Pith Number

pith:2JAAZV4A

pith:2018:2JAAZV4AW5GPP7LJL2B37FTDBY

not attested not anchored not stored refs pending

How do Software Ecosystems Co-Evolve? A view from OpenStack and beyond

Jos\'e Apolin\'ario Teixeira, Sami Hyrynsalmi

arxiv:1808.06663 v1 · 2018-08-20 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2JAAZV4AW5GPP7LJL2B37FTDBY}

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	2026-05-18T00:07:39.494363Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2400cd780b74cf7fd695e83bf96630e162df26b1ca0a220391d13c7b094dff6

Aliases

arxiv: 1808.06663 · arxiv_version: 1808.06663v1 · doi: 10.48550/arxiv.1808.06663 · pith_short_12: 2JAAZV4AW5GP · pith_short_16: 2JAAZV4AW5GPP7LJ · pith_short_8: 2JAAZV4A

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/2JAAZV4AW5GPP7LJL2B37FTDBY \
  | 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: d2400cd780b74cf7fd695e83bf96630e162df26b1ca0a220391d13c7b094dff6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "36bc96023e25a3a88e0a4e0484fdb54805460c16f011b2928cb5b11eb04db5ff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2018-08-20T19:28:16Z",
    "title_canon_sha256": "a3b34643a01784bf6b7f197f1bfe0078c7a1231e4e26cbb7ebd1cb9ba905d3ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.06663",
    "kind": "arxiv",
    "version": 1
  }
}