Pith Number

pith:2CD4L2AC

pith:2021:2CD4L2ACAVJJU7MVHPC3R4W66G

not attested not anchored not stored refs pending

Influenza Surveillance using Search Engine, SNS, On-line Shopping, Q&A Service and Past Flu Patients

Eiji Aramaki, Nobuyuki Shimizu, Shoko Wakamiya, Sumio Fujita, Taichi Murayama

arxiv:2104.06646 v1 · 2021-04-14 · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2CD4L2ACAVJJU7MVHPC3R4W66G}

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	2026-07-05T02:32:08.007917Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d087c5e80205529a7d953bc5b8f2def19f01424af83a5020793305da6265026a

Aliases

arxiv: 2104.06646 · arxiv_version: 2104.06646v1 · doi: 10.48550/arxiv.2104.06646 · pith_short_12: 2CD4L2ACAVJJ · pith_short_16: 2CD4L2ACAVJJU7MV · pith_short_8: 2CD4L2AC

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/2CD4L2ACAVJJU7MVHPC3R4W66G \
  | 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: d087c5e80205529a7d953bc5b8f2def19f01424af83a5020793305da6265026a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fddb6cefb8c4811a23d7a3e07ec935cbe0c706dc689d6f9fce92e03ace7f4b51",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2021-04-14T06:33:55Z",
    "title_canon_sha256": "9f1d55b2eb0d5b9d8685d2bed44e236d7871d4747e230f06d980ee453fb830f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.06646",
    "kind": "arxiv",
    "version": 1
  }
}