Pith Number

pith:6R5SSRND

pith:2016:6R5SSRND2THNJ6BCA3L7VC7INV

not attested not anchored not stored refs pending

Strong symplectic fillability of contact torus bundles

Fan Ding, Youlin Li

arxiv:1608.00649 v2 · 2016-08-02 · math.GT · 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{6R5SSRND2THNJ6BCA3L7VC7INV}

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	2026-05-18T00:39:07.123698Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f47b2945a3d4ced4f82206d7fa8be86d5770a02f30479642ca95bea248e645a6

Aliases

arxiv: 1608.00649 · arxiv_version: 1608.00649v2 · doi: 10.48550/arxiv.1608.00649 · pith_short_12: 6R5SSRND2THN · pith_short_16: 6R5SSRND2THNJ6BC · pith_short_8: 6R5SSRND

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/6R5SSRND2THNJ6BCA3L7VC7INV \
  | 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: f47b2945a3d4ced4f82206d7fa8be86d5770a02f30479642ca95bea248e645a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2eb8c38a956054b5355dd9b9a7176de9dd677cea8c64e029411c93b484602357",
    "cross_cats_sorted": [
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2016-08-02T00:18:18Z",
    "title_canon_sha256": "f36a75d8516bd4ddf61f048479ecc86163e5247e61f78f720f91e03b6442839f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.00649",
    "kind": "arxiv",
    "version": 2
  }
}