Pith Number

pith:3POER7IF

pith:2010:3POER7IFG6DMRIY3NW7HKJJQYS

not attested not anchored not stored refs pending

Higher Dimensional Homology Algebra IV:Projective Resolutions and Derived 2-Functors in ($\cR$-2-Mod)

Fang Huang, Shao-Han Chen, Wei Chen, Zhu-Jun Zheng

arxiv:1008.3260 v1 · 2010-08-19 · math.CT · math-ph · math.KT · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3POER7IFG6DMRIY3NW7HKJJQYS}

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	2026-05-18T04:42:03.026080Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dbdc48fd053786c8a31b6dbe752530c48ddf0329340cfa030b36c9cd348fe0dd

Aliases

arxiv: 1008.3260 · arxiv_version: 1008.3260v1 · doi: 10.48550/arxiv.1008.3260 · pith_short_12: 3POER7IFG6DM · pith_short_16: 3POER7IFG6DMRIY3 · pith_short_8: 3POER7IF

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/3POER7IFG6DMRIY3NW7HKJJQYS \
  | 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: dbdc48fd053786c8a31b6dbe752530c48ddf0329340cfa030b36c9cd348fe0dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4120b34cba6e28ede664a1d87b2667304ffe8816c9df882a464bed88be4b8f3",
    "cross_cats_sorted": [
      "math-ph",
      "math.KT",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2010-08-19T10:04:06Z",
    "title_canon_sha256": "a680c3f5aba0295d180d3def4b419ba305180c8fb0690bf42752ef8f08d048a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.3260",
    "kind": "arxiv",
    "version": 1
  }
}