Pith Number

pith:QV5IUSZX

pith:2017:QV5IUSZXWYS5W43ATHBF5JVEBQ

not attested not anchored not stored refs pending

Evolution of the Ubiquitin-Activating Enzyme Uba1 (E1)

Douglas C. Allan, J. C. Phillips

arxiv:1702.06950 v1 · 2017-02-22 · q-bio.OT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QV5IUSZXWYS5W43ATHBF5JVEBQ}

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	2026-05-18T00:43:54.299865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

857a8a4b37b625db736099c25ea6a40c0e338fd326dfe6edad69e5f5acd3a2c1

Aliases

arxiv: 1702.06950 · arxiv_version: 1702.06950v1 · doi: 10.48550/arxiv.1702.06950 · pith_short_12: QV5IUSZXWYS5 · pith_short_16: QV5IUSZXWYS5W43A · pith_short_8: QV5IUSZX

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/QV5IUSZXWYS5W43ATHBF5JVEBQ \
  | 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: 857a8a4b37b625db736099c25ea6a40c0e338fd326dfe6edad69e5f5acd3a2c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8095605f6c7567f4d00acddb6fc35f13d1118fe96e3892ad99278299e70d87ef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.OT",
    "submitted_at": "2017-02-22T17:13:58Z",
    "title_canon_sha256": "1e89f788314555d81e61f07a749897077b0323f45a4a2ba69c00cbd947337a4e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.06950",
    "kind": "arxiv",
    "version": 1
  }
}