Pith Number

pith:FWIFWTBD

pith:2014:FWIFWTBDYNP6NTZHSLU4SSTSQ7

not attested not anchored not stored refs pending

Flexibility of Bricards planar linkages and other structures via resultants and computer algebra

Evangelos A. Coutsias, Robert H. Lewis

arxiv:1408.6247 v1 · 2014-08-26 · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FWIFWTBDYNP6NTZHSLU4SSTSQ7}

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	2026-05-18T01:49:31.433902Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d905b4c23c35fe6cf2792e9c94a7287cb85f7306d8fb81b54db8f9f565d594f

Aliases

arxiv: 1408.6247 · arxiv_version: 1408.6247v1 · doi: 10.48550/arxiv.1408.6247 · pith_short_12: FWIFWTBDYNP6 · pith_short_16: FWIFWTBDYNP6NTZH · pith_short_8: FWIFWTBD

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/FWIFWTBDYNP6NTZHSLU4SSTSQ7 \
  | 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: 2d905b4c23c35fe6cf2792e9c94a7287cb85f7306d8fb81b54db8f9f565d594f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3493d7eb12861e00c1f53cc8993575093d694fa60a1f016474d811d11ea98dc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2014-08-26T20:21:10Z",
    "title_canon_sha256": "c906e0dcf035d57fa9ffb169156ad45988b34f3c93001bbed7da2f7da098338b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.6247",
    "kind": "arxiv",
    "version": 1
  }
}