Pith Number

pith:ARZDUEB7

pith:2015:ARZDUEB742LEOABL3NSGGMUBE5

not attested not anchored not stored refs pending

Approximation by planar elastic curves

David Brander, Jens Gravesen, Toke Bjerge N{\o}rbjerg

arxiv:1509.00703 v2 · 2015-09-02 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ARZDUEB742LEOABL3NSGGMUBE5}

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	2026-05-18T01:09:55.194754Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

04723a103fe69647002bdb6463328127783fc44045f8434feedc750299c88a35

Aliases

arxiv: 1509.00703 · arxiv_version: 1509.00703v2 · doi: 10.48550/arxiv.1509.00703 · pith_short_12: ARZDUEB742LE · pith_short_16: ARZDUEB742LEOABL · pith_short_8: ARZDUEB7

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/ARZDUEB742LEOABL3NSGGMUBE5 \
  | 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: 04723a103fe69647002bdb6463328127783fc44045f8434feedc750299c88a35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31c9f47a597ce88fa6a97e16d98aa0428ad348a57ef0e7691dd86b195d1c84ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-09-02T13:54:31Z",
    "title_canon_sha256": "2880c033e72a5669d6cdc815515dbc4a80b5b610f3a3c8aef0271da4cac2d2b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.00703",
    "kind": "arxiv",
    "version": 2
  }
}