Research corpus ScalingBLC-PDF-0004

Enabling Blockchain Innovations with Pegged Sidechains

The library holds the pegged-sidechains paper associated with Adam Back and co-authors: a chain beside Bitcoin, with a two-way peg so coins can move across and back.

Rights uncertain
Design paper
Historic library path

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Record

Authors: Back et al.
Date: 2014, as commonly cited for this title. Not re-read from the file bytes in this build.
Publisher: The authors
Version: Historic library file sidechains1.pdf.
Document ID: BLC-PDF-0004
DOI: None recorded
Last reviewed: 1 October 2026
Licence: No licence recorded. Rights status under review.

No hash is published. This build does not store those PDF bytes, so a checksum would be invented. Where a legacy path exists, it points at the Internet Archive copy of the old library.

Direct answer

The library holds the pegged-sidechains paper associated with Adam Back and co-authors: a chain beside Bitcoin, with a two-way peg so coins can move across and back.

Authors are recorded as Back et al., which is what this library already says. The full author list was not re-typed from the file.

Why it is in the corpus

It is an early statement that a new feature can be tried on another chain without changing the base chain's rules for everyone.

Where to read

Official source — Commonly cited PDF
Legacy library pathThe old URL stays. It is served from the Internet Archive copy of the previous site.

Legacy path remains. Full text is not republished.

Full text

Full text is not published on this page. Public availability is not a licence to republish a document. Blockchain Lab has not recorded a licence that permits an HTML transcription, a training set, or a retrieval corpus of the paper. Text on this page is Blockchain Lab's own wording, or a pointer to a study that is also Blockchain Lab's wording.

Claims and assumptions

Blockchain Lab's reading of what the document is doing. Not a quotation and not the source text.

A peg locks coins on one chain and represents them on another.

Assumptions

The lock and the unlock are enforced by the chains named in the paper. A custodian with a key is a different product.

What changed

Later bridges often replaced the paper's peg with a signer set. Those are not this document. See the bridge failure notes.

Relationships

Related riskWhere bridges fail
ConceptBridge
Base chainBitcoin

Cite this record

These citations point at the source document. They are not a licence to copy it.

Author–date

al, B. E. (2014). Enabling Blockchain Innovations with Pegged Sidechains. The authors. https://blockstream.com/sidechains.pdf

BibTeX

@techreport{peggedsidechains2014,
  title = {Enabling Blockchain Innovations with Pegged Sidechains},
  author = {Back et al.},
  year = {2014},
  institution = {The authors},
  url = {https://blockstream.com/sidechains.pdf},
  note = {Rights status: Rights uncertain. Blockchain Lab record: https://blockchainlab.com/research/corpus/papers/pegged-sidechains}
}

RIS

TY  - RPRT
TI  - Enabling Blockchain Innovations with Pegged Sidechains
AU  - Back et al.
PY  - 2014
PB  - The authors
UR  - https://blockstream.com/sidechains.pdf
N1  - Rights status: Rights uncertain
ER  -

CSL-JSON

[
  {
    "type": "report",
    "id": "BLC-PDF-0004",
    "title": "Enabling Blockchain Innovations with Pegged Sidechains",
    "author": [
      {
        "literal": "Back et al."
      }
    ],
    "issued": {
      "date-parts": [
        [
          2014
        ]
      ]
    },
    "publisher": "The authors",
    "URL": "https://blockstream.com/sidechains.pdf",
    "note": "Rights status: Rights uncertain. Not a licence to republish the paper."
  }
]

JSON BibTeX file RIS file CSL-JSON

Rights record

Source status: Historic library path
Use status: Legacy path remains. Full text is not republished.
Rights: Rights uncertain
Training and retrieval: Not permitted from this site. There is no rights-cleared full text to retrieve or to train on.

Rights and licensing Corrections