Pith Number

pith:2JHNULAH

pith:2021:2JHNULAHI7MBRELSOMUO323IAE

not attested not anchored not stored refs pending

Three Cooperative Robotic Fabrication Methods for the Scaffold-Free Construction of a Masonry Arch

Alessandro Beghini, Attilio Pizzigoni, Edvard P.G. Bruun, Rafael Pastrana, Sigrid Adriaenssens, Stefana Parascho, Vittorio Paris

arxiv:2104.04856 v1 · 2021-04-10 · cs.RO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2JHNULAHI7MBRELSOMUO323IAE}

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	2026-07-05T02:30:48.416065Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d24eda2c0747d81891727328edeb680113a577cf6ab1c6663ca1cdc44c80539e

Aliases

arxiv: 2104.04856 · arxiv_version: 2104.04856v1 · doi: 10.48550/arxiv.2104.04856 · pith_short_12: 2JHNULAHI7MB · pith_short_16: 2JHNULAHI7MBRELS · pith_short_8: 2JHNULAH

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/2JHNULAHI7MBRELSOMUO323IAE \
  | 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: d24eda2c0747d81891727328edeb680113a577cf6ab1c6663ca1cdc44c80539e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7eb33f3ee7411d2d7a8ca7e47a726a40113960d0cc3335bce58a86194fc42c55",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2021-04-10T20:34:07Z",
    "title_canon_sha256": "5bd6e1f59f680a231e90c2ab8396d88955ada26211c5764bdb2754af9034732c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.04856",
    "kind": "arxiv",
    "version": 1
  }
}