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 0x52dd5ac86f33cc15b51e4b1a595cbe0511e381151e6dd544c772ae1c5d09b0db. 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/543fe44d-027e-48cd-a7fa-3c9b8fbdea6b.json and https://artists.proofprofile.net/proofs/artist/543fe44d-027e-48cd-a7fa-3c9b8fbdea6b.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 0xf3ea5fb28f5f4d619f7d906e963b1adffd5958660606fa7b82b56a2e3c369f80. 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/FR2X42046171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7be7650d1e6cc5583122bdbe741bb170a696a687c06437e9741e93425a469d1. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/FR2X42052375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047e7cbc17db4d3891e69f77089199a5cc8402a5673510984924be3613712811. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR2X42052379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79969ead9a0d00e1cceca34335f333fd7512b4b9e059f7e9ebf97f0cac5f153c. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/FR2X42077729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821acacebd6744206fc7ac92a7d589d5799d671ba85bdd6f505991fa6e30a0f0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR2X42077732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb816e036f4b1301ff57ef10fa84f277d668160b92275b573189a753b24fd005c. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/FR2X42077734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd916f9435b04d5584287033895dbc8fb33b49f75ecc60bd37e3d7ba5868652. 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/FR2X42077735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d85261d91e609e39b9af53aa16e9effe31967b64dae430487684f174048573. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/FR2X42077736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b193594e4f3a91c5fdb5dc4a68b9206621abcafaff3b510208fb0cfcc1767b. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/FR2X42077737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91f0f78268f5ba06c197841ac5072172d691345c81768db4c13fd0f8b3caab5. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/FR2X42077738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0068b4867f396c586278b48d99b7616151b476f428c7fcc03da800c6d79faee. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR2X42077744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d53336cdc36a51ddce53609efe73d2162114ba51c90808df8b841438fd2d8d3. 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/DGA0P2311489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5c2ead9749dde96622cfc199ca72768ee07901ca8e1b541dffba30a0a23b4e. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/DGA0P2311490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf506715b0fc9f3432db753a09c2020d62a91a730f9988f33c0d009c6d6c731e6. 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/DGA0P2311494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b6b6f47155b98600f59880308edc0c1d28fd26a5ff5e126760b1cc21d4d187. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/DGA072493288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21314f820e4d68bd7cb9caf707c17fc3171a8f6466fd245544ef2cd1d0ff2a8. 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/DGA072493289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede1019c2ee59cd501693cc4c77358c3bb14a16b98cb097c4e47b8a2008cd642. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DGA072493291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd14dfe46c2f5bd9a52bf95e461e152d75b86bf505ca49521710b231ef4e9633. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/DGA072493292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb051661982f20b2f2bae7cbd0274318050dd7c249cf4a8e0a35276e4f108ace5. 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/DGA072493294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089f13e05c71306dd12f7f0957c07594c1accc95b27da752d7e9dc78a460cb75. 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/FRX202550539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd706c83e936e230d03c5eca14786dc4eea41803233baa39c89b288f2a164c5b1. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/FRX202550540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01c9a6e4334f057c106e8b64acebcc1b158988a2e2380c601c709f7c1d8fde5. 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/FRX202550541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6236e36792709b6fba2dbd172fb9fbf19a81dceacc9179f2977d817bcdbd07. 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/FRX202550542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc75b287a8c6b1360eac38593ad41e4851c19759c7d2f95fd9a93b3b9bd938b4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FRX202550543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce07a24456015731efca9f437bd208c8fbd31f64c1332c59e5e1861adb10e8e5. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/FRX202550544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb0b36cde65378b47b2ff6a4b46aadb38fca3e5250bf486f7dd1a740a8c4fe2. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/FRX202550545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfff340d7d9d21cad940785866a7d26a19fd17a377bf05b6b94218303905925. 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/FRX202550546.
Gazgolder club presents Deep House Moscow
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f4531c6f27deaaf65505fd7516894e7c9c8bbee8a3b988a46abaf63b354d40. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBKQU2141310.