv",
    "version": 1
  }
}