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 0x32ce777bc4532c795083bcca5295456729e50f5bc50cad51353c617c3e4cf810. Chain 2 (Bitcoin): anchored in block 953812 (2026-06-15T17:06:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6618b8d-a52a-47e2-a97b-d99d12d5cadd.json and https://artists.proofprofile.net/proofs/artist/f6618b8d-a52a-47e2-a97b-d99d12d5cadd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gideões 2018: Pr. Fabiano da Silva (Ao Vivo)
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 0x8a09244c8013cc45812a9ebcd7cc8b681a8dc324bbc019b6b72f0562ba8d8ba1. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZHZ52135998.
Gideões 2018: Evangelista Alex Alves (Ao Vivo)
Gideões 2019: Pr. Mohamoud Ibrahim (Ao Vivo)
Gideões 2018: Ev. Hezro Maciel (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651fb7600e085a112948519e17f750931321c7f44ea1404c17fc92938dabd4ac. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/QZ5AB2005440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c301e489733df346afcea974df6cb170c8746a6887d4c355dd74d6c3aeb50c. 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/QZ5AB2005441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6903031138f54e2b6ca7f0b65b54bbf0dfb85d26c4c46390a3491d2f50b8f8. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZ5AB2005442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6705ceaa9594b684f31be0ddcfb8c2b6ca1b4aaf1b8d583346887ea419073b. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZ5AB2005443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24de17f1cdfabb909d6a4ddc9822bb83c19fdd37de988489ffd7f9fd02dfd0d9. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZ5AB2005444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc066d7ab5d0aee7163fd12329f12cbf8c049004af2c58863f8699b43afa0652e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZ5AB2005449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf120218c8bfe63c7b46796d3c4c2d3dd75258c5e1b04a54fb57aa8c55e0fe3b. 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/QZ5AB2005458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08efe70c35b7c694e465125fcf27a963538eb482885caac650e4c4846207fcd1. 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/QZ5AB2005433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe4081776021dc6f6cc839c70eb44026befbd5424d6325e00fac5334ef20ffe. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZ5AB2005434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201abf55b062e23c3a8b7bfa8471e48e6f3ab9930d0192eb7d518947879a03b7. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZ5AB2005435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1477a3451834f7dd1dc68d91aacf29519ce8b439b68d4ea5215c56a99a389439. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZ5AB2005436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88581d9ed3f326da4903c794f26cc5daba0ff02cf4b884e3255789683858fbfe. 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/QZ5AB2005437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4ad39a738a08ac6116598c3000e295392357c5568aa48ddad26f5d31f6233e. 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/QZ5AB2005438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf769ac7dae1c5e8dd8e558cf01e7670b49b74a1742cfb79c205553444e3d5c7a. 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/QZ5AB2005439.