Pith Number

pith:VABCIA2E

pith:2014:VABCIA2EDHBLYVZCJXWRIV3WST

not attested not anchored not stored refs pending

The Hourglass as seen with HST/WFPC2

A. I. G\'omez de Castro, J. I. Arias, J. Ma\'iz Apell\'aniz, J. W. MacKenty, L. \'Ubeda, R. H. Barb\'a

arxiv:1410.6766 v1 · 2014-10-23 · astro-ph.SR

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

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	2026-05-18T02:39:24.611757Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a80224034419c2bc57224ded14577694f77d49a50325044b57d5d9d0300ce03f

Aliases

arxiv: 1410.6766 · arxiv_version: 1410.6766v1 · doi: 10.48550/arxiv.1410.6766 · pith_short_12: VABCIA2EDHBL · pith_short_16: VABCIA2EDHBLYVZC · pith_short_8: VABCIA2E

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/VABCIA2EDHBLYVZCJXWRIV3WST \
  | 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: a80224034419c2bc57224ded14577694f77d49a50325044b57d5d9d0300ce03f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4bc38170f6f1dfb2733cc491aa96f2cdeb3aa7e540976e18ee9e9406404a1bae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-10-23T08:06:45Z",
    "title_canon_sha256": "055fd6a4f6cef3f72e77457a1a05147b66792753bfa44773554102fb5db0fae9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.6766",
    "kind": "arxiv",
    "version": 1
  }
}