Pith Number

pith:AR674TD4

pith:2020:AR674TD4ZWD4V6VETVQ3PMXNPT

not attested not anchored not stored refs pending

Group invariant solutions of certain partial differential equations

Friedrich Tomi, Jaime Ripoll

arxiv:2007.01040 v2 · 2020-07-02 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AR674TD4ZWD4V6VETVQ3PMXNPT}

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	2026-07-05T03:15:28.052468Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

047dfe4c7ccd87cafaa49d61b7b2ed7cfbccffb36af57287b687f6b99a3f974a

Aliases

arxiv: 2007.01040 · arxiv_version: 2007.01040v2 · doi: 10.48550/arxiv.2007.01040 · pith_short_12: AR674TD4ZWD4 · pith_short_16: AR674TD4ZWD4V6VE · pith_short_8: AR674TD4

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/AR674TD4ZWD4V6VETVQ3PMXNPT \
  | 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: 047dfe4c7ccd87cafaa49d61b7b2ed7cfbccffb36af57287b687f6b99a3f974a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fdebc3d9e43921970f19b1c25e073864260ea99e08971b7f47ae1dc973bce1a2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2020-07-02T11:56:52Z",
    "title_canon_sha256": "17cd1c2f26dadb28e95e0f7dcf4069f83d4a89d25b7f864bdf924c90b6f6621c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.01040",
    "kind": "arxiv",
    "version": 2
  }
}