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 0x00cea72f2f9a7218231d3167b21486ae3b62b33f4c2b7a034e2168f1f4e5eab2. 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/0fe7fc7b-9a83-4ea5-9e75-4537e1dbd383.json and https://artists.proofprofile.net/proofs/artist/0fe7fc7b-9a83-4ea5-9e75-4537e1dbd383.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x33c699d70bb890024e536e3bbac3b00d73eb6a1fd1d9c7dd111fba41be92378d. 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/GBUM72202205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0419d5c784fef007fd021f710b1e2af3684987c1094e347ab8dc7a5c50e925. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US23A1540060.
Rocks (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2334745c65e088d95d266f54341826e2b980bc4dd7c6d2620f31f39ed45eae. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/QZHN32072185.
Plenty Plenty (feat. S1mba, Midas The Jagaban & Ivorian Doll)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ddf6614c1f8fa8b8e33d68ef7fdcb81a0a8329a372d9951c004096ce117dfbe. 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/ZZOPM2106707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ddf6614c1f8fa8b8e33d68ef7fdcb81a0a8329a372d9951c004096ce117dfbe. 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/ZZOPM2106707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf78933adcf82bb2535afc9a21bfc0c1462b5fa08df131bd9eaa7298129b778. 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/QZPLR2130175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23735c3e3b4026bf8588c29a26190d728a7fdb3ba9c70a27a9dc12818a0bbc19. 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/GBAHS2100141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23735c3e3b4026bf8588c29a26190d728a7fdb3ba9c70a27a9dc12818a0bbc19. 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/GBAHS2100141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26de980434687600ef471cc7a862ddafebd2dbae9a7c1c046d9bdd2b1ddbc5da. 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/GB2DY2000549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf6875ef4006cbadb5fce90657488ec23a9eb2d417242b9b6fa039205256566. 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/DELV42300557.
Ginger Me (feat. Midas The Jagaban & Zinoleesky)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5387d5581db8f968d07427fe76e24ece457c379d07e2b242239af752a25b971. 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/ZA56E2100803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26de980434687600ef471cc7a862ddafebd2dbae9a7c1c046d9bdd2b1ddbc5da. 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/GB2DY2000549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603c3fba3449c9be1e63a0b4434bb35f3f202e675bbfb63f0419709ca9d26f77. 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/GBARL2100863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26de980434687600ef471cc7a862ddafebd2dbae9a7c1c046d9bdd2b1ddbc5da. 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/GB2DY2000549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2334745c65e088d95d266f54341826e2b980bc4dd7c6d2620f31f39ed45eae. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QZHN32072185.