Pith Number

pith:HQRHFPMF

pith:2021:HQRHFPMF7INK4FYEYWZHPSF5JI

not attested not anchored not stored refs pending

Variational analysis of inextensible elastic curves

Alfredo Marzocchi, Giulia Bevilacqua, Luca Lussardi

arxiv:2106.01659 v1 · 2021-06-03 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HQRHFPMF7INK4FYEYWZHPSF5JI}

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	2026-07-05T04:19:32.047536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c2272bd85fa1aae1704c5b277c8bd4a365029e542623e6bfca2ca8d3fe20b88

Aliases

arxiv: 2106.01659 · arxiv_version: 2106.01659v1 · doi: 10.48550/arxiv.2106.01659 · pith_short_12: HQRHFPMF7INK · pith_short_16: HQRHFPMF7INK4FYE · pith_short_8: HQRHFPMF

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/HQRHFPMF7INK4FYEYWZHPSF5JI \
  | 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: 3c2272bd85fa1aae1704c5b277c8bd4a365029e542623e6bfca2ca8d3fe20b88

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c3fbb463fe3f7af290e7f5fc72960bd17677247adfb4c6ce4a645d29770f1fd",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2021-06-03T08:03:25Z",
    "title_canon_sha256": "d7f01b628a98eb34a305827d86c3128745b86ad5be7fdcd1bbb01af0e14dc89b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.01659",
    "kind": "arxiv",
    "version": 1
  }
}