The Mary Wallopers are an Irish folk music group based in Dundalk, County Louth, originally consisting of brothers Charles and Andrew Hendy, and Seán McKenna. In 2022 the group expanded to include Rói
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22423ef127670ffbd74aea57ac08e100ba21fc7183652a7244580fba2018306. 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/1b67fb60-7069-4b35-8bc8-38256a0f6604.json and https://artists.proofprofile.net/proofs/artist/1b67fb60-7069-4b35-8bc8-38256a0f6604.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc70ed55b82104ed1dc8f051d49c36baffbfc01554560004c84b658f289320c9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UK9AV2301178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfd21d859c964d2c6eceb82664024290c41b5c72e7fd2854372673a0d03826b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/UK9AV2301179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6081fe35e4cecb00e4bd7ca0e40e3f012a9bfc54a623561d25fb8b47222a74. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UK9AV2301180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45bed5362c94e07463081ea6fa0a04d0eb1f85175de8bbc38b92d8a4dbd939a4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/UK9AV2301181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9481c5bf32bf830678edce7ac7223c75d68af84a7c5c747358a0cc84e895f878. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UK9AV2301182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa02e84174f1dc67444c12ed28f11f45d98e6fe09a0de1c614f5599b5c210f02. 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/UK9AV2301183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb42b9ae4923e93ea6c3f67dd0fab9f8727a51f99fa8d1024bab4456b9177f2. 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/UK9AV2301184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5f84876f3d7184f80aa742f97d7c972225302374e4589980084c4de3498875. 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/UK9AV2301185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ab8b179c3b979fa9a35eb4d275a195e36cee66561dbc957fd865341c8d2c0d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UK9AV2301186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffeaca48c1a4deecb71d8d612f83d1e97db65c2e29c12b40b2a9d7d122b5505f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/UK9AV2301187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c872fc6907f2a79d19468bc632884cce141304284ba568540a0184bdf9e9ff. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UK9AV2301188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4d76fa38757635c21a81d4443738d9de8b2cbea71ca351ddfab1a704f4b070. 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/UK9AV2201329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c92e745607ed77736b8938fb6480d5a3ccf5471c8a80adfc8f7efc9d646128. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UK9AV2201330.
Cod Liver Oil & The Orange Juice - Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282519b15b1707ee811757473c22b8b8f3cc288d582958a108f6640fdace4d12. 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/UK9AV2201321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892b1e1c2f8ccd63a428ca5432c8a79874fed07a945425e1756f98a47e0bcc1f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/UK9AV2201331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb464ac593ed2061be71e150b08333fe501eb0a4d7a7d05ec2c6cb02b792042. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/UK9AV2201332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53da2c12798ee04b63da1544a762d0332032ca42b006f222c8dc9f5eab207fb1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UK9AV2201333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c5171ab353e816e91425019583d5a55ef2af5a7106b1f13552496c30c0e6e8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UK9AV2201334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb113ce6bb93128f5377f84c95179ea8e05aa31253b8bb13369794418a93e867f. 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/UK9AV2201335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedff5d7e086ba2b2faf9a1e4832208453c2e554971719005fd66c82b02af5e94. 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/UK9AV2201336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58ac8b201399bf8a1a608761e07cc1c340ba573946f44b7de4e5a95c30712ad. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UK9AV2201337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd249526dc64e65e8ef43127a93e6df21df8d0c597d8adc8f52fd783b81e53bcc. 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/UK9AV2303438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22a4bdf5bfd148ca6d95ef40fe9cd48bf83a37a1072be8a9481d747756e67c1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UK9AV2303439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43394e6f17cf5677268f2d9da9ed2f380aa61105fcaa4f2342e22ae1cf391d85. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UK9AV2303440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45bed5362c94e07463081ea6fa0a04d0eb1f85175de8bbc38b92d8a4dbd939a4. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/UK9AV2301181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ab8b179c3b979fa9a35eb4d275a195e36cee66561dbc957fd865341c8d2c0d. 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/UK9AV2301186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282519b15b1707ee811757473c22b8b8f3cc288d582958a108f6640fdace4d12. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UK9AV2201321.