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 0xbe581ae757169e7bce167e2d385c2c100652554fe857178758a6259f4e8e7a47. 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/a6aaed26-8fb3-44fb-ad00-82c9486e312b.json and https://artists.proofprofile.net/proofs/artist/a6aaed26-8fb3-44fb-ad00-82c9486e312b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lofi & Chill : Disney Chillhop Beats : Lo Fi Renditions of Disney Movie Songs for Sleep, Chill and Study
Essential Disney Chill : Relaxing Renditions of Disney Movie Songs for Sleep, Work and Study
Variations On a Joyful Time (Christmas Lofi 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 0xfbf7a4018e8edb1759068791c50a0fd4375864662d8f06db207fcb68d880fa8d. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/UKX7G2100201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7257d1281b1b8f878ce4fd9797e5081714817c9bd7bd423ef58536c652e51497. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/UKX7G2100252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5eceffd5db2f967713bee5c512054aaabdf821af7e757463f6017dfb7796cff. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/UKX7G2100198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb923b4b3187336a510018447b56b91a3f1d48ee8576ce5a0d3e2edf13caf544. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/UKX7G2100191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4ddde5a2f6241b74658a04483e7dae80bfdd8ebd3cb827efbff38fd8dc13d9. 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/UKX7G2100192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514d6bc59d48899a49571be8529cb9e55d003ade6f5cac274ed12316788d1a89. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/UKX7G2100253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ea1bf6802ea242cfbcc6015bcb99996d20803f96fc41e12737f36f3ea32f6c. 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/UKX7G2100190.
Don't You (Forget About Me) - Lofi Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c58d00b8ca48e1ad744be40fb8b094cba472d6ac292fa56259a7972004905b4. 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/UKX7G2100203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205f1456c46472ac642d4b07e958eb9c132a943735fdfe735f51f8e720f805c3. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKX7G2100194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab91a0d24db3839f025117b2d915e163c7712e15f4d6fc6ff7f1f93e90fd148. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/UKX7G2100188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99fb6a35c1d9d7944d90df86162cf9d9f0e18f1e9fd155af04a083bff4d3d1dc. 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/UKX7G2100196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83cf93381ae2ffa424f5491b18ef0ee056b24abdd5681d25c2baa4e985c2444e. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/UKX7G2100199.
Another One Bites the Dust - Lofi Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6bd1b9c893492710809046aa099d6d38a7ac2dd73f5877494a01aebac42ebd8. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/UKX7G2100189.
Should I Stay or Should I Go - Lofi Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb493e2652e2dd03bc0ca29393d4d2aa6adb065f5142f8d2df177e0bbabc48e3f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/UKX7G2100195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb2e8c4c3366bea0ab4d013bdd875956620a7c6669c7b53bcb9c00365de663a. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/UKX7G2100200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3250d9dab8ee7c6a99933698aa07c1fd92b076632dbba8becb4659529d95c0. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/UKX7G2100206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5cc12ccfc371f553aaf2c7bc8fe9a5cad96a419dd154f66151c87896633283. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/UKX7G2100197.
Sweet Dreams (Are Made of This) - Lofi Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab51e16812cce12ce5d7779bd5269adf9cdc1ffea9c30e529ff1c2a40ee4e931. 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/UKX7G2100193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113312b3d09afe1200f216114a3fc1ae5159830702e959906df93ac5fcce0760. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/UKX7G2100202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbd3f7fc39afde144b524e2b067520e8910498a4daafb8cbfcc7dabccc038c2. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/UKX7G2200350.
Do You Want to Build a Snowman? (Lofi Version)
Some Things Never Change (From "Frozen II") [Lofi Version]