XL1 is the second solo album by Buzzcocks frontman Pete Shelley. It was released in 1983 and reached number 42 in the UK Albums Chart, remaining in that listing for four weeks. The single "Telephone O
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031f0753db5552a641d0b6abba607f4df1e68ac7759f665e46d313d48fa82fe2. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2fbb510f-1941-4469-9b64-0559ddff1c7f.json and https://artists.proofprofile.net/proofs/artist/2fbb510f-1941-4469-9b64-0559ddff1c7f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380613070b754fb01a31b755d2c82c8ca61ec1179549459eeff8bacb5e318b33. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAIS2436483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb2af091b5954666df1776bbee901af879995e80b0bcda1e234ba4a077bb43e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAIN2473526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbffb403e209da99f836a3d5eff7e0b3ce95bc31d45fb6454a00c57b6cf5230bd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAII2464644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150ea3b8db16e84b34816d944596486ccebc60c43e0f4af163f5cf538e23ac8a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGH2293690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c58932c72cfd41114504e7ef3f257631aa93966e7cc8bc354ac798f4e79609. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGE2250272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492670c6079325062fae42c43e39d19ffe8dc899002a98be13931a510d94479e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAES2087843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376e18fe9df423ebceedea957491a7b1c3f122d5a31195dd8d6fd8d3f6b40517. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADW1836513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b7bb7f28f6797c7ce0849492b51695c85cab1c84511fdcad479d0518112e2a. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T15:11:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADW1836515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986903ae1f37cf5ba3b854449f47f27eb8220181925ce12c7cf9301ef311aec6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADX1881160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b8718b8614bbe64812e111a70be8383bbe0eccbfcfc198d8d5662636da0908. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAEH1921602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44633b40bd08d0ab846c9f313e1e5dbf9851fa12dcefe61169bc35053c22f3cd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGQ2290920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c5f009e8bd12136ee897a2d4ee7c48e10823d861a03fa9535bfb5331f8ce94. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGQ2290963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1c0df7c693cca2b706253f6e233d0a01445301c61b3f5f19ea32cc715131ba. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFL2131191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0be59881048db7a4f652ec4dd5ea4cead1b1833e360131f134562a4b907b66. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFL2131209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3c422d1ab067a465ae375d5a161b39680cdb33bfeddd893cf69ae947ac2018. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFL2131221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0eae0d054e210191e6c9634b9e7143614696cd79cfaa72695859624dda4018d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJF2585185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f924051303a73465e06c81e8ebff77734f03c75701105fa15d49f3d6f7fe36b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAHX2498519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40890b4afabdd35caa3643ce3c10fbc0880b1a106c3239684ce3e083887cc9c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAHJ2378197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e466ed4e287a0144396676823ad6e79bbeb599265cc79a9d24b59da532b8de4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAHD2307783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f31ea9ad7223dc261663f3b4679cb3d1f062d874fa61af7c73e1a9df472a294. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGZ2302145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45757004cbb0b89f31999ed49c0e0fdea95811032ad2f113f5204196a5c7ced1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAER2047371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872c66ac6c1c68184b27ecb5589903caedbd94651285f692c551396705a15e79. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYW2050460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6e0546a27323e6ae49d59c3eb6713a3c8f8c9009dfec0224ee16ab8306472f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAEO1962697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed78753ec17a60ba02fec90459e975002f9c398459a09793df2d1efbbe37538. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAEI1961441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb9159e97cd777e45ab0a7a9e64994e2381eafcda2abb5c713486a5d19941ce. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADN1806252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18686045a6f0b831037405afe5d2435faf8ab8695c4a1fcea108afcb258b8713. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADN1806255.