Pith Number

pith:6TKOB73T

pith:2009:6TKOB73TAGM77DFNPE7MQLX7RK

not attested not anchored not stored refs pending

Transfinite thin plate spline interpolation

Aurelian Bejancu

arxiv:0910.1507 v1 · 2009-10-08 · 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{6TKOB73TAGM77DFNPE7MQLX7RK}

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	2026-05-18T04:12:34.107142Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4d4e0ff730199ff8cad793ec82eff8a864bede3043e9191abefaac83dae06ce

Aliases

arxiv: 0910.1507 · arxiv_version: 0910.1507v1 · doi: 10.48550/arxiv.0910.1507 · pith_short_12: 6TKOB73TAGM7 · pith_short_16: 6TKOB73TAGM77DFN · pith_short_8: 6TKOB73T

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/6TKOB73TAGM77DFNPE7MQLX7RK \
  | 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: f4d4e0ff730199ff8cad793ec82eff8a864bede3043e9191abefaac83dae06ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2d361eac614eae1250d40180145a5dee32d16234c29ef73b4680522e74e0601",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2009-10-08T13:54:51Z",
    "title_canon_sha256": "97543a4534fd1496d48c71dc5c04c561fea22b676c6d3ac61010f6d97718e103"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.1507",
    "kind": "arxiv",
    "version": 1
  }
}