Ciel (meaning heaven or sky in French) or CIEL may refer to: People Ciel (Canadian DJ), a Canadian DJ and electronic musician Companies and organizations Ciel (beverage) a bottled water brand owne
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 0xfdbe8a382ef68c56f37f5a064a085dfbdda4e1ed2a215f86428c644c0320ca82. 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/19e58d49-41c4-41c3-ad6c-bac97e4f2787.json and https://artists.proofprofile.net/proofs/artist/19e58d49-41c4-41c3-ad6c-bac97e4f2787.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 0xaae9f5683ec41bb6d7889405248964bdb9413de7db8bd14d086e206290601b9c. 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/QZTB52261169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6b2fce6dbfe775e04337ac9270fe3944c5820a35e56b72d18785b2d9ee3fd6. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/QZFYZ2337853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477932abbbefe148d51b10c4c95d01325ab550e3850dcad7177a1aca5bf50274. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZTAW2362353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1935cfcd21434d043d4b033ac5009c8c6bd7395a75102bb481dbba7968c1896e. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZNWX2326408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb960f40b2360c7cf1121100d3018759e3af97bd757abe3d31bc741f1fa807ded. 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/QZTAW2362354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6960ae01471e22208c8c2d19898ccb71b5e05d04c1d1ba8d1fa2300d99cf1ec8. 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/QZTAW2362355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc42793ee6c480a7b0a73153eab03721ef2702d74583d2f2d1f03a81468012c. 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/QZTAW2362356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f147a40da4362e9908ff9a6e4bce3aba3179ad706c5c20be90e2e5b80a13958. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZTAW2362357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4dbb41c96b93f82399e5598cfcbe70152000fe2d5071c743b68aa961f89c5a4. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/QZTAW2362360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80dcb9dfc3bc4d2410cf379221ae4c04c678b9ea7dcf88135aa936dc4ce22df3. 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/QZTAW2362361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061975e5d5a21b8d672c7f61d36eca7d167500ff14df17ca1d8f711dca88c8f3. 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/QZNWV2447616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45abe2d8880151f64642a5b1a84687883e8dfb1f20376e99a99a0a9c32cc1126. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZFZ42563174.
i'M FALLiNG iN LOVE (Interlude) [feat. Ashley Iman]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5285282cbddcd1e34dd7adf28d5b490d77ce4dde8129da87dde844648e54c42. 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/US38Y2517824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496d9c63595f9fae347003d30f8f55ecdcfbb9142ce7c1af92b69b475c0ad5da. 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/US38Y2514491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8debea51a9b9cadb0e28bf624d9ead27a7b90462dc342abbb18265758373ba. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZES72434799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75233ab302e2300f26e4da5bffa367bd8cdd3538161c3b984d12d6c7db2c09b7. 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/GX3Q92338889.