Alphablocks is a British animated television series for preschoolers that debuted on CBeebies on 25 January 2010. The programme was created by Joe Elliot and produced by Alphablocks Ltd. (Magic Lanter
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 0x583fffd96180c957159e1eafbebcb1e0a8853eead08065d7e190ef5ecf765719. 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/e2926253-3966-411b-af38-269a8496f249.json and https://artists.proofprofile.net/proofs/artist/e2926253-3966-411b-af38-269a8496f249.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 0x15791f6e31b0ebfbbf96aa906c9cf5719ca1866c123bf970027277657b8b823e. 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/QMDA72191866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf73410d56731aa589658fff5064637ff84aa76f2182dc4bee9cf727856c15e. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QMDA72192028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29abff0a59b1adeeb5e257d687294c87293b77370e4495829a56fd70575c0cdb. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QMDA72192031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cdf9d5ea15f0f6209ca06742d397d8a11a9dabb0614cdc70ae42242afbf965a. 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/QMDA72192033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fc72be00bb4f06cd1dd82d0f4d90f3e75f41d718dda1b2e1a4cb4000fe2606. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QMDA72192035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb269847da7a5a0202f182c4d53ed13457c9909707f6040ee51e14ce0397d360. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QMDA72171434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a384cfa1008dc425d17152873eb54a2601cb4a6b52d32aa76851bcaf7b59025. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QMDA72171435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ee01d3fd814e2877637a40b7451b984f718c07a8995da9b131252568f9893c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QMDA72191976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4042ff2f04619baf9a47e9ba0d443048d09a4d05012a7132756855049c1959. Chain 2 (Bitcoin): anchored in block 958573 (2026-07-18T15:49:54Z), 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/QMDA72191977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da4b03284c2c82fdfb9bf2869b584054d5aa388d59b6e126c6355313404a8b2. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QMDA72171457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7e93b8bc99e29e8b456d912d85cf4bcf55e7ffad4042351c89ccf83ab994af. 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/QMDA72171461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0218c01deb2c6e0945b8d3c85c8761cdb19f3209a187cbb6976ce1ff7fbd78de. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QM4TW2273702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fa55501e963394dd9b02de97487e55226beaaad94ec0776ebb74ac23da41b7. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QMFME2583706.