Pith Number

pith:J7NHJSC2

pith:2013:J7NHJSC22VF5KE674DPR3QOKL2

not attested not anchored not stored refs pending

The action on cohomology by compositions of rational maps

Roland K. W. Roeder

arxiv:1306.2210 v2 · 2013-06-10 · math.DS · math.AG · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J7NHJSC22VF5KE674DPR3QOKL2}

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	2026-05-18T02:57:43.584633Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4fda74c85ad54bd513dfe0df1dc1ca5ea614e8a7ea90c7d1ae8583ea8f275ce2

Aliases

arxiv: 1306.2210 · arxiv_version: 1306.2210v2 · doi: 10.48550/arxiv.1306.2210 · pith_short_12: J7NHJSC22VF5 · pith_short_16: J7NHJSC22VF5KE67 · pith_short_8: J7NHJSC2

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/J7NHJSC22VF5KE674DPR3QOKL2 \
  | 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: 4fda74c85ad54bd513dfe0df1dc1ca5ea614e8a7ea90c7d1ae8583ea8f275ce2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "235a1df14d0d0596d9b6cb2ca647ff6e4e75f43533d3491797c1ebde4b520e1c",
    "cross_cats_sorted": [
      "math.AG",
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2013-06-10T14:06:22Z",
    "title_canon_sha256": "0d80b8291a18dbf8b3741214fa5dc694d797dc735b38e71e83e61fd9a241f485"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.2210",
    "kind": "arxiv",
    "version": 2
  }
}