Roosbeef is a Dutch band from Duiven formed around singer-songwriter Roos Rebergen. They are acclaimed for their original lyrics and musical style. Rebergen describes their style as melodic pop music
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 0x63e5b5deb6f5276d5df316546647c06480e7c07bb342f761c456e93d73016c9f. 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/73e512ee-656e-4e3f-b6b4-5237411d3605.json and https://artists.proofprofile.net/proofs/artist/73e512ee-656e-4e3f-b6b4-5237411d3605.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ze Willen Wel Je Hond Aaien Maar Niet Met Je Praten
Ze willen wel je hond aaien maar niet met je praten
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 0x1019768639ebb858bbf66e5460fc9ebb9acf8d08b99ba28c05a731d88378fb05. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/NLYC61700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb65b905a6f0b122b5879cbaa4d328104d659fe1dd5515ee1d4e4e799cdc395. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:35:34Z), 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/NLYC61700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a41ad42d43d286a26641a5322c007eb33b896e8e95cd812ea9e78f59858228. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/NLYC61700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf47e4c6c36ac4b13ccfe98ae0fc57fe42f6e133fd2328fef41d0c12258815c4. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:49:38Z), 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/NLYC61700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafc4c271dd09e48cee08b6dbe15730144dc0b7e025dfb2540de670fb1deed0f. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/NLYC61700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf5cdb57866f44c3b28848a40d715fe7fc57eb674391468393f9b8c8dd5cce61. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/NLB601100109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61615e1e7bd69f42a70b42e344c5da299a6bd1615caccb809d6a873f1fab2bc0. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/NLB601100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e80b864f5be67252fbacde2502cb8232e7ea7ded4a35eb3d2e15fc17a274e8. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/NLB601100111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56bef623f6bc2b307fb256296ffcc40d8d750510cebb5d8f32abbe8dda2baea7. 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/NLB601100112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f974138d7cad34e832124683e0e0ed9b18d3dbfcc8ccb48adb07cb06a99d7c2. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/NLB601200228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495a7e2f45dfc8225891521ceac0c7f8239c9e23ba52ac6d614fb584f380c3ac. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/NLYC61400213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b62514360a44bffa4bcb193c7d2bbec2c903f05ba1422c0722e6c6810c9f2e9. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/NLYC61400207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c0a80042cd6aa852aeb970abb3d5d93ea888ea0e805c1b91852045313725b7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NLYC61400216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088242100b484ae5794979b1c5a37670c18a8f927b2746ce3e39075adea9aefe. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/NLYC61400219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010fb34647ad6cf5f71e7e3639d6d6dcb7678e7f76bf901c4ba0e0e84c6bd1ae. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/NLYC61900094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28dae4365149f935b232d6e686dbeefe7834f10d0220874f3826496c9ddac4ed. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/NLYC61900099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddaf8b370e258028f1108e3e6d527f678b1d687b4125df636004f0903c97a01b. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/NLYC62200080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ea1607e0bcf9abd1dc5f5aa534df77e36d14b745aa86b56435f046ad7666a2. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:46:27Z), 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/NLYC62200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7812846ee60a8d45492f97b4f426b9c48b034adb8c98447a99f6471eed9c16. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NLYC62200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9ad5c87412f47c01b9d746ceb13ba0c3855f4b88d209147efc87b6fd1f593a. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/NLYC62300084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61f3f0a8a2ee7208d05640ea934d46f2ba9c3b8039a493c0f13ee4d44706059. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BEK012400409.