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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782eae77c598f6efecba73e24e07b4606de4478177499dd6265d3dacc954e1d9. 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/39fead74-2df3-4be3-bb0f-12dd1c1125c9.json and https://artists.proofprofile.net/proofs/artist/39fead74-2df3-4be3-bb0f-12dd1c1125c9.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad1fde27a0743840158bd75e30fe39bddf44ceb945e13610984d812a3305b146. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QMFMG2323268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029ef1dfa7a83ea4d83da82583c55c8cc45eb5da6674938f85f7794c7cb2b0cf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BCLXC2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6cb91e4f0814c2a7ac6cf6886828b89d8afa4d58d0d5a8b1ba5e901c22c3bfa. 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/BCLXC2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0391873f320ea1fffd6994604fd2ce09617f6d191bc781905e2e71ab89a9fd3c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BCLXC2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60cdf3a0c36237cfa1cff051b4de733bc8a361ce12d321db4f52da799952592f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BCLXC2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ca19a871bb70ffcecd2d22b572cafaba48ca48d7a18848541c1de1c8aee4be. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BXZGA2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52bf476abe848de8a87123e7ccc2d3b39bdf534ef55d7384c333429d2acf3dc. 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/BCLXC2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d584d98b118afe64aae63070212a5eca00c2b9c7855bffad3508a29e8c28bc. 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/BCLXC2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787cce6fae44713fc6960b01479f96e870923fd2f682d3aeb8126974bb38f0b1. 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/BCLXC2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a7e86dd6ee427ae029b65e8eb28f221170320b7a28b32e6c7160597a280ba7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BCIH82206302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4293c240781c2ea3a70276bac86ff1f83cee1f9e7097f24d756fa5ad05fb71. 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/BCLXC2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca4ea70dab680bba5573fc17b2bc1cc8f231890df7a9e285118dcfdf98be5ea. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BCLXC2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a401e0ffd80d227c30ba8e267b2c3cbc2d77ebc07cb826fca20dd742c32459. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BCLXC2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e34a5f5cce58e39c0c86796a130c01041a5e15b04a89f365f7c0a220a55abc3. 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/BCE7P2200624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9804bb181f9b844eaec7c180054721723281274b527aca008904977a55f4b5d5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USANG2237379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18abe3d3954f33490f75fad51d7a855d60c2b35a5406394a3f04d5c7ff5b1852. 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/BCD592100113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb9f420833e87d58e6c493393673e47162328d9830ff54f0b3489b2afa7694b. 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/BCKKP2100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eda9de8b8b7d797bf680ddc18718e464016e3863f2f8222f9d7713050651921. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZEQU2121268.
Borel Acústico #2: Lembra da Gente Fazendo Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07cc1e732439fc518f8a848389d7ad616591c536c570f2ba49b8dd856192cca3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US7VG2031844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3292e6fc608eadabca6b52197c3e5f322d6a865024f3539c87e99dae6d8a6b8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BXZGA1900013.
Bebêeee Ai Que Saudade de Sentar pra Você!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2ee008a5b83146cb2be648c3f83d79fdac2a7549ec28862464ef4fe4593b12. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXZGA1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76900cf41967f0b778898c8e7334ff4a1fb214b0b776dbfddb525cb46e5d6609. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZGLS1959537.
Borel Acústico #1: Ao Som de Voz e Violão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ae748c2f8e83b8d67c28b4dc36e8b43243b6a6bd5828e9b1b5dfa47881df63. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BXZGA1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43abf4a75757b14aa9d4d6d61d28c78d7b93e9be3200e69b1093a3dd50e66bc. 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/BCLXC2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc005ad43ea705235ac92478488839b0654b4f640f646136377217a9be5093c7f. 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/BCLXC2400001.
Eu Só Vou Catucar Com Força X Tomo Tomo Ta Ritmo Inicial
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1758198a2552c134a051f194a0d7cec2de952f823f3e535fb668ad192104613d. 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/BKNNO2200011.