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 0xe1849a0cb5613e4ceb2218460aebb8e01acdf87ab54b00634aa7006baf7a70a0. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e147136c-4a26-4752-8861-bedac2f93626.json and https://artists.proofprofile.net/proofs/artist/e147136c-4a26-4752-8861-bedac2f93626.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 0xadd59ee356d0977599796e81fbb9d5a51fc5ffe885cee5747a1f9783b8cf325c. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FR59R2067905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb72b4956502f79655ac6bfcf79b8e30890a294a72eb758eac4f1629ec3b7c8b. 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/FR59R2067906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3dff4859469e51144d75e44c9200cd0f80deea9155d102cb6a3a65f041f557. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/FR59R2067908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3fb08a0726a778a637a914ea8f5ecac9d3b6aa30412f9b43360a85208fa579. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FR59R2067909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4132fa41511a3befdd30e8a299a73b86ad594b49fda204340faeddd15d1e3ed6. 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/FR59R2067910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2a46204d89ce87cdf13886adcdea1490b2945310741bba549f4681758bf0dd. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/FR59R2067911.
STORM CHASER (COBRA RASTEIRA) X LINN DA QUEBRADA X PININGA REWORK
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f695e7a54c5f8e26762e28f6b0607df2f39ab94095ef458a88f0722dbc69ce3. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/DEG931912854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082efb4dd1b4e5d6e4635535157cfae3874c37a98884491bc6983c8f1c3c7715. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/DEG931913066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f695e7a54c5f8e26762e28f6b0607df2f39ab94095ef458a88f0722dbc69ce3. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/DEG931912854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d6bf532b0b1b5372e1aa57f286e7d6b6bd845a373aa44555b8f6c047465f2e. 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/DEG931913067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8088b4d001f2d4ec147b3df6aa7a1923422ba31004a94aa6846ff6525fdcd44c. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEG931913068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eebffd6424628f49372fe3eb153039af436ad0370b870fb47d9eb31036168a3. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEG931913069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fec46028504adb419358f0e23beee94b144893bb8f52441b4881dcdade10d4d. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/DEG931913071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd446f875e18d318749b14fedfef8d30f3500ac2e80b7ad30bb84a6ab69fcbc84. 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/BXIPO2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ca2e00a1685a376d88e5d4bea4a6095c5c3de49f1bdfbb812e51d967d506fc. 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/BXIPO2000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644cb4600acda2bf81c3303b0c992aab29184e3f843c8e9b3b0644ef984918fb. 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/BXIPO2000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbaa4d71a1e80464639116dd6669986ada3d7d5b76a4a09f653bcbef421acb3b. 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/BXIPO2000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efab3f1642cec61a8fdac941ffb52727fbaf0b100b4dc72d19ab029911d4e5f. 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/BXIPO2000017.
Alice Guel & Pov3da * Bomba Pra Caralho (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b931fda41bdcc4fefb94c0921a854efbb876270e9eb12ea629475a3852a245. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BXIPO2000018.
Potyguara Bardo & Tinoc * Submissa (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd111b700fea3bf07f87180595d3534b3fd78701ce36f89a30a090ba962a4f7de. 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/BXIPO2000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87bab9b53e86defb1dbca3c1f293bf777509c58326759efa5081e78e173d44b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BXIPO2000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0f766ecf60c1cc225ae43e026e0b04ae446005b69088ff713582d752e11a5c. 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/BXIPO2000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc1906ae4f58bd4be3b98e1fdd399506ebe7c6cf29a110c2a6722c2a10188f1. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/BXIPO2000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b95f2c3a6351913301bf62206cb244892f1f66e26903babf20762acd997056. 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/BXIPO2000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead875b03b19aafdf2e6325eebaaf4e302e5e000e28dd0810ff0d43f0a21d89c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BXIPO2000024.
Jup do Bairro & Sanvtto * Bixa Preta Parte 2 (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7107c60b3c5c22cef837915fb9acfd753cd8e1b5167dec87a48e32a519d43e9. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/BXIPO2000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9275f8b1a3f2711bc1ec5d3dcc5db3228a6d5be04a1b5775266e2ca434042560. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FRS182044474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6905219cee45f06e713205713fc6a4332febda3fefb24f82d43f8e66bb9187e. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/FRS182044477.