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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f104a7a760d43bc488555e98c13f3e2200217693b92f37d51d63ec928c9c389. 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/8d1be45f-b9bf-4205-836b-9c63adfadbda.json and https://artists.proofprofile.net/proofs/artist/8d1be45f-b9bf-4205-836b-9c63adfadbda.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Favourite Alphabet, Counting & Learning Songs - Volume 3
Budgie the Little Helicopter: Singalong Songs and Stories
TV Themes: Children's Favourite TV Themes
All Things Bright & Beautiful … Hymns & Songs for Little Ones - Volume 2
Pretty Princess and The Magic Marmalade Story
Sweet Dreams … Stories for Bedtime - Volume 3
Pop Goes the Weasel … Traditional Nursery Rhymes
Jack in the Box… Children's First Play Rhymes
Fun Songs to Sing - The Ultimate Kids Collection
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1deb22b9ee674ddd2fcaaba34f9cc0f32d724e9936258110a58442d8dfa32df. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:03:29Z), 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/USA561406266.
The Ultimate Kids Collection - Pop Party
Budgie the Little Helicopter: Singalong Songs and Stories - Volume 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0df036548da802effdf980adf98dbb1f8e5404d5139828232e288614c59619e. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:59:18Z), 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/GB8KG1107906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031ee4f8705848747d49c6ce4c120d4266420f81d5092fc86961949b20ccd38e. 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/GB8KG1107883.
Old Macdonald's Farm … Loveable Animal Songs
Favourite Alphabet, Counting & Learning Songs - Volume 1
Budgie the Little Helicopter: Singalong Songs and Stories - Volume 3
Beep Beep Toot Toot … a Fun Filled Journey of Songs & Rhymes
All Things Bright & Beautiful … Hymns & Songs for Little Ones
50 Favourite Hymns & Songs for Children - Volume 2
50 Favourite Christmas Carols, Songs & Stories - Volume 2
50 Favourite Lullabies, Soothing Songs & Nursery Chimes
50 Favourite Christmas Carols, Songs & Stories - Volume 1
The Wheels On the Bus … Activity Songs & Rhymes
The Ultimate Kids Collection - Disco Party
Sweet Dreams … Stories for Bedtime - Volume 2
All Things Bright & Beautiful … Hymns & Songs for Little Ones - Volume 1
Fairy Tale Adventures … Story Book Volume 1
Favourite Activity Songs & Rhymes - Play Time 2
50 Favourite Hymns & Songs for Children - Volume 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737fc8545eb976326369f2e55b0e1ade244450f6bce267cdc5146e1b1e939489. 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/GB8KG1107460.
Favourite Activity Songs & Rhymes - Play Time 1
Jack in the Box … Children's First Play Rhymes - Volume 1
Favourite Songs from the Bible - Volume 2
Lullaby Magic… Soothing Songs & Lullabies
Jack in the Box… Children's First Play Rhymes - Volume 2
40 Favourite Nursery Rhymes & Songs - Volume 1
Frosty the Snowman … Favourite Christmas Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18610ad1d2528f476b174e0d523c7e2e5c325491d4a37adb608f4e4bc26fcc49. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GB8KG1104439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf978e6d00bf5f392ad3fa085990fe4f9df883254274aa01d0c3f4fd8c00ed715. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GB8KG1104450.
40 Favourite Nursery Rhymes & Songs - Volume 2
Bedtime Stories … Sleepy Stories for Sleepy Children
Rudolph the Red Nosed Reindeer … and Other Favourites
Humpty Dumpty… Traditional Nursery Rhymes
100 Favourite Alphabet, Counting & Learning Songs
The Ultimate Kids Collection - Fun Songs to Sing
Favourite Alphabet, Counting & Learning Songs - Volume 2
Budgie the Little Helicopter: Singalong Songs and Stories - Volume 2
Favourite Songs from the Bible - Volume 1
A Wild World of Animal Songs .. Wonderful Sing Along Fun
Favourite Activity Songs & Rhymes - Play Time 3
Jack in the Box… Children's First Play Rhymes - Volume 3
All Things Bright & Beautiful … Hymns & Songs for Little Ones - 3
Sweet Dreams … Stories for Bedtime - Volume 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8dbcefb738b94bc6da9f70ff132ebfc3320c121a266bbf67791698a3cfeeea. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/GB8KG1108451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0363274158e04e92f5890d2e5fab28fdfde3a57dc2826a2939d45add56a8fd79. 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/GB8KG1108453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0539a20ebaa71571ced77f98a0f8525abfa8ae7141340904d36ed804fd937406. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GB8KG1108454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860dcd3a491ed3e68dcd22642732d21beb0fe37c0722aa1f6438ca8daa74bea5. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/GB8KG1108456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f1feb59a16ed952e27a83e463bda99b197db2a66db1d5e68dd3b623ab06ab9. 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/GB8KG1108457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66533efecb1cc5525b7f7a26af33e9ce5ee8e869e856797f56173a86843f3c8b. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:40:07Z), 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/GB8KG1108458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ebbdf4afb73cb9b62d0bce150305d4a8fa13b474f3a0e6909eed45afe5f588. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GB8KG1108467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23501c27f00fab4c5c66864c5d70ce8aa1fea8a73633ec95ce842002181ce689. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GB8KG1108478.
Fairy Tale Adventures … Story Book Volume 2
Seasonal Songs and Gospel Favourites - Volume 2
Round & Round the Garden … Children's First Play Rhymes