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 0xd57acd157c11cc32d8eef85b7828cc2f856e2da3cff91a2ebb56fab7006b05ba. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3812c1ce-df16-4a3b-b590-7868dca04ab1.json and https://artists.proofprofile.net/proofs/artist/3812c1ce-df16-4a3b-b590-7868dca04ab1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Flowers (Originally Performed by Miley Cyrus) - Karaoke Version
WILDFLOWER (Originally Performed by Billie Eilish) - Karaoke Version
WILDFLOWER (Originally Performed by Billie Eilish) [Karaoke 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 0x7148caf329cedb5d26e0e95942afd263b3bec2e017083aab3a758134e723c666. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/AURFF2403184.
Here With Me (Originally Performed by d4vd) - Karaoke Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe490a5f10c238b10a1ad44659c51390f4238b499b8a3fdf1ed67b364abe34d48. 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/AURFF2202138.
Pink Pony Club (Originally Performed by Chappell Roan) - Karaoke Version
Pink Pony Club (Originally Performed by Chappell Roan) [Karaoke Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad1af3d917dec506eed1d4232cd7d2da4dbb1b123f9a6abae36edf6dabbd5567. 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/AURFF2403296.
because i liked a boy (Originally Performed by Sabrina Carpenter) - Karaoke Version
because i liked a boy (Originally Performed by Sabrina Carpenter) [Karaoke Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51cd0f1ecff7253742d67328bf0866e28aefbb52ed5489e88a6e34e491a3dfe. 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/AURFF2201904.
From The Start (Originally Performed by Laufey) - Karaoke Version
From The Start (Originally Performed by Laufey) [Karaoke Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba04faafc9dce3cce88590a6d76f51fae98f882f0b709e998c9c9202130fa4d. 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/AURFF2302431.
HOT TO GO! (Originally Performed by Chappell Roan) - Karaoke Version
HOT TO GO! (Originally Performed by Chappell Roan) [Karaoke Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17b67c62e44692f346fb59cd46328231aac2123c4bace25738351309a611063. 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/AURFF2403222.
Steve's Lava Chicken (Originally Performed by Jack Black) - Karaoke Version
Steve's Lava Chicken (Originally Performed by Jack Black) [Karaoke Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c1024fe414fb30fdf442a4f2622da0b9c7660f3a35aabee49984dc3d21e1e8. 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/AURFF2503797.
Symphony (Originally Performed by Clean Bandit & Zara Larsson) - Karaoke Version
Symphony (Originally Performed by Clean Bandit & Zara Larsson) [Karaoke Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec851ded224dbbb7a0187971944dcdfad4a09de3e5dbc6b47b3ab4297c3d471. 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/AURFF2403415.
greedy (Originally Performed by Tate McRae) - Karaoke Version
greedy (Originally Performed by Tate McRae) [Karaoke Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacff76e894b71a11bbde49b88dcc05c21d06b6348ceef9b635753aa6258ec707. 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/AURFF2302687.
BIRDS OF A FEATHER (Originally Performed by Billie Eilish) - Karaoke Version
BIRDS OF A FEATHER (Originally Performed by Billie Eilish) [Karaoke Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc11940340ea055ce73c8bce4194632f6c30c401b4b91c6b223e87bb480308f. 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/AURFF2403148.
Die With A Smile (Originally Performed by Lady Gaga & Bruno Mars) - Karaoke Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcdd8ef6bca66ea153d685df587e2abee06aa2efc7ce8ee73a35ae1566eb1ca7. 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/AURFF2403317.
Gabriela (Originally Performed by KATSEYE) - Karaoke Version
Gabriela (Originally Performed by KATSEYE) [Karaoke Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c344bd4487a48ee2dbb5c80d575376c393142f3205d9d0d0b145010f1da558. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/AURFF2503895.
That's So True (Originally Performed by Gracie Abrams) - Karaoke Version
That's So True (Originally Performed by Gracie Abrams) [Karaoke Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a0d3a035d94927b546f78e6e4a9b70b48004e3b48e8468c8df48c4206098c3. 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/AURFF2403474.
Die For You - Remix (Originally Performed by The Weeknd & Ariana Grande) - Karaoke Version
Die For You - Remix (Originally Performed by The Weeknd & Ariana Grande) [Karaoke Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6647a54fcb55ad9d6375683b376b197555f08bc26597ac54c5ce9cf44f8ccb. 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/AURFF2302284.
Easy On Me (Originally Performed by Adele) - Karaoke Version
Easy On Me (Originally Performed by Adele) [Karaoke Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee221c7dc0fbea331f7be5332ad8be5cadd02eb5ffa96b898172c0ee3cbdfb4. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/AURFF2101567.
FLOWER (Originally Performed by JISOO) - Karaoke Version
FLOWER (Originally Performed by JISOO) [Karaoke Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1297606c69672b7c579a93947bb59ef53715eb434052bc55810de1ec1a661d08. 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/AURFF2302349.
APT. (Originally Performed by ROSÉ & Bruno Mars) - Karaoke Version
APT. (Originally Performed by ROSÉ & Bruno Mars) [Karaoke Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0360ec7a5187eabcd42fa78b55a7a814dc121a2533e316681ee4840c7d7fbd47. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/AURFF2403427.
vampire (Originally Performed by Olivia Rodrigo) - Karaoke Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e52d6815f1d59de6a1b5f61595320218bc8df41550e95d70b185553bd1162e. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/AURFF2302523.
Until I Found You (Originally Performed by Stephen Sanchez & Em Beihold) - Karaoke Version
Until I Found You (Originally Performed by Stephen Sanchez & Em Beihold) [Karaoke Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4c03a8ffb8bea3fbe0cf2bf00c96c6a54be2e3e15444f64da156a8ea10d482. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/AURFF2302195.