Mikael Rickfors (born 4 December 1948) is a Swedish singer and songwriter. From 1968, he was the lead singer and bass guitarist in Swedish band Bamboo. The band released two singles before breaking up
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 0x21886d86470cbb8406a11b98bd0ffeb3fdbcaf8f96f2d706b3d0e8f2801871fc. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ab23c1e-623b-4d67-8f7a-b77dd7c005ce.json and https://artists.proofprofile.net/proofs/artist/8ab23c1e-623b-4d67-8f7a-b77dd7c005ce.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 0xfb34e64517b70d7fd18157b989c0d480532f2f9c1e56f6b937cadb9b0684c408. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/SEBGA1100300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5109837be4fa76cd883258a5d978757776c688d4ca977ce15a0878e289f4fe3. 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/SEPQD9124010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5f5b0a07e857f8d444a376ac9c77fe05cf10e68eb451fa24eeecfd6a7b62b3. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SEPQD9223010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa099c356348caed161844211dbd5fd7379676d9aeeb69bae8d7c1966ac0cccff. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/SEPQD9223020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df9f846827a1650eb9fc42cc2baadb40597f8da48d703f1c7af2762acf35e97. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SEPQD9223030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c2461635005eaff09ec345d32242a1787b1f0bb3cfcc76734dd025dcf34422. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/SEPQD9223040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a6cfacddb22e2f527c10ac3faabf27722d2af6066264ebd4c2dbccd81b83b5. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/SEPQD9223060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fec379f476469c39de9353e7b7739271619653ecb0d5a4f20c70793dc2434b4. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/SEPQD9223070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433ba637f9590d97e23626fc6b6657c16b49b0b23cb0cd21b22267c3c57dc7af. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/SEBFO8102010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63798e441a1bcdb9fb715003628c6e5669d3105bd50356f6b3ead10c7f302ad5. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:53:50Z), 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/SEVTG0401040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5109837be4fa76cd883258a5d978757776c688d4ca977ce15a0878e289f4fe3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SEPQD9124010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9229d2fdc364014db1dbe292eb67fd227342771f18d37f8a6db986dd0d39683. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SEPQC9017070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3eb11610133856e581de4152da9908eeb0c7da3e9baca568312024ad82ec73b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SEALE1906001.
Vingar (Jag Ska Köpa Vingar För Pengarna)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ad49602cc00bd05ab4c2b73ff38e8144e6d5f846781df1ccc77c11b6131807. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/SEALE2304013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5109837be4fa76cd883258a5d978757776c688d4ca977ce15a0878e289f4fe3. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/SEPQD9124010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5109837be4fa76cd883258a5d978757776c688d4ca977ce15a0878e289f4fe3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/SEPQD9124010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfdd1d71847290cd178f6f80c5238a936d738d038366bdcc00a713801bd0829. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SELDA9400110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5109837be4fa76cd883258a5d978757776c688d4ca977ce15a0878e289f4fe3. 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/SEPQD9124010.