Tremelo () is a municipality located in the Belgian province of Flemish Brabant, in Flanders. The municipality comprises the towns of Baal and Tremelo proper. On January 1, 2006, Tremelo had a total p
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 0x2773e3d9d9a73a945518f57e76d68ce476ed9db9e397601b9c7ad271148782b1. Chain 2 (Bitcoin): anchored in block 953588 (2026-06-14T04:52:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/000d0e9d-a9df-479d-80cd-77f0f2721120.json and https://artists.proofprofile.net/proofs/artist/000d0e9d-a9df-479d-80cd-77f0f2721120.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 0x1b485ebc006b5855ad3498c2fe70e20d1d0766ee5a35fe7488be1335f7c60207. 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/QZTB72399334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56c5635133bf71bd9d2295b3c0cb4b47b6b7ac8ca213fb05407d8beab5ea6e7. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZTB72399337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9935656d776543fbe0274f4815a4206194d443ebb11c0f11a5b276c7fedf3e5e. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/QZTB72399340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68ca0c99309cfe74b2638ee5dbe0c7ddfd742df2a0614f352db1481d98803f7. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/QZTB72399349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f7a7337f0f352906f83e7ba8d9fc6ffdafc1ee9ec2e92455779fb278a5aeb2. 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/QZTB72399350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e1e1425d763608eb37c6573744b7170e6f3dae3b5c5a51547cff202dcc4188. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/QZTB82311597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5cf38502e474c961c9d3e6d9ec92bd75cf0cb266b8066322c47c2265a4b220. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZTB72399319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b14af6cb4f8b174146afadf45fc67ae2added3c2a0cf9116984d648a14c3a3a. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QZTB72399352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1849469fffd73ef638b1b30cf6a107b0a8d83e8076c8d4edacdc29af7824512e. 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/QZTB72399312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601c474d1a6fd2ef15ef2f5758e5d52035dd7927324f076ca6f9460b0d9f1995. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZTB72399311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29217aaa5792f830157ecfeee9327ac2975e9861b524d0500c00b7b65cec5c1e. 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/QZTB72399321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18bf20e5aaecc4b1bb3f2fa01a9b6e0c3cf4e6d3816f12d5ef0f3dc0ffb5cb44. 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/QZTB72399323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf202fdf0c08889bad6daeb9f32c0b5bed23f3704c82680660d316174044a0104. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZFZ22479518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68cacd3c13df6bd86809f3de4c1cfbd08ebd5b7c510824602ad79f2bff9a90c. 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/QZFYZ2435031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1ebfbb4ea6aefad83e3814f180fda465e5936799fb78a3411ac4e57ed5e331. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZFZ32462273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89bf51b782249a0eb37c56e2811700f584a8dcb63c343d06fea91a079f6ddba4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZFYZ2431502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854161ec1ef398b57bfe4cd2b6dc5165d9691e11e9ad6ffd26516366469cab7f. 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/QZFZ22479519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17808f878f70ebab17932c85b17808692602df9998844eec2c4e31069d0f68b9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZFZ22478700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113cf03a8fa6890655ec4f3c61925be583479def0dd58b5b1babe0cc3c4df5a7. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZFZ32497574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb537e2b9e1157624d8a74e767d7579cd359df51eb2ee4cad891611466576ab5d. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZFZ32497568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf622f89aa6c7fd3be1e7306d0a1085effb8915cd1f689ea16f17b998b443fb73. 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/QZFZ32497577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ac347d99504d2250d4aa71ad9cee034397f7c49e04a1cb1a7b3cfb6633a035. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZFZ42445641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37467b89d398d03bd0f10aa0d32f1e3b61ac3839970012298b05ca89df0e852c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZDA42443974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07c9f4c3ff2c9486c31498c711819d502080446fd4dcd9bac7399270557b223. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZDA42444049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf099d4b1d0afa852d3960f431917a9baddcf8f63070615dba2fb7edf8abbbe. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZDA42443902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8196919bd087fb591a543630bf5399999c9bad7017f17d6ff8a552e61423fcb9. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QZDA42438632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5bc2454284b703a5a3bee00f108218f90e97fbb1e4618c003eec7448aa4fb1c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZDA42443948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2121ec08e21927301c9aabf9ae8233d6f7d81ca00279223b85b722dbd6d5a092. 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/QZDA42443923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a3dc5426a14d214316fe0656e2a95e7d41e25eff0adf6ed8a071c9c19d5f50. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/TCAIA2463227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf10dec7d4d9c8e73bded9122ba27ca28530babff7830517da94adfa7141d5f7. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/QZTB72399329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd737017295b133c774a1ba3eb4b537f23a97771b4a1fdde4071f71464d496b0c. 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/QZWV32518928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6655e769163b2f4c200ad7d98f86472c5e4f46dc28e430f0723f6068b28f6065. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/QZWV32518918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed2b8667289418788d1de0b47c9d3e2673a5c2d5718304df619d6a076e29fbb. 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/QZWV32579475.