Pith Number

pith:44OC4NFD

pith:2001:44OC4NFDAZ5VF2GJSHUQS7GNQZ

not attested not anchored not stored refs pending

Constraints on the Accuracy of Photometric Redshifts Derived from BLAST and Herschel/SPIRE Sub-mm Surveys

David H. Hughes, Edward Chapin, Enrique Gaztanaga (INAOE, Itziar Aretxaga, Mexico)

arxiv:astro-ph/0111508 v1 · 2001-11-27 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{44OC4NFDAZ5VF2GJSHUQS7GNQZ}

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	2026-05-18T04:33:37.875532Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e71c2e34a3067b52e8c991e9097ccd866af038df3b74ed0053ed662dade40500

Aliases

arxiv: astro-ph/0111508 · arxiv_version: astro-ph/0111508v1 · doi: 10.48550/arxiv.astro-ph/0111508 · pith_short_12: 44OC4NFDAZ5V · pith_short_16: 44OC4NFDAZ5VF2GJ · pith_short_8: 44OC4NFD

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/44OC4NFDAZ5VF2GJSHUQS7GNQZ \
  | 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: e71c2e34a3067b52e8c991e9097ccd866af038df3b74ed0053ed662dade40500

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0c8e959a743329e5b3a1d552277aa5ca33165086301561b7fcfe0bf53ab0c5e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-11-27T20:14:19Z",
    "title_canon_sha256": "00dd5c3375a1cdabb48bc7248637324870f6fa7b7f7aea70760a0c906727428e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0111508",
    "kind": "arxiv",
    "version": 1
  }
}