Pith Number

pith:QHUY75UE

pith:2009:QHUY75UESYNCYYOXEDHTYXU52O

not attested not anchored not stored refs pending

Twist deformations of Newton-Hooke Hopf algebras

Marcin Daszkiewicz

arxiv:0904.0432 v1 · 2009-04-02 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QHUY75UESYNCYYOXEDHTYXU52O}

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	2026-05-18T02:14:07.907300Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81e98ff684961a2c61d720cf3c5e9dd38ff9b210889b7e5d4e5ddadc877586f9

Aliases

arxiv: 0904.0432 · arxiv_version: 0904.0432v1 · doi: 10.48550/arxiv.0904.0432 · pith_short_12: QHUY75UESYNC · pith_short_16: QHUY75UESYNCYYOX · pith_short_8: QHUY75UE

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/QHUY75UESYNCYYOXEDHTYXU52O \
  | 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: 81e98ff684961a2c61d720cf3c5e9dd38ff9b210889b7e5d4e5ddadc877586f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbef72e280b719a73d2427a6a4eeb1bb68cc70ade481d3517808192672d881d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-04-02T17:37:35Z",
    "title_canon_sha256": "660a626e49ca92aac6dee22aecff43c5cb83e28bf2f0c00fd17b6e28d52d94e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0432",
    "kind": "arxiv",
    "version": 1
  }
}