Pith Number

pith:TRA64MEG

pith:2011:TRA64MEGIZ35HB4UWO76BDW2WY

not attested not anchored not stored refs pending

Addendum to Olivier Schiffmann, "Drinfeld realization of the elliptic Hall algebra"

Dragos Fratila

arxiv:1109.5991 v1 · 2011-09-27 · math.QA · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TRA64MEGIZ35HB4UWO76BDW2WY}

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	2026-05-18T04:12:10.891700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c41ee30864677d38794b3bfe08edab621c5c83024a1cd4731799ef7f76d42d3

Aliases

arxiv: 1109.5991 · arxiv_version: 1109.5991v1 · doi: 10.48550/arxiv.1109.5991 · pith_short_12: TRA64MEGIZ35 · pith_short_16: TRA64MEGIZ35HB4U · pith_short_8: TRA64MEG

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/TRA64MEGIZ35HB4UWO76BDW2WY \
  | 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: 9c41ee30864677d38794b3bfe08edab621c5c83024a1cd4731799ef7f76d42d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f357cab5d7885f7489662a1ad31f5f89304a0e223e24ea18b245b07679b338fd",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.QA",
    "submitted_at": "2011-09-27T19:09:48Z",
    "title_canon_sha256": "4877efe43daf56314e2142d95e6f7a50392c62f162a32dab7617ccfde54ddc28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.5991",
    "kind": "arxiv",
    "version": 1
  }
}