thumb|Bent Van Looy thumb|Niek Meul Das Pop is a Belgian band founded in Ghent by school friends Reinhard Vanbergen, Niek Meul, Lieven Moors and Bent Van Looy. They perform in English, but have also r
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 0x68f6d03286b2ab22af4d8164bf1e5e3d58673c7665f993871878ce96810d68ff. 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/bf44f54a-ec69-443e-81e9-76c1531198bc.json and https://artists.proofprofile.net/proofs/artist/bf44f54a-ec69-443e-81e9-76c1531198bc.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 0xa42a9a374a04749f40e13708b2ddaa947a377021581bc197566d5e79b0513904. 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/BEP019920801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3330e96ccebecfef43184b19c82e2fd572ad49d79d831e1eb73a9b337a4f1e9d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BEP010013506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0998143d5706908dfbf48ec33dda126e1d0103237036df20ea4cfa70ae8ea68. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/BEP010013508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d1562596fccd72a4179c0dd4a09ae73193e3c7936c7c738053d0b169f1f3f7. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/BEJ481100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c431857b5a14198c90a40e459ac855329fef65a35f7244698a97c6bfb6b0ff. 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/BEY340300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0acf1765c369ca5f2392a6dd1058b53fcf6edd255f36c3a2c849e287a72e50fd. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/BEN580900314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9cb00b944ed08b0e301252d6f162360ac0a7381e3d7f7e7d2589e499a3678ff. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BEN580900320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5f47137d89a3e0019b0d3a7e13dee52759e340c123b4ecdd0ec14109798585. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/GBPQS0700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8235158c5d166a9166d90ff20f95a33ea11a63746ed5a7e42477f285818ddcea. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/BEJ481100002.
Kitsuné X Ponystep Mixed by Jerry Bouthier
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde73e7f31366ec47f73616b9d76a9edbf72309ea7db92dd8f24419fff4f8a108. 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/FRU701000062.