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 0x2e1734195b50c7445e202aa558c036b3e939679cd87509f5cbe6e275df63ee02. 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/d077679d-f74f-45db-8b54-7e9f74c5e688.json and https://artists.proofprofile.net/proofs/artist/d077679d-f74f-45db-8b54-7e9f74c5e688.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 0x51a32cf7414e54085d23540a90f76c18f7d84c0267a9b39647853f0c1530ea81. 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/NLS760600060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d3e839a1b74cbf872a7909b64a9e67eb96a6ff50500848b281b3c39631bc57. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/NLS760600212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b195c7b640f2dd38fafd5d79fc652784d4415c85d45c7597163e6fe224e5aaa. 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/NLS760600269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f6b9de549d572f9c161e366ff7027d12f3e19d61b64452d4b0e8e1b48bdeb8. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/NLS760600270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57fe31e3383c8d2374b29b4e918c1add310a68156ecaf901b9845f196f21339a. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/NLS760600380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05eba104b00f298e2ae830b70f066dfadbbc19a30c8c427ca27bfd901c518e57. 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/NLS760600379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ed6a87464a039f299cf0278ff6684094f76f7c265256b4b655b48d2630c02d. 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/NLS760600381.
A-lusion & Scope DJ present Second Identity
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a911d6721dfeb4ad61a59a95e9f39f91edc3318fed924fd03669eabeea7675. 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/NLS761000078.
Talk Iz Tomorrow (Second Identity Remix) - CD Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13a35ed4ea61aea1db775a6f4d45034a08d050d56db2c538a662f8bdea719f2. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/NLS761000085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77cb6278ca8ba39ba3b9a166ce496e84b9baddab67fad44b854b3044e5d37c63. 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/NLS761000087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ceee473bfad494b20e6b60fd4b1f197854eb96f9f377ba4e2a6fab4062e20cb. 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/NLS761000118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24cedbfc4f35df5ad208734d65dfd92afe04777460c6ad5228307ed9d8170aab. 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/NLS761000106.
A-lusion & Scope DJ present Second Identity Album Sampler 001
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e998bf14347638eed56e5f9cecc2a7675f9b9c576714e44873452dfe68e2bf4. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/NLS761000092.
X-Bone 005 [Sound of Pryme (Official Pryme Anthem 2011)]
Scantraxx 053 (Angels Dance / Don't Wanna Know)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42ec734fe77b1d4b84ffb7ef4e2d54a379533af7f8d3ee94265ffce9d9379e1. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBKQU1286266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed3400e3061a3535234bd13d28e5a499b269267623e94e14f4006f63b1c8208. 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/NLVN91400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9adc6e1855dd63564ad39d95e6c87e25df708fe4d52ea74e1d34f756e1ac427b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NLVN91600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a15fffc7215a1a236e05c198e08eb1bfc61c6096a360fe0dca28f3fdf9b9420. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/NLS761900082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa16c5e772daf52abf49957e2d998fb85163bd63eb486378feaa6ca91f45c920c. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NLCY30801735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79227ec0e0fa1deebf2512f29dbbecdea4cce29503b3e30a31f298b3d8d40573. 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/NLS761900074.