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 0x1e48e942e0057d184d8eb62665b45c2b3c648225ed07418b2e0d357067980a79. 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/219dde7e-39f1-4d69-a2bb-49dd27447d10.json and https://artists.proofprofile.net/proofs/artist/219dde7e-39f1-4d69-a2bb-49dd27447d10.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
It Ain't Me / Sorry (Cover) [feat. Spencer Kane]
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 0xc3cf8c7bbebc582135e12dcf558e8e6d91e670f930d12b756e3f24aaddb27d05. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZBRF1867821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d44360599d3ae8ac1d178a5ffb32f389619020f5c6e1193f2fa4e9607ed253. 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/SE5IB1800459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55b34602e436f06528a3d5461b0d5ad2ab03831ea356d132e19e9ef0aad653d. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/SE5IB1901157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83a53177412928c3132b595fc6bff066b40fdfa79bf3dae551c0437094eacdc. 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/SE5IB2000072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3113107657907989f6d31065ddd76f588da73e2ac457405432157b865e2da3f6. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/UK6KW2000390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bbf0165d7395c8ce68d86c1aeec4d4debeecc5c41b97c50dc7b40fee845a601. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/UK6KW2000397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f36b69c6579cedff1c08dc6943447e2bb2a993f18eea0e79a59f22d865de5e. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/UK6KW2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ccb2cc0e5358467fd72453398c203b8f99f15348c742665bddbe5c020885a7. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/UK6KW2100397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e239c305426ec90f9c4a60fff5b40c2f3baf489fdc4e357f0921b059692ddc. 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/UK6KW2100649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9733dc743519f27a3cd7e560d9eae44ab37bd82cb6c595ff47c1e077373f8a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5IB2276865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced8d016f177b16c3713ed2df64e53a316c9be6cb3e56c8fa22e4afe71fbb746. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:55:56Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYZ2339021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f2663f65b4dc339ccd3a619f6590f3cf1f55129d9d38bdf4bf00f0e0584979. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:35:43Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUYG1535702.
we can't be friends (wait for your love)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580116dd558c617bda75fb4c9c8b27912478fdddf403a5942970603773b3c86b. 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/USUYG1549114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ee5ddf8fce8cf9824c04cc6377789171759c863f88fba61e604654d6275524. 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/QZPJ32398175.
It's Beginning to Look a Lot Like Christmas
Love Looks Pretty On You (Acoustic Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa132483bb85d86d6e9227e615872bd0284b9345957255af0aee83bb1006cba7a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZNWX2489426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71321c5f9777f5b242dd7ed7617da5dc6cbf175b7e3d0460bd518fc24ef11e4. 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/TCADW1863542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16757efd8f26e5a4216fbaea0ae3c0ac8b6d5f56199ed96f0257b0ee0afd955. 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/UK42F2300211.