Pith Number

pith:UB2PYMB2

pith:2021:UB2PYMB2CG53BH5USF4453EEDR

not attested not anchored not stored refs pending

Exact time-dependent density functional theory for non-perturbative dynamics of helium atom

Davood Dar, Johannes Feist, Lionel Lacombe, Neepa Maitra

arxiv:2105.08656 v2 · 2021-05-18 · physics.chem-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{UB2PYMB2CG53BH5USF4453EEDR}

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	2026-07-05T04:43:56.770785Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a074fc303a11bbb09fb49179ceec841c5ac6f0d511336288fad771953a4dd1c2

Aliases

arxiv: 2105.08656 · arxiv_version: 2105.08656v2 · doi: 10.48550/arxiv.2105.08656 · pith_short_12: UB2PYMB2CG53 · pith_short_16: UB2PYMB2CG53BH5U · pith_short_8: UB2PYMB2

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/UB2PYMB2CG53BH5USF4453EEDR \
  | 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: a074fc303a11bbb09fb49179ceec841c5ac6f0d511336288fad771953a4dd1c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b429da790a5603f178d462910bc6e5c35f4aba17995e9118d89226410aa0abaa",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2021-05-18T16:35:39Z",
    "title_canon_sha256": "e7c3285c32704893bd38c62f0f7ce285187cc37a40670ce3033987bd6a295531"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.08656",
    "kind": "arxiv",
    "version": 2
  }
}