Pith Number

pith:5ZHDCMFS

pith:2011:5ZHDCMFS3MONGA3MT57XT4KGC4

not attested not anchored not stored refs pending

Optimized Spline Interpolation

Ali Ayremlou, Arash Amini, Farrokh Marvasti, Ramtin Madani

arxiv:1105.0011 v1 · 2011-04-29 · cs.MM

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	2026-05-18T04:23:12.705256Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee4e3130b2db1cd3036c9f7f79f1461707b742060e23e0b85560f2ec69e90a81

Aliases

arxiv: 1105.0011 · arxiv_version: 1105.0011v1 · doi: 10.48550/arxiv.1105.0011 · pith_short_12: 5ZHDCMFS3MON · pith_short_16: 5ZHDCMFS3MONGA3M · pith_short_8: 5ZHDCMFS

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/5ZHDCMFS3MONGA3MT57XT4KGC4 \
  | 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: ee4e3130b2db1cd3036c9f7f79f1461707b742060e23e0b85560f2ec69e90a81

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29eaa3021d4f6d3c274e771b7e49dcd90a437afda5785d5135654740655b53fc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2011-04-29T20:05:52Z",
    "title_canon_sha256": "4bedca88d259078799f786c621c44ada0c2026f6f11169dbbdb4c35e67f21751"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.0011",
    "kind": "arxiv",
    "version": 1
  }
}