Pith Number

pith:E3J634ZT

pith:2016:E3J634ZTEXWQ2OHVFC5FWATGUZ

not attested not anchored not stored refs pending

Generalized Sinkhorn iterations for regularizing inverse problems using optimal mass transport

Axel Ringh, Johan Karlsson

arxiv:1612.02273 v4 · 2016-12-07 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E3J634ZTEXWQ2OHVFC5FWATGUZ}

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	2026-05-18T00:24:22.737272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26d3edf33325ed0d38f528ba5b0266a66a54ed8d9788fdef7deb2fab02372df8

Aliases

arxiv: 1612.02273 · arxiv_version: 1612.02273v4 · doi: 10.48550/arxiv.1612.02273 · pith_short_12: E3J634ZTEXWQ · pith_short_16: E3J634ZTEXWQ2OHV · pith_short_8: E3J634ZT

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/E3J634ZTEXWQ2OHVFC5FWATGUZ \
  | 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: 26d3edf33325ed0d38f528ba5b0266a66a54ed8d9788fdef7deb2fab02372df8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "73cf4706a46ebfd23e77624b3096e8352739741695a1e876eea234b681ace9c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2016-12-07T14:55:05Z",
    "title_canon_sha256": "24ba608ad1a2d4d08e9413cb774b8910bf6dbd6165b85d584fadce6ed79acaa1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.02273",
    "kind": "arxiv",
    "version": 4
  }
}