Pith Number

pith:GTYEFBLO

pith:2025:GTYEFBLOM27VJYMU7Q5KHGRL5X

not attested not anchored not stored refs pending

Temporally Extending Existing Web Archive Collections for Longitudinal Analysis

Lesley Frew, Michael L. Nelson, Michele C. Weigle

arxiv:2505.24091 v1 · 2025-05-30 · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GTYEFBLOM27VJYMU7Q5KHGRL5X}

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	2026-07-05T11:12:41.664222Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34f042856e66bf54e194fc3aa39a2bedfc5ea620911dbd7e613d8e305761e9e7

Aliases

arxiv: 2505.24091 · arxiv_version: 2505.24091v1 · doi: 10.48550/arxiv.2505.24091 · pith_short_12: GTYEFBLOM27V · pith_short_16: GTYEFBLOM27VJYMU · pith_short_8: GTYEFBLO

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/GTYEFBLOM27VJYMU7Q5KHGRL5X \
  | 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: 34f042856e66bf54e194fc3aa39a2bedfc5ea620911dbd7e613d8e305761e9e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d3669296ca8e6bee5959eb7ea199b711c0b6fd300e41bbdfbb1a8b84c20bff4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2025-05-30T00:38:28Z",
    "title_canon_sha256": "e692a0fa73f4b653d63828cd5476413c1225aaba2d03ce4f9bd0febd81040bef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.24091",
    "kind": "arxiv",
    "version": 1
  }
}