Pith Number

pith:VQRND7FF

pith:2006:VQRND7FFHIXSN4QMRO37DCZLCP

not attested not anchored not stored refs pending

Homotopy approximations to the space of knots, Feynman diagrams, and a conjecture of Scannell and Sinha

James Conant

arxiv:math/0601647 v2 · 2006-01-26 · math.GT · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VQRND7FFHIXSN4QMRO37DCZLCP}

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	2026-05-18T04:41:45.030964Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac22d1fca53a2f26f20c8bb7f18b2b13df75dce34031cbc89872fc463f46a5eb

Aliases

arxiv: math/0601647 · arxiv_version: math/0601647v2 · doi: 10.48550/arxiv.math/0601647 · pith_short_12: VQRND7FFHIXS · pith_short_16: VQRND7FFHIXSN4QM · pith_short_8: VQRND7FF

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/VQRND7FFHIXSN4QMRO37DCZLCP \
  | 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: ac22d1fca53a2f26f20c8bb7f18b2b13df75dce34031cbc89872fc463f46a5eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7dc050fb605dbcceeb7b6ba99f7973a51f8d90a32681a37d2e7035dd8b643f2d",
    "cross_cats_sorted": [
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2006-01-26T16:48:12Z",
    "title_canon_sha256": "4b51101e5747c1e8b80cd2632e8067341cc0672d74b4f5f37c7f55956e959681"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0601647",
    "kind": "arxiv",
    "version": 2
  }
}