Pith Number

pith:RM4P4PMO

pith:2001:RM4P4PMOIIOCEASE4NHOM5X47K

not attested not anchored not stored refs pending

Photometric Redshifts of Quasars

(2) IAS, (3) Princeton, (4) Fermilab), Daniel E. Vanden Berk (4) et al. ((1) Penn State, Donald P. Schneider (1), Gordon T. Richards (1), Michael A. Strauss (3), Michael A. Weinstein (1), Xiaohui Fan (2)

arxiv:astro-ph/0106038 v1 · 2001-06-03 · 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{RM4P4PMOIIOCEASE4NHOM5X47K}

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	2026-07-04T16:23:29.227717Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b38fe3d8e421c220244e34ee676fcfaaa6b07b763afcfbf054c81c298d88c13

Aliases

arxiv: astro-ph/0106038 · arxiv_version: astro-ph/0106038v1 · doi: 10.48550/arxiv.astro-ph/0106038 · pith_short_12: RM4P4PMOIIOC · pith_short_16: RM4P4PMOIIOCEASE · pith_short_8: RM4P4PMO

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/RM4P4PMOIIOCEASE4NHOM5X47K \
  | 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: 8b38fe3d8e421c220244e34ee676fcfaaa6b07b763afcfbf054c81c298d88c13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e86be525310a9ade1402c5156832dea7303814a622671595cd9af6ae636391d5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-06-03T14:53:48Z",
    "title_canon_sha256": "90a4c8af64e6b4411016cb1eb37992320d33c2c8d795c28d7923b717cdf82883"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0106038",
    "kind": "arxiv",
    "version": 1
  }
}