Pith Number

pith:HVRLKGPV

pith:2011:HVRLKGPVSWJ2XTWRM2QFB5UUJB

not attested not anchored not stored refs pending

The XDSPRES CL-based package for reducing OSIRIS cross-dispersed spectra

Daniel Ruschel-Dutra, Jorge Ricardo Ducati, Miriani Pastoriza, Rog\'erio Riffel

arxiv:1107.1713 v1 · 2011-07-08 · astro-ph.IM

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	2026-05-18T02:01:21.129220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d62b519f59593abced166a050f694486a32bc9b7fe72ec0231185e41bb4793c

Aliases

arxiv: 1107.1713 · arxiv_version: 1107.1713v1 · doi: 10.48550/arxiv.1107.1713 · pith_short_12: HVRLKGPVSWJ2 · pith_short_16: HVRLKGPVSWJ2XTWR · pith_short_8: HVRLKGPV

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/HVRLKGPVSWJ2XTWRM2QFB5UUJB \
  | 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: 3d62b519f59593abced166a050f694486a32bc9b7fe72ec0231185e41bb4793c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dbaed0bdf70fc681b810e5697625f565f102a8845602cf1effdf1d82f505d23c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-07-08T19:59:29Z",
    "title_canon_sha256": "3eb414f8c646255f5515e018c1f79c4de0b6b19ff792bcd429c7f97d24be2b4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.1713",
    "kind": "arxiv",
    "version": 1
  }
}