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 0x5f35b06b9e061b76bb1fe1028a894c7e1f039527aea3753e4f4de8881d88cd88. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/231565c1-2b30-44a9-a608-b29bcb4026c6.json and https://artists.proofprofile.net/proofs/artist/231565c1-2b30-44a9-a608-b29bcb4026c6.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 0xdb1b4e35f7c82609ea1188900241d7eea60473e74ddafa60eea9d8b46127d7f3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZFZ22463649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23bef8a7da469ffe4a3415e42cc50f6d5b2e29de86c1a6a17151f095a7dce22a. 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/QZS672443237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b152ba4a88b0d306f6c44142577baec41b119b00ccf8e11362247e6c07f73e4. 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/QZMHK2491489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8c7991f586b00f7248cd17cbe3e33bf2ad4c31fed1d9e3b178e3883e35660e. 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/BK2242400974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70139a66db0531f8927356097bfbe78d73829111c8cc63df83824795b257e982. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BX4IU2407279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c44bf30cddfa0da7a817a92112a5df4593b7e0cd9cadc977f834ea9964408bb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BX4IU2313086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d55f6e4c05bc12c4b86f18485216135411ef3aab38eb135858392efc447245. 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/BKLZF2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2615ad271146afc514005a51e058d089ba2ddb97bc2bc8c66ae9b6a3d7549d7. 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/BKLZF2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52516866357c3dec1f9743f00e700e19662419d67785c3057c08cd494c443260. 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/BKLZF2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11d78fa715dd4bc7c69daee19a275e84281b83d8cb8261bfec6921994a54b2a. 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/BKLZF2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bbdae705ad01b72648ddef889530c885d1174af25bce7a296843cb009ae0e48. 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/BKLZF2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25bafb729c2d3dfa6006686a680332df8765e6ee2e3d55b3b92d4b440732d936. 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/BKLZF2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75714e4bab8407754a64cfbae9ff5a8efdd5c49057f30a023e194210f68296d. 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/BKLZF2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8c725df2f65e322c9a322ec7daf4df9501741a1a1370238d0c73609830c956. 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/BKLZF2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a95c33026706886e772c32a5e0fd8e18da78339dc96c736a6bb8606c7ae0df. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/BKLZF2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925f0440a570a92cbc1ae9d4eb096dfedc5afa3072128c795eb65c398f33da0e. 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/BKLZF2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9bc55ba968445dadcf6ce30fbeb3ef0656ad8ef9961226c5871230348d0c54d. 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/BKLZF2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c46c999c59f554bad61c750c26562b26b81f8b76f07f1c4914f954a170c8c4. 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/BKLZF2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910f4bc754d907120b7715cd26777130606ed63cd43358a6367703f2b61f4d9b. 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/QZGLM2459346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa928c6d6a87dc069236cfed4a90e7a8340648017d2cfbfafa3af9c5349373c42. 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/BXCKG2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e98d626fcf599b2fe46141677361866f077cd7c8e773fb651d717b35f2fad80. 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/BKQCN2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873f37d5ef10cb7e1a6a28055a875b11b6812c489bc3e9ad6cb02ff41c97333b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BC3PG2402349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e98d626fcf599b2fe46141677361866f077cd7c8e773fb651d717b35f2fad80. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKQCN2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4a9ae82922a643dbb8a67f190adc0112a8df6bb35b54b793423432441fc5b4. 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/BKQCN2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb437e58de174d286a49dd55083cbb736cf19f2e6de6160bcbfb1d131192dcd2f. 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/BKQCN2500003.
Botano (Útero Baixo) - Ataquenty - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7a3ad50016d3ee8dfa45cf77d4e464a7ca0444e6a5ff44e39bbd8ecf8ea222. 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/BKQCN2500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e01c9fba9d03f943c7c94140950bd5a52cb572a56aacfcb434392531b686b1. 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/BKQCN2500005.
Botano (Útero Baixo) - Destrutivo - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f036d23debc0cf2620a83c47bcf9565c253439d52be54c66ecac10aa16fdf7. 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/BKQCN2500006.
Botano (Útero Baixo) - Brazilian Cunt - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f8136b67fbfac283623eb651f0342cc86ecbf739016f2f901c97fecc1896cd. 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/BKQCN2500007.
Botano (Útero Baixo) - Botada no Afrolatão - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c60d9c5bfe6f242159a1b642a97223dc8c7c4df0915dc4afc6f285b781f2ad. 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/BKQCN2500008.
Botano (Útero Baixo) - Electro Safado - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc96eb862c4e186d569a14bc3579ced58ab460453b08afb20a182eb20c897819. 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/BKQCN2500009.