Pith Number

pith:5HUV2CMQ

pith:2025:5HUV2CMQ4PLLVY6KL4XYAKVGYD

not attested not anchored not stored refs pending

PINNverse: Accurate parameter estimation in differential equations from noisy data with constrained physics-informed neural networks

Dagmar Iber, Marius Almanst\"otter, Roman Vetter

arxiv:2504.05248 v1 · 2025-04-07 · cs.LG · cs.AI · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5HUV2CMQ4PLLVY6KL4XYAKVGYD}

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	2026-07-05T10:45:36.317438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9e95d0990e3d6bae3ca5f2f802aa6c0d6ad732e13a153de2cdd1776545d59ad

Aliases

arxiv: 2504.05248 · arxiv_version: 2504.05248v1 · doi: 10.48550/arxiv.2504.05248 · pith_short_12: 5HUV2CMQ4PLL · pith_short_16: 5HUV2CMQ4PLLVY6K · pith_short_8: 5HUV2CMQ

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/5HUV2CMQ4PLLVY6KL4XYAKVGYD \
  | 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: e9e95d0990e3d6bae3ca5f2f802aa6c0d6ad732e13a153de2cdd1776545d59ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b188c403b3b245979f2462c2b7079f5414774ba1abe02cc2c9663a391d1a0797",
    "cross_cats_sorted": [
      "cs.AI",
      "physics.comp-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-04-07T16:34:57Z",
    "title_canon_sha256": "abeb3006f67b5fc1e026f2fb3464e7fd94e4c23b62d2889f1c7d34f7e7c13352"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.05248",
    "kind": "arxiv",
    "version": 1
  }
}