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 0x9561fefb50b27c327cf026ea597f677f8f53638fbb1e1dba160449e5b7a155ae. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a3b081f4-e36d-48fb-8bfd-312d2847ec0e.json and https://artists.proofprofile.net/proofs/artist/a3b081f4-e36d-48fb-8bfd-312d2847ec0e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cinnamon (Original Motion Picture Soundtrack)
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 0xfd2dac498b188d625e4548df598dc85df66f6ded3d0222662227032bb16f0d3b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GB6LT2301890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa856005d1f782b0e8b81efb5131cc82e57ca9e9f799a4da55781d5662e388e30. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GB6LT2301891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1596b1d6e23f15a5bdde4a6c2215a053ed74f3b25a24c52c932934c7dc5277eb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GB6LT2301894.
Maracas y Tapas (feat. Michael Van Bodegom-Smith & Nestor Estrada)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19955191c514e0677fd7e6cea5afaea53f75042db774a8fb563d0f68c3a19ac7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GB6LT2301896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1118c4f3b0b54bcf0d70f2ca23cac7553fbef3947df00e6c1707d720177cf272. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GB6LT2301897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8220b3129074048f7bcaffd97007ccb8e678fc6283829f82fa22f46c01fb00a. 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/GB6LT2301899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f2b85b3fcb0a90a1adfd7758d104e8994036696b0406d6d07a939ffd9c572a. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:29:26Z), 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/GB6LT2301904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1478b640ae617e51098b106b7c0b708e1ed8c6709f2edbf230fec63f2272d3dd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GB6LT2301905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96fcbb6b06e9cfb588f17edee2a670487adfc49f803a2db0049e89b3babd5c2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GB6LT2301906.
Star Baby / La La Love (Reprise) [feat. Daniel Ciurlizza]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f35d48057c0abe33c40f0964bd7f0890433c4e72d15a46795283677a60db636. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GB6LT2301908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f483f4b6d7e5559ab85a7135484561d31b461ef2668041d7ef4989bb9bdd97. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GB6LT2301909.
La La Love (Sped Up) [feat. Andy Platts & peterdoeslife]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace4df313a1a16a1fa527e54b7db88018d93722fae7662567490926595453fed. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GB6LT2301910.
Don't Fail (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6b605570b738809c8308eaf05eee0d49d62170d9892054c4f166d83966f592. 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/QZK6H2290141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab361959926401cedf808b6de9f11f450858693fe996756bcd46afd7f7f1bde. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZK6H2290142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6cb8bd5506a3503bd5a9c03839c35ed7740aff1e4c050c3a2b3b63a6ab3f8ae. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZK6H2290143.
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
Kenya's Symphony (Original Motion Picture Soundtrack)
Viva Frida Kahlo: Immersive Experience (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59677c0b06d72646384b5b4cb98a0fb772d60d34267bb9cc9818934ae04e7ce6. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-21T18:36:06Z), 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/QZNWX2141415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d86cbdf1974a0941deb89594928bac63ca52451230744dd4b0fb5ec45bd1147. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZNWX2141416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf2cc39c2a5104880d34cac8d8718c43d49b7e34260f6a7b81a75b94ca6e6f9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZNWX2141420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f41dd8871c24ff13b129d16972ab182284fb8412b1293bcd106a8c755335455. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZNWX2141421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071a1ded6cd6a00eacae738406de8e5cc3c6c5c1caeabe5e457cd610fb6c1896. 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/QZNWX2141422.
Who Knows Sound-Akito Goto and Julia Stein
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e57661d582709197c81ac4f352e606755e1d3c33330c6df74cbda4217a7b8f. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/QZNWX2141423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ef2160bf5a019768f79813ae2ab62ebde13b6f18aacdece90e17816c018034. 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/QZNWX2141424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03e404ae33775b09eee0b1deff5c9ceac2ae1844ed1575f9159e0f46bf50a25. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZNWX2141427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f2ef9a99d5e820b8a5b9947df9fbb4d09a5cd0a48f45a7a6139fd292cebb41. 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/QZNWS2420768.