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 0xd34ffcb7edfab052672a19b11ca1634ebc42b302b14de37efce2be9496728020. 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/599821f7-a242-4fac-9c78-59613a7ba6f2.json and https://artists.proofprofile.net/proofs/artist/599821f7-a242-4fac-9c78-59613a7ba6f2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Run & Hide - Remixed (Ulf Kleiner Downbeat Edition)
Pocket Full of Dreams (Matthias Vogt Remix)
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 0xb33c84096bea9c16e41e372b72364de0827e9fcaf126f6b623154f8dce8c1013. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/DESW62400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d19351b4114316afca5c025f2d5f71165816ad3a6b04447251d9a71b615b18. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/DESW62400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c409eef48efd63d75244698ea4498ae7d20c83115ba25fdeca3e216f5e10a7. 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/DEA891700359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725ee3c12ba0d681898bda2c1cadea1392fc3f04bc3c4a6e5cb822dadfa3d321. 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/DEA891700358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db7c700f20eecac1256de912cd7d3e9d855f472290dc2bbf605c8d9966097b8. 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/DEA891700360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd426be90e96a08413fef023a469e8c39cdaa53f4a33c8d166ef1a03bf6523ceb. 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/DEA891700364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0515f9211e459ec3591efbfa1435b5c5c1adbbc6b9d7ff66507b6c9502fbb0e. 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/DEA891700355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a301e0d4067f2d28a7c6276e50a2a77bcd17092863040291ca8f290c3991d0. 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/DEA891700357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e56be34ee4520c7bdbbeb3dc8c6627d7ad4ddf9ab804ece80e6b3b0ebe6dd3. 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/DEA891700362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f5d4b7e08a5e0d762f688838556f582d90218db7b8eca12868c23ea4b6b734. 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/DEA891700356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2da3aeba56a943a169a467189a2f347e15753cf02ee3eb4d25ba9e2f3fb0df5. 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/DEA891700366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5c2e6239184c6e70deae94fa754c387b3873c7edb01bfbb91d11a7599a8b1c. 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/DEA891700367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b9148d5d7deafd51a2f7e7d57670912e27468c7b9581301c520c59aeb1e069. 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/DEA891700361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa8142417b02aaba30f0916a73933fbccee48d4348f2d39f6e1c008a08d3a3d. 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/DEA891700363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07decc8afd6a24f95a8a47789dea438927abd3693382c5a21a92c1da40acac7. 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/DEA891700365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc526f586467fb6b83b0bdb2963c280f5020156c2d976304d75aed76bc7e2a9db. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/DEE281760605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46ec1b0f73661b07ad22a6ad3c743bf1930fc5e4437dac75095848ce0533061. 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/GBPFW2400283.