Pith Number

pith:TUI2PHNF

pith:2017:TUI2PHNFKVO7LZYKTPWGOZTGWN

not attested not anchored not stored refs pending

New trends in free boundary problems

Aram Karakhanyan, Enrico Valdinoci, Serena Dipierro

arxiv:1701.07897 v1 · 2017-01-26 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TUI2PHNFKVO7LZYKTPWGOZTGWN}

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	2026-05-18T00:51:59.431685Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d11a79da5555df5e70a9bec676666b349fbc19af571b6d29e963e992404712a

Aliases

arxiv: 1701.07897 · arxiv_version: 1701.07897v1 · doi: 10.48550/arxiv.1701.07897 · pith_short_12: TUI2PHNFKVO7 · pith_short_16: TUI2PHNFKVO7LZYK · pith_short_8: TUI2PHNF

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/TUI2PHNFKVO7LZYKTPWGOZTGWN \
  | 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: 9d11a79da5555df5e70a9bec676666b349fbc19af571b6d29e963e992404712a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b0ad540104d9502e4546880743fd5bd45093978296be25b71e81eb6e9f61e63",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-01-26T22:55:21Z",
    "title_canon_sha256": "cc21053177ae71279b9ecebe567247f569485198a06152d5b3f8e033d3632e1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.07897",
    "kind": "arxiv",
    "version": 1
  }
}