Pith Number

pith:3PKEWGDU

pith:2016:3PKEWGDUBKR47RG463AJUO7VL5

not attested not anchored not stored refs pending

Ahlfors problem for polynomials

Benjamin Eichinger, Peter Yuditskii

arxiv:1612.02949 v2 · 2016-12-09 · 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{3PKEWGDUBKR47RG463AJUO7VL5}

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	2026-05-18T00:51:37.000514Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dbd44b18740aa3cfc4dcf6c09a3bf55f49b2484938f1c620313cd2e006750ed5

Aliases

arxiv: 1612.02949 · arxiv_version: 1612.02949v2 · doi: 10.48550/arxiv.1612.02949 · pith_short_12: 3PKEWGDUBKR4 · pith_short_16: 3PKEWGDUBKR47RG4 · pith_short_8: 3PKEWGDU

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/3PKEWGDUBKR47RG463AJUO7VL5 \
  | 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: dbd44b18740aa3cfc4dcf6c09a3bf55f49b2484938f1c620313cd2e006750ed5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57e2d653d7bef25c1058e1df24ffbd9cdc7424029bb057c1d7d5517da8fbd1d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2016-12-09T09:11:57Z",
    "title_canon_sha256": "090449aa9a3603424a938da96d9fab222f5afea2cc070e6e4a878d4d7c5e4203"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.02949",
    "kind": "arxiv",
    "version": 2
  }
}