Pith Number

pith:ETN6UWMR

pith:2011:ETN6UWMRFYAXLLDJFPYD247T6R

not attested not anchored not stored refs pending

A fast algorithm for reversion of power series

Fredrik Johansson

arxiv:1108.4772 v3 · 2011-08-24 · cs.SC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ETN6UWMRFYAXLLDJFPYD247T6R}

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	2026-05-18T03:05:55.243053Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24dbea59912e0175ac692bf03d73f3f477f9516a60bb4dd219b6d55fd0d8a02d

Aliases

arxiv: 1108.4772 · arxiv_version: 1108.4772v3 · doi: 10.48550/arxiv.1108.4772 · pith_short_12: ETN6UWMRFYAX · pith_short_16: ETN6UWMRFYAXLLDJ · pith_short_8: ETN6UWMR

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/ETN6UWMRFYAXLLDJFPYD247T6R \
  | 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: 24dbea59912e0175ac692bf03d73f3f477f9516a60bb4dd219b6d55fd0d8a02d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b49b80a71b1c085d6ab0270b0f1efca1ebcca80136e8eceae9ca358ae772c537",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SC",
    "submitted_at": "2011-08-24T07:41:26Z",
    "title_canon_sha256": "27113ce71e8fb1b6370be41ab697d840a2acf79fb0d3ad9b123b41a8333f5577"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.4772",
    "kind": "arxiv",
    "version": 3
  }
}