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 0x1d318d45fe70e8d3c9399fe53bdb997f621cbc6ab4d1635dfef118eccc71b718. 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/5a1c2f28-8589-48c8-936a-7850a3c233c9.json and https://artists.proofprofile.net/proofs/artist/5a1c2f28-8589-48c8-936a-7850a3c233c9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Il Mio Rifugio (Original Motion Picture Soundtrack from Tandem)
Notre-Dame de Paris (Italian Platinum Edition)
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 0x7af1ba4e4a3c204b7ba52a66ff14beb47deab93784f3def62e160901cca76572. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/GBERV2100070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04e0605d0298d92ea68d739ff295b62c3dbf41d7d9e5a50e448888f5816f307. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/GBERV2100080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9c22e3662d9dcea2f95e2ad91d0e7ef91dfe0fb5ed307b82a9e32c620e734e. 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/GBERV2100130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1dc5bd4815e02f02e80af20f6c76b13a88f11c9a360d0e38b9661f4b8df8ae9. 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/GBERV2100140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6819eafc66e92433be7d5b5b4bfd637966e1e1d2848748dfd41b480aad12167. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/GBERV2100150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e2acc813a436043189303695baa8037f73d71596e540bf0498899aed83aa19. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBERV2100160.
Notre Dame de Paris - Live Arena Di Verona 2002 (Italian version - Opera in due atti dall'omonimo romanzo di Victor Hugo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe902dae7f85795becc347ab307876bb40675c083f3a37771ef505eb365ddc156. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBERV2100530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1375c1ddd1fd32d96bd75edfcfdfdf3a4e21342d50983d9054e52e3b0f3beb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBERV2100540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf676a1eb44a25fb636d11e746e078ea17e32ff3cd2e9c30f04a7a5d832a380f8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBERV2100560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809097a5754103835cafa06cbfa80c165bc7f53935caeaf8df97f57dd3c4c434. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/GBERV2100600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720777e311df971469997de3d96eaba6a21aa30697806a42d916b0fad237bdcb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBERV2100620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9467367fe31e7079f4893bd00b26624319ab92a5541709ae9de998528ea6d0. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GBERV2100640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4ee8ef9e19e9494713429f77d92301ac22af1ea9a77dbf98e046ebe00c0c6b. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/GBERV2100650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28e10c0556b3a3dade1437195739249e0a01a1d2e0e11c26a5b307460cc331a. 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/GBERV2100660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2da6c6baf97c8482383a26a75a15813594230051b60e56213ec80123742a106. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/GBERV2100680.
Il tempo delle cattedrali - Reprise - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4e2949a38159e61b065e286367a44c9a802106a111d7bd5a7192e57a94b1c1. 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/GBERV2100690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1037eb891cdf625703080d6bf990214aba0955c45d809ad4a0685417f76ff76f. 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/GBCWS1411601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66bd80c2f12a10e97d42ed95a5e4a64107dbc1b841882893f0c60dd9bbd593b. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/NLD600500070.
Il Mio Rifugio - Original Motion Picture Soundtrack from Tandem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c84d04a33734d2138651ff502788a0a477305c7bcc147bc297b750e28d6833e. 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/FRZ810810001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8ffb871ed3a18ecb5087ad8a5a2f5310acf9efda13761d2984724198eb7ddd. 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/GBAYC2301403.
Pippi Calzelunghe - Anime In Gioco Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35edb0480387b5a1b8600e63a0fd7870db27cadb096f64da120bb84a1249cd7. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/ITM009700667.