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 0xd3ed1adcfc8d6b32d420491d4fec5866368258ad0ab74f7c119acd4f4588bdde. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba501146-3a37-4f9f-a396-375bec5d24df.json and https://artists.proofprofile.net/proofs/artist/ba501146-3a37-4f9f-a396-375bec5d24df.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 0x32633b99c89b05efa10592418aee5fab72995c9e3c23d4342f6ead7c54bcaa2c. 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/BXG9S2000089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3cf1f97de4b674928f884ded61aaf3b0c098ee3b4dfc0d6d88cdb0001f0207. 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/BXHBP1900387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a2fb118f7cc92af49490884cf349709b9549bd8d6c01cd2cc8847a4b54d692. 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/BC5LB2200095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0bfd4731e9635a9dbe3a8e04504c0721eca74931abee305325cc2127967b41. 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/BXH5F1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47323e178e4ef5620c801d290f7dbd337e4535e53d2c7a3bec977f4435de33c2. 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/BRUDN2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac1d712ea62c9645791d11fc298a5c011dc62d1a841bfe794742cd3a7efa552. 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/BXWPS2000148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11895270fd3feacb53c9ab5dfbd0b46dded1ad3a48ec4887e0dd5ce6f93cc87. 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/BXWPS2000052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe5b7ecbc6e22d2f0ecd63b74c2f41f179eaa18e3891d1bb2ecacdf99519955. 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/BR7A41800126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9320ac51b625f95abbc35780f21241cf8e7b5a973af13ed24d619ba05a869c3f. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T20:14:45Z), 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/BXHBP1900388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1b4959fafc6dcfef23f580a185509826e3ca6a2bb934d9ebde0f851b82e8ea. 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/BXTB12300173.
VISIONÁRIO VEGETAL II - NÃO HÁ OUTRO LUGAR SE NÃO A TERRA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743cf9ae9b38a67fde285e4960ac984cc4f67c52520ecefc2cfa95535f1119cb. 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/QZZ662346815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86124b4897df4afd92c5e4b3792e5ef97bc4b5cec4a39882db13c6fd5121ece. 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/QZZ662346816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59d85973d5ce1865237099351acd405e9c5d0e6f91c549c22dbf97bba7e8b24. 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/BCO5U2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651f01f1516fce683beb2816ae9c78137df78b30992efd98c544d6d8113c67bb. 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/BCSBS2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73cf7147cde59e7d641616f1ad6aa85e08954c017f77a9352ea0db15bb5eb2e2. 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/BCCNA2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f5d7ecf5693e41c0139704eca95b2e66759982b9bc50e28afed99ba9c6e12f. 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/BX08N2100119.