Pith Number

pith:4DRAGY7W

pith:2019:4DRAGY7W3HUH3XFJVQ474UIX47

not attested not anchored not stored refs pending

On boundary detachment phenomena for the total variation flow with dynamic boundary conditions

Ken Shirakawa, Piotr Rybka, Ryota Nakayashiki, Yoshikazu Giga

arxiv:1901.06890 v1 · 2019-01-21 · 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{4DRAGY7W3HUH3XFJVQ474UIX47}

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	2026-05-17T23:55:48.793335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0e20363f6d9e87ddca9ac39fe5117e7e4e972336c60b1b04866a7a8138c0cf5

Aliases

arxiv: 1901.06890 · arxiv_version: 1901.06890v1 · doi: 10.48550/arxiv.1901.06890 · pith_short_12: 4DRAGY7W3HUH · pith_short_16: 4DRAGY7W3HUH3XFJ · pith_short_8: 4DRAGY7W

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/4DRAGY7W3HUH3XFJVQ474UIX47 \
  | 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: e0e20363f6d9e87ddca9ac39fe5117e7e4e972336c60b1b04866a7a8138c0cf5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "929545db39b82f35d450bfaeacb865f087a0e0c4a4d90747eb50be5f493696e8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-01-21T11:47:59Z",
    "title_canon_sha256": "714d5054e94b06affd8a0d0efe0d736dc001172f9e42e07e9bef6278c3eef615"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.06890",
    "kind": "arxiv",
    "version": 1
  }
}