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 0xdf0c75f57dcaeb93c690e194cd2feba5dfe0d05859da2dcfdc9a8748f338ed8d. 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/82b03646-22fa-4917-8611-e6b8637c5489.json and https://artists.proofprofile.net/proofs/artist/82b03646-22fa-4917-8611-e6b8637c5489.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Do You Like Broccoli (Instrumental version)
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 0x984716d11712e8151e945bd1a191991d2cb5374a5d8044e203c7eb52f4ad53db. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU6723869 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20675e05255bf779a911e94880e60a825e5b214502cd72f459fe228dcb4b222a. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU6723858 — a six-check JSON result.
The Wheels on the Bus (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7462451c148a6e549cae657f8ad83ffd8d8816b3f80bac75a0e306285dcbec6d. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU6774814 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0a2eec0eb7a6db0cd16c2656ed0cf8f1f8d4dfbd83a18e716f0cca07031264. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU6774697 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b6ae6e486d7d6037eba5fe97c06668e8a958cdbad7120abd39867cb1cb3dca. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU6848885 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed26c82218fd3b942919a6f92684f00fffca7ae060d3cf6570413948d99bf23. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU6981628 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df0fc7b4278c1a033aebd0f06d2066a0c30995394b56897ae6787416858f03f. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7361498 — a six-check JSON result.
Let's go to school (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d7c728af36786216edfa08577e05ff710e943e751936860dc7fe5522e294db. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7364247 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144344facd727a8a3194b3b6f6cc2dbd10f3096855522f4edd9ddbaab54194d9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU8908250 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61050e92b02fde4e33ecd0ab49d7c514d58441d98bbf4ea18d243ddcfb3dabf3. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU9281695 — a six-check JSON result.
Smoothie Shake Shake (Instrumental Version)
Left and Right with Crabs - Instrumental Version
Through the Wall 2 - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e15ac52c5f3cdf4b924228cf866c41a0d23e6f0175894d45a9c939a9dd17128. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU9621034 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2608f474541d806ff275b748536f81e045eeede6de112cbca6332df23fcf1b1. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU9735764 — a six-check JSON result.
Fire Fighters Game - Instrumental Version
ABC Game - Learning the English Alphabet
Where is your Mommy - Instrumental Version
The Wheels on the Bus - New Instrumental Version
Doctor on the Beach (Instrumental Version)
Animals and Sounds (Instrumental Version)
Who's at the door? (Instrumental Version)
Learn Colors with Balloons (Instrumental Version)
Happy Birthday Fun (Instrumental Version)
Are You Sleeping Baby Shark (Instrumental Version)
Finger Family Professions (Instrumental Version)
Five Little Babies (Instrumental Version)
The Floor is Lava (New Instrumental Version)
Baby Want to be Higher (Instrumental Version)
Maya Learns Insects (Instrumental Version)
Pretend play Nanny (Instrumental Version)
Easy Peasy Lemon Squeezy (Instrumental Version)
Yes Vegetable, No Sweets - Instrumental Version
Pop-it Experiment (Instrumental Version)
Up and Down in the Sea (Instrumental Version)
Brush Your Teeth (New Instrumental Version)
Too Mach Ice-Cream (Instrumental Version)
We Are Fruits Song - Instrumental Version
Mosquito Song - New Instrumental Version
Princess Birthday (Instrumental Version)
Where Kids can Play - Instrumental Version
Do You Like Broccoli New (Instrumental Version)
Where do You Work (Instrumental Version)
Dance Like Animals (Instrumental Version)
Crazy scientist experiments - Instrumental Version
Halloween Cartoon Trick or Treat (Instrumental Version)
Halloween - Who are You? (Instrumental Version)
Halloween Guess game (Instrumental Version)
Peekaboo on the farm - Instrumental Version
Firefighters pretend play (Instrumental Version)
Family activities (Instrumental Version)
Learn Shapes game (Instrumental Version)
Happy time on the playground (Instrumental Version)
Healthy breakfast (Instrumental Version)
What is it in a room (Instrumental Version)
Where do you live (Instrumental Version)
Head, Shoulders, Knees and Toes (Instrumental Version)
What is your name? (New Instrumental Version)
My favorite holiday (Instrumental Version)
What an animal game (Instrumental Version)
Guess profession game (Instrumental Version)
Play house - in out (Instrumental Version)
Safety rules for kids in Nature - Instrumental Version
Yummy Food Refrigerator - Instrumental Version
Happy Birthday Princess (Instrumental Version)
Twinkle little star (Instrumental Version)
Baby wants to swim (Instrumental Version)
Put on your shoes (Instrumental Version)
A to-do list song (Instrumental Version)
Allergy to sweets (Instrumental Version)
Put your trash in the bin (Instrumental Version)
My best toy is broken (Instrumental Version)
Finger Family - Learning Emotions (Instrumental Version)
Happy Birthday Time (Instrumental Version)
Kids rules for school (Instrumental Version)
Happy Birthday Bom Bom (Instrumental Version)
Halloween Finger Family (Instrumental Version)
Halloween 10 costumes Finger Family (Instrumental Version)
Police song, Who took it? (Instrumental Version)
Dirty-dirty hands (Instrumental Version)
Five little elves (Instrumental Version)
Christmas Finger Family (Instrumental Version)
Humpty Safety Rules (Instrumental Version)
On Saint Valentine’s (Instrumental Version)
Finger Family (New Version - Learning Emotions)
Shake Shake 2 - Work-out with a Dino (Instrumental Version)
Help Easter Bunny (Instrumental Version)