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 0xfe738b74cfe32088c7575085dc74a20fcaec60f7ffaa951fe8d01e014d7b2a0a. 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/88c04d32-52c4-4af4-8213-2e009469f526.json and https://artists.proofprofile.net/proofs/artist/88c04d32-52c4-4af4-8213-2e009469f526.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
TROLLS Band Together (Original Motion Picture Soundtrack)
Better Place (From TROLLS Band Together)
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 0x2ac22e01166fead0550c6471122124b2bf5ae518bb70b5ad496e82ed6473c8d4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USRC12301385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107e8a1d63f5631644f9dacbe63cf2ae8f0f345acf9a836608ff47211f852d34. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USRC12301386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d78492d09927e76053edb7d5666757976a2e6bd624c85ad055ceb7357907774. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USRC12301387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c29e099c5a39de1c1a512781ade427a42732a34381ae8c30372e9c4ee517cd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USRC12301388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31bdec0a853bdd4feabcb29e7df221f20acaaf0924879a2af860998eed60fbf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USRC12301389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8742ec8df734594baae82ba99389a5028841f7d745e0291b3bda5035774b7ef4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USRC12301390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3e71c1184e63d7e7fab40c7bc49393c9b1de9017b644322062d955025b6c7c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USRC12301391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd8b9ba2684b5c9295aebfb06d45fecb6a563a50b7e632566b698fea53c9bf4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USRC12301392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae10fe3f80ff711feda860929baa69bd734c4a3fb7dce4ce9d4db30c8cd4456. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USRC12301393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b216d78680f4589289542c0e5ee0b572655a2fc28b9b827e57ba5dfc44580b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USRC12301394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd613c98201fec99c92ee242eea7c35cd3777df649872e834e6099823e2bfbc02. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USRC12301395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49835abc2979d4e559a0b889f4c0b4d1a781d4aeb5247b79a01a712b3ad78bd4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USRC12301447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc3462efca2777c9aec704a2a6eca0580a034d75b018f9172f46b17c1dba239. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USRC12301396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a355b827b0d9017e124b96bfd93317834e5feb19f5db707fc53a3dd52ee17f1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USRC12301397.
TROLLS (Original Motion Picture Soundtrack)
TROLLS World Tour (Original Motion Picture Soundtrack)
Hair In The Air (Trolls: The Beat Goes On Theme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524941763da8e517bef9c47561e1b464bb96f7c23096e141822d2b14ec09cc8b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USRC11703568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7ebd302a2691cdab9f21b1758ca9483704322ffa82ee28e70f47c506ef072a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USRC11703573.
TROLLS (Original Motion Picture Soundtrack) [Deutsche Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f1cfeb9dc22c37bc8c7bbb122badff21087150f63edf51cae5b46a5993c937. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USRC11601597.
September - from DreamWorks Animation's "TROLLS"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a619c0649b8faf126a999615f1a26c106f015592dd30abfae7e9231f086ee42. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USRC11601600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33bc34fd8226aa09a4bd2617387a65ea5d351dd82cd1b79f26a1e6c11ff31765. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USRC11601591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64a4b589943fa031ddef882b647d2f3b443f414dad54279a61e45bd4c619dac. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USRC11601601.
CAN'T STOP THE FEELING! (from DreamWorks Animation's "TROLLS")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a816f3c54efbba119aeecfbef7f6e3a12303710a66b9296bbb0cdc509aec739. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRC11600876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1116e593b97814546136346510e121844ad1d7ec5902bc7fde54bc1fe15a7672. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USRC11601599.
TROLLS Band Together (Original Motion Picture Soundtrack) [Deluxe Edition]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49835abc2979d4e559a0b889f4c0b4d1a781d4aeb5247b79a01a712b3ad78bd4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USRC12301447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c76439f8599a5bd2106ceb0e83175a70e4e03d8a8331112002a82e0ce3cf2bc. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USRC11601598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf422c694f2f0cd8c3502432c8f8d0dee1bfdd62a586696a6329cfc3ed302f59a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USRC11601593.
Move Your Feet / D.A.N.C.E. / It's A Sunshine Day
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36d7f919525f2bb3b030488b5b2e9fea13a6b846c02e22a12eb21884baa75fd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USRC11601592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb078f2392c6add0ff9fd733c1c0d3c7dc48d3d32fb61307d9092f22b00da6d45. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USRC12303031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae10fe3f80ff711feda860929baa69bd734c4a3fb7dce4ce9d4db30c8cd4456. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USRC12301393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6333c2b131bc2737f629b930be4f1afc72b455f16e2b9d77dbe818b55b4f40. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRC11601602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac22e01166fead0550c6471122124b2bf5ae518bb70b5ad496e82ed6473c8d4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USRC12301385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a355b827b0d9017e124b96bfd93317834e5feb19f5db707fc53a3dd52ee17f1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USRC12301397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e13afdd59ef5a5385fcb06f4787be6c8402a21c008a2a8826aec06bd2d39d7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USRC11602230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5085a87cd9194f29b14a226ff7db977ea8560abe46971f7ff786758e5589bd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USRC11601594.