The Merrymakers is a Swedish music duo composed of Anders Hellgren and David Myhr. Former members are Thomas Nyström, Kenneth Berg, Patrik Bergman and Peter Arffman. Hellgren and Myhr have been makin
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 0x2e7da27ab0be1e5742ff4a4f8a50185e014441d13511999d3066a9c2e59715ae. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b619583-d477-447c-badf-f10e9ce62572.json and https://artists.proofprofile.net/proofs/artist/2b619583-d477-447c-badf-f10e9ce62572.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 0x860ceb737743f6979e7a3c3a9086a642b8099f98ae020735e80918ac69c4f2e6. 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/SEBIA9721010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74cf5f3f68e9a4b20b6fe41b47bc8aec3881314246bdf0e2cdddcccedc3a04a5. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/SEBIA9720010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db4641b544aafa9a0558a9a0b8466ad2bb78b346ae824aab80038c851a9fcbe. 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/SEBIA9721020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615bd031a6c9a943c08da07ef5c12ada90b118090b7a73917895646c9ee883ad. 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/SEBIA9721030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe615256d40d446e25116424a748d3711cde0f1af13641f4ab395e8da6beff77. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/SEBIA9721040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa3489489cd99cfffbddbfb48927d1186cc8b6608ae0e773c7a58ac298ac3f6. 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/SEBIA9721050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2db37d18902dca79a662e0c452711e210facc88e7858f74be002052a2b7c78. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/SEBIA9721060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878706a80abbd98376f301c3f3fbb35fbeefb7ed37993f609a4b848f6f485f3f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SEBIA9721070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205a992d4ee18ecc591ec0b0951b327f2799cf7cba139feef9591688cc6c2230. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SEBIA9721080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ba8076715649411ac2533c6595b20dcf8b94bda0ce0b5cf19b17853b58fa7a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SEBIA9721091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0577d412bffe6c0b214c2e6cbafa0c9cfa2c4c55cdbe7c0fd1d170459175588. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/SEBIA9721100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1993a1f7b3d67bd351f42fc29eff289616e4f6c5a9b8bf03f2492a53c126162a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SEBIA9721110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c86de662cf0c72cc17ceebaa7de84a0f0b58b925de5ae9e6fd43d25efe208a0. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/SEBIA9721120.
Somebody Made For Me - Bonus Track Australia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8891e35d478eff06df11813617b7ec8f7304ddccdad037a6425bd1ebb8e27f23. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/SEYLY0100101.
Superstar - Bonus Track U.S. Version W/ Alternate Lead Vocal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0874b363d5be3c4da0b1f104ebe3acfcbe1dc16eaa78f52e05ea5b80610ab4d3. Chain 2 (Bitcoin): anchored in block 957249 (2026-07-09T02:31:37Z), 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/SEBIA9720013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c3b6b646fa65a46dd25a4e63ac3aa199f5becc08b5f29dc5e678bd06fe13c0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SEBFT9210010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f45f24cc5b50a3b419ba990563e351126044fb7c22bf2985d1b3bdff6e565f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR2X41552467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd25fcb6cab1c6833a9551804b5ac5f020a474ced3cf11685029b505f5e369fc7. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/FR2X41552468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2edb96e3d21f4140a775ab760a423190ba2a8d50746fe8d6ae66baa01c8524a5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR2X41552469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bed579daa405a7e16db91460fdc18f5b52f3be378d410e988c56c89c065b916. 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/FR2X41552471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc641e410d5bae03132814f8d725531a09c8528f45d0a9efd0a95c1738a0975. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/FR2X41552472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a31b2d29b4d9e1424b281acfefedc62bf1f218118959649424df62f3995c1e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR2X41552473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e7d70a8d64114330f0bcd0f14a6a9861af224366b4b0249e7d4aba9b512a16. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR2X41552474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d922cb66cc79def906a7f122d9dfbb74e72da2b8c1a2046d9476982a69a1c4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SEYLY0100201.
All I Want for Christmas Is You: Karaoke Christmas Music Party, Santa Claus Is Coming to Town, Mistletoe, Santa Baby & More!
All I Want for Christmas Is You: Karaoke Christmas Party Playlist 2013, Santa Claus Is Coming to Town, Mistletoe, Santa Baby & More!