Pith Number

pith:6PPGSNAA

pith:2018:6PPGSNAAOPFDATC33RP2ZG5R5H

not attested not anchored not stored refs pending

A note on homotopy categories of FP-Injectives

Georgios Dalezios

arxiv:1803.01140 v1 · 2018-03-03 · math.RA · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6PPGSNAAOPFDATC33RP2ZG5R5H}

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	2026-05-18T00:22:01.664344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3de69340073ca304c5bdc5fac9bb1e9d010407bccbfbe83c3cf31332e176339

Aliases

arxiv: 1803.01140 · arxiv_version: 1803.01140v1 · doi: 10.48550/arxiv.1803.01140 · pith_short_12: 6PPGSNAAOPFD · pith_short_16: 6PPGSNAAOPFDATC3 · pith_short_8: 6PPGSNAA

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/6PPGSNAAOPFDATC33RP2ZG5R5H \
  | 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: f3de69340073ca304c5bdc5fac9bb1e9d010407bccbfbe83c3cf31332e176339

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "921a3ba2d4eaaec277710e87209564379ce7cb40a51fa4149f3ed2f7e56f0288",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2018-03-03T10:31:43Z",
    "title_canon_sha256": "1dbc1ae2c6052495edc0f0064d548b98e9ac02129d938e27026c33d8f14de20c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.01140",
    "kind": "arxiv",
    "version": 1
  }
}