Baby Sensory is a registered British early childhood education programme designed to support parents with their baby’s learning and development through sensory stimulation. Founded in 2003 by Lin Day,
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 0x90791991854218d83bf2380a3a0e80c294d76c403af952172aafa7d694736d1e. 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/a99e90ce-c05a-4880-9613-34a70d6ffd18.json and https://artists.proofprofile.net/proofs/artist/a99e90ce-c05a-4880-9613-34a70d6ffd18.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 0x897807d8577e4703476bea1c111ab0675436aa1ee9fa8fe156f2854f6e183be6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/UK6821901630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf337b04ec7d3c6411807ae92d99b2af8588f24f1a36f457ab86042fe89bd4e6e. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:54:53Z), 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/UK6821729203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a46ae4e09cd9d2050e08c8641192459bd5e60681c8ac289a97433206ace43d1. 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/UK6821729204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046dd10109769cdc91ee2fe4f1c95fab3ea238617244c47f09643b11a9f70dda. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/UK6821729205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7347af958cfc68e3ba1430e630c67b04f5718072c25d1a7fc82a65ce4a07e27. Chain 2 (Bitcoin): anchored in block 957624 (2026-07-11T23:13:54Z), 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/UK6821729206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307c2730c2e61bf255b6e32f4189bcc553a001c987f89f000b6f58cfcc8557f4. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/UK6821729207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea61f2baea6382fec090be6240443f000e106067eef68ac6a171a52de4f88dc3. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/UK6821729209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68ea020d520917c645c9b7bcaa21ded34d0ded688143cfc67dbb0a6b2a9bcdf. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/UK6821650611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa9c0f7a9d011505b3adce536b7985cddc0df61106cd30a4c54f3a228a7340f. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/UK6821650612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6365355e6b4315f364c2b9f53da1965cd1fc893d396c8d1606a72dc78c1e985f. 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/UK6821650614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc456b582947774c29fffb3c0c9b30494dfb7bd259a29b1c2ea7f087da97bac99. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/UK6821901631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6553830e5e772adcff9849e02bf677bc7db51362bb0e637a22b74d76c030998f. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:25:17Z), 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/UK6821901632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066208f8b03ceae8f2fe41eb5315c1dcfd768050df0f1dbdc421e35b93c82cb5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/UK6821901633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3d7ae1e3ea8de0f6830c3fd20af0adf8990f07b689e45df4e8b363c3b15b7e. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:32:40Z), 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/UK6821901634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5576e3b09d6f58bdd72034750e32410f8cef7eec22ff0124a1e71936905bee5c. 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/UK6821901635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e241e92e817ec1f9b3e178a80fbd69032aa0ae2d6afa3b21aee5e0249f0a77. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/UK6821901636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41b10df8bc506daa0d112f5a6ba97aed87c790e55a01795927b9741f7106ac0. 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/UK6821901637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224a1a0755f444d15c42d2f028025dad3dcab8c150f4e21b4c934193b38e01d3. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:44:06Z), 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/UK6821901638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf640bcaaee1e681036ba86bdf3bf899d89fcc738ed7c5e390e2aa35afccc4e30. 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/UK6821901639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f01156120efe1594fed093d03a5e3ee2926a34a887b7c8df638e41187a2fbf. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/UK6821901640.
Comfort, Love and Cheer - Instrumental Lullaby
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac5eb04e1ebc7b8853038f5a0df3e414e146f86f84453a99584927144d53cd3. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T00:42:21Z), 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/UK6822200681.
Ring Out the Bells - Instrumental Lullaby
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c693b6db706939e722f3d956ef290a171a48e44b4fa631a62e2b2bef7a8b71b. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:20:30Z), 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/UK6822200682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8052b3277a817f680e914cae4d659a69f2d97cd855c42fffbe28e87cb4aaa4e1. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:18:25Z), 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/UK6822200683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a33dc78be2770f04773940aea84a40c3eb82e24f7929e228530e8033fea0eb. Chain 2 (Bitcoin): anchored in block 957624 (2026-07-11T23:13:54Z), 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/UK6822313138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7bcb324eee221508ba504bc236645f4efee51564550a72598d31a57118900cc. Chain 2 (Bitcoin): anchored in block 957622 (2026-07-11T22:55:42Z), 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/UK6822313140.