Pith Number

pith:EWPQ2Y7E

pith:2015:EWPQ2Y7EDXFTDEZ6YN45XS7A56

not attested not anchored not stored refs pending

Computing the Similarity Between Moving Curves

Bettina Speckmann, Kevin Buchin, Tim Ophelders

arxiv:1507.03819 v1 · 2015-07-14 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EWPQ2Y7EDXFTDEZ6YN45XS7A56}

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	2026-05-18T01:36:57.267081Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

259f0d63e41dcb31933ec379dbcbe0efbd966d59f6942d7c5064dc06a1be5b3c

Aliases

arxiv: 1507.03819 · arxiv_version: 1507.03819v1 · doi: 10.48550/arxiv.1507.03819 · pith_short_12: EWPQ2Y7EDXFT · pith_short_16: EWPQ2Y7EDXFTDEZ6 · pith_short_8: EWPQ2Y7E

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/EWPQ2Y7EDXFTDEZ6YN45XS7A56 \
  | 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: 259f0d63e41dcb31933ec379dbcbe0efbd966d59f6942d7c5064dc06a1be5b3c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "760429828ef402f6c779c141e42f8b4b14083ea6cbd80d280235f49e98e7d329",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2015-07-14T11:41:04Z",
    "title_canon_sha256": "dea0f694b6995da7eb59db85b30c0a91f2e00df25a3424231a89a2989e251aa3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.03819",
    "kind": "arxiv",
    "version": 1
  }
}