Räserbajs was a Swedish punk rock band formed in 1990 in Alingsås by Richard Stark and Erik Hjortstam. They released many singles but only one album, Noppriga tights och moonboots from 1995. The band
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 0xb7258b475a9c101016025e7db611c23aecfae05bc99a84ff3edf77feb4352ebf. 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/bc296f84-70b3-4731-ab96-7082da4e723b.json and https://artists.proofprofile.net/proofs/artist/bc296f84-70b3-4731-ab96-7082da4e723b.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 0xfcbe74fde7cdc42e228d9a71243f736e0cea2bda14a54ebcab7b28a64e08582e. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:33:45Z), 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/SEVBZ1800302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73a464fc7661285ec2d6b538a615f6db25969f2f4415ff2ba874e9258e02fa6. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:17:43Z), 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/SEVBZ1107903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ddc5987c949e8db961db157b1f6c44a1b0a6a2b1cd89b26bf16765739ed8ee. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/SEVBZ1107904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf647849cf4e98fd97bee1565c3976f07f7f56922cc82f1a8b131ff0e4158ef5b. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:50:49Z), 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/SEVBZ1107002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655f4caeee2848e571fb49f1bca96b361f1c56d3778e26148f9ecf7f7b2339f0. 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/SEVBZ1107005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de67471a935393ebd63feb5024c375f4011bb302d8b7735980ee676c4188cfd. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:42:21Z), 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/SEVBZ1107006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dcf80ab970b840782dc051c1791cf57b64974aba01d3bc29895e2c7ff9f1010. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/SEVBZ1107007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d82e56f1a00ee8c6cb273894e0a49df2d45e2d34a5048524376b29b6e34811. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:13:20Z), 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/SEVBZ1107008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18287312065c24d40940e1c8ab9e6b8f9882883761cd36e3f93e050c8fe24df7. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/SEVBZ1107012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2249250902ab526abb44499588e1ad88b772d322b389be68e3abeb7403fdc31. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:01:23Z), 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/SEVBZ1107013.