Zele () is a municipality located in the Belgian province of East Flanders, around 20 kilometers east of Ghent. The municipality only comprises the town of Zele proper. In 2023, Zele had a total popul
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 0xecb7c01f8cfd5ef9394d091e32a31ee93e8906d910897ccc0f20f774de4e3d84. 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/bf875d71-2bb2-4cdf-89f2-6610c2a0bc3b.json and https://artists.proofprofile.net/proofs/artist/bf875d71-2bb2-4cdf-89f2-6610c2a0bc3b.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 0xfe261cbdf84e7307eedecc87c0295cf1b15ea084f322ef9635a6314d3e3e4e2e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCJPX2311195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce700015e3e72fb455575724af93604c077adae694aea02389c0c2d35d6d8a47. 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/TCJPX2311209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c6d80ac2fe911409dee056d66a1ce1bbe3c3b9afecfe00dd1225fcb90e77e9. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/TCJPX2311214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd901726c952b916065c3fdb89d025828b615b85b13217132d90f14ee5c5ade70. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCJPX2360181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae90bd7266a24e96ba101a1227c771f4cc73cd142f3e3c7c6f62662981ec914. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCJPY2318764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab37162eb712e0793fcef890892a1d351a31af85fc522b219bd6095919c8e4f. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/TCJPA2445949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6fc972fd2166b66939b7178462690b6503f045fcd26f2eb884271d07dad07fb. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/TCJPA2445970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a19ecda3443ae189bf9a08ce9a41d74222eeee77bd7ac6abf5143a433804c7. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/TCJPZ2463531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe880fe8e7504570b53e5b7a3e98ccd2bdf9870f0c5013276ee354770b01374. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/TCJPX2349342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7860665bd02bb54e9f7c22c3d38c8fc2239ec235f9e3776e9c1f7265a9f69975. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/TCJPW2373809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108d36eaffd2657a9916c86345f5bf6f8f32ce51a33caa3025ab87071826986f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCJPW2334476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9462850e050da48f80485de280ca4a39e07ef6a499302ffe06c0bc404ddf2af. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/TCJPY2490697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69721ca9142bb4d9eb4f263ab4eb18a8817330dc62f86a76ac114384cb892a4a. 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/TCJPY2490701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f11975975cb473a179a6ed7be314c64173181d5a9e297cf49de3d455aab79b5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCJPY2490233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e57c7eb28fb5c86e134095e23a1865cececeffe1c9176261f4eb0f5aab57b5a. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/TCJPY2329807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c614b74bec55e2911ac4cb644159150e939c24508d08a0df270bf901f573a59. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/TCJPY2329808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce509e9ae4759dfdb98c6184cb6c9be080644d91a8078fd310402b41e8196d1d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCJPY2489788.