Pith Number

pith:SST2QBVM

pith:2006:SST2QBVMGPOICRLMLJMYBM7PRU

not attested not anchored not stored refs pending

Cutting and Pasting in the Torelli Group

Andrew Putman

arxiv:math/0608373 v3 · 2006-08-15 · math.GT · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SST2QBVMGPOICRLMLJMYBM7PRU}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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.

Cited by

1 paper in Pith

Calculating the second rational cohomology group of the Torelli group

Receipt and verification

First computed	2026-05-18T02:37:59.563967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94a7a806ac33dc81456c5a5980b3ef8d0cdbcbe86cd123606c50d7a277b11df2

Aliases

arxiv: math/0608373 · arxiv_version: math/0608373v3 · doi: 10.48550/arxiv.math/0608373 · pith_short_12: SST2QBVMGPOI · pith_short_16: SST2QBVMGPOICRLM · pith_short_8: SST2QBVM

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/SST2QBVMGPOICRLMLJMYBM7PRU \
  | 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: 94a7a806ac33dc81456c5a5980b3ef8d0cdbcbe86cd123606c50d7a277b11df2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48a7283a13b58e254bca890cf8208e603f3eceafa15f86bffe87f2f50a37f559",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "",
    "primary_cat": "math.GT",
    "submitted_at": "2006-08-15T05:22:24Z",
    "title_canon_sha256": "8c66ac666aae97ff26c442bb344409ffc73ccf49122adceb8ce89883632d375b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0608373",
    "kind": "arxiv",
    "version": 3
  }
}