Pith Number

pith:2NGXYIRI

pith:2003:2NGXYIRI5GOX5CIWG6D4LM4HS7

not attested not anchored not stored refs pending

Far Infrared mapping of NGC 891

(2) University of Crete, (3) NASA/IPAC Extragalactic Database, 4) ((1) MPIK Heidelberg, (4) Carnegie Observatories, Barry F. Madore (3, Cristina C. Popescu (1), Heraklion, Nikolaos D. Kylafis (2), Pasadena), Richard. J. Tuffs (1)

arxiv:astro-ph/0310266 v1 · 2003-10-09 · astro-ph

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	2026-05-18T04:22:32.365206Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d34d7c2228e99d7e89163787c5b38797d94bcac59712ae5522af058b97be6a2c

Aliases

arxiv: astro-ph/0310266 · arxiv_version: astro-ph/0310266v1 · doi: 10.48550/arxiv.astro-ph/0310266 · pith_short_12: 2NGXYIRI5GOX · pith_short_16: 2NGXYIRI5GOX5CIW · pith_short_8: 2NGXYIRI

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/2NGXYIRI5GOX5CIWG6D4LM4HS7 \
  | 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: d34d7c2228e99d7e89163787c5b38797d94bcac59712ae5522af058b97be6a2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc984ae42e74a80aabe918d7ebb58c6a4d5531b7f28913807588842f1cf70c0b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-10-09T17:30:53Z",
    "title_canon_sha256": "d766046b5d40f9ab558fe628a31324cbb2da37e2890634f6c06602a1b3b6ea5f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0310266",
    "kind": "arxiv",
    "version": 1
  }
}