Pith Number

pith:DAUA3NEY

pith:2007:DAUA3NEYHQ6EECHEDS3LN4JXW7

not attested not anchored not stored refs pending

New directions in Nielsen-Reidemeister theory

Alexander Fel'shtyn

arxiv:0712.2601 v2 · 2007-12-17 · math.GR · math.AT · math.GT · math.RT · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DAUA3NEYHQ6EECHEDS3LN4JXW7}

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	2026-05-18T04:30:37.163382Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18280db4983c3c4208e41cb6b6f137b7d50d83907e6a90a0b2b9bc3406a4f8ca

Aliases

arxiv: 0712.2601 · arxiv_version: 0712.2601v2 · doi: 10.48550/arxiv.0712.2601 · pith_short_12: DAUA3NEYHQ6E · pith_short_16: DAUA3NEYHQ6EECHE · pith_short_8: DAUA3NEY

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/DAUA3NEYHQ6EECHEDS3LN4JXW7 \
  | 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: 18280db4983c3c4208e41cb6b6f137b7d50d83907e6a90a0b2b9bc3406a4f8ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e88c9b1bf557004d24a509af3585c1ce0448a8e49ca4c3416f1c85c564a297c1",
    "cross_cats_sorted": [
      "math.AT",
      "math.GT",
      "math.RT",
      "math.SG"
    ],
    "license": "",
    "primary_cat": "math.GR",
    "submitted_at": "2007-12-17T20:28:17Z",
    "title_canon_sha256": "08563acc6bd0eb9b7d517cd858eafbc289803c35b83e9178af80ff5aaa054b4e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0712.2601",
    "kind": "arxiv",
    "version": 2
  }
}