Pith Number

pith:IEGWIDGJ

pith:2017:IEGWIDGJY3EEHCZOJH42AY35HW

not attested not anchored not stored refs pending

Approximation by Finite Supported Functions

Bo Ling, Yongping Liu

arxiv:1707.00824 v1 · 2017-07-04 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IEGWIDGJY3EEHCZOJH42AY35HW}

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	2026-05-18T00:40:56.915960Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

410d640cc9c6c8438b2e49f9a0637d3d840038aa1622d7f8da511193fa1e90df

Aliases

arxiv: 1707.00824 · arxiv_version: 1707.00824v1 · doi: 10.48550/arxiv.1707.00824 · pith_short_12: IEGWIDGJY3EE · pith_short_16: IEGWIDGJY3EEHCZO · pith_short_8: IEGWIDGJ

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/IEGWIDGJY3EEHCZOJH42AY35HW \
  | 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: 410d640cc9c6c8438b2e49f9a0637d3d840038aa1622d7f8da511193fa1e90df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a8e79b25a9526bac4e39910ca8c45e1f0e809fdedcda24de3a7691f85680d3a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2017-07-04T06:30:36Z",
    "title_canon_sha256": "64126438c1cd5aaa70f99b71c0cb6f8c30522e98a84e7210209e4a64837de73f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.00824",
    "kind": "arxiv",
    "version": 1
  }
}