Pith Number

pith:TYUVD4UJ

pith:2021:TYUVD4UJ35BJ5CEL3GROIG75HL

not attested not anchored not stored refs pending

Challenges for Optical Flow Estimates in Elastography

Ekaterina Sherina, Lisa Krainz, Otmar Scherzer, Simon Hubmer, Wolfgang Drexler

arxiv:2103.14494 v1 · 2021-03-26 · math.NA · cs.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{TYUVD4UJ35BJ5CEL3GROIG75HL}

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	2026-07-05T02:26:41.493097Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e2951f289df429e888bd9a2e41bfd3aeaeb9406adc25383b580c06eaeb7c1db

Aliases

arxiv: 2103.14494 · arxiv_version: 2103.14494v1 · doi: 10.48550/arxiv.2103.14494 · pith_short_12: TYUVD4UJ35BJ · pith_short_16: TYUVD4UJ35BJ5CEL · pith_short_8: TYUVD4UJ

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/TYUVD4UJ35BJ5CEL3GROIG75HL \
  | 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: 9e2951f289df429e888bd9a2e41bfd3aeaeb9406adc25383b580c06eaeb7c1db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b055d5f7d480eacc37ad0889cf4890d9a339b20ccc53837551bee2cf06280d1a",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2021-03-26T14:35:05Z",
    "title_canon_sha256": "a61bc0ee7e36322467d83346e79248cd486c16113580ea5ea0026deb0e63d0c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.14494",
    "kind": "arxiv",
    "version": 1
  }
}