Danzel Joel Silos (10 June 1997 – 25 February 2024), known mononymously as Bigidagoe (Surinamese slang for "big dog"), was a Dutch drill rapper. His rap style was characterized as a Dutch translation
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 0x2682b2b70b0865999254feead9f46d0acee9a02a056ecc10b3987546b24bb9f1. 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/3695d535-aaa8-40ed-9105-c3d09458a271.json and https://artists.proofprofile.net/proofs/artist/3695d535-aaa8-40ed-9105-c3d09458a271.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 0x57f3b5cb79e0b20d8cad76d7f31d6490764e4322ac33c6a549cb96ff9641ad6c. 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/TCAIH2459529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea156c9afdf77c9dcbb5477a7bbf35b2c9ece6a988e7c0dfa27b1dd8b93c6e9d. 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/TCAIH2459587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a717e73174f3b817c0111b0b9b281d4b7276e47ee24ac9ff92b9d774816231. 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/TCAII2423909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8453e64f6a4a398bf9e9b1962c1e7d511078a678d74d35c828dead7a8fda74. 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/TCAIH2459612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb807a6d7e22058e014e996b43b889f06caffbef2ec051822ccc207216e525390. 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/TCAIH2459623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d14999707ef847ea7e96fbf51457cefb33eaf40a05fb8311d662ab658b43756. 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/TCAIH2459631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7404989a24c70348e445ef0cd4ccc99180329853cde497b7f6a308afa83d334c. 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/TCAII2459633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8609ef53dd18b7a051cb517558228d229867bf22697b930c1431dad0d37fc3c. 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/TCAII2459646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18d63537287b9844a88539547c07e01a73b8d75b40c5a9234b0d44e6363ecbd. 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/TCAIH2459658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de07e4da0581b7bff3a7f1e9dcfea8dc83618480d62111d6017e50806642a24. 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/TCAIH2459679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7f42cae0daafca9ead5728c6cb75f06d88ea1d5ee009f30b67423027d9f7f0. 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/TCAHI2370279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e22b1cc1bde8d92b4af342ec44fead9da0b721118b1df4040e427a64f0a7644. 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/TCAIH2459714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2822b989bf554100dc3ab27f8ca0ff0e8ec657d76c0e6ffb05dbd7fed4bfd8. 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/TCAII2459752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283dc36d3d5b96b8a6f3f1b2750f0fdb51f6b41ed7633182c938a8c084fe27db. 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/TCAHO2362758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f7ec28b9a08d5933c30bc86690fe87a23c95243f9bb174db1351a7ffe937a8. 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/TCAII2459767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311bb9b832ddbbff6c9b6ec7595a4706b0ff0f9285b823eec30005ff49065ebe. 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/TCAII2459776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53babe0dc85750b076849c4a44c98f371a747bd20a797ad98ef45f395c3cf858. 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/TCAHC2359550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfefd137ef8a920bdbd65f6a402148c1eeb8078e32f62290865f3550c3fdf90ad. 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/TCAIH2459790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c346e5440aad1698ab5db18477665b70d85fa2b73bb26dc91667a66968230c. 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/TCAII2459794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6b4bc43857e8254b9929398a91fd1380ed034ae27257453f1c91cdaf992fa3. 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/TCAIA2441525.