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 0x362abb82409c57c5eaf8306f37f48a131b4ccd6787da8bd96eb164018e306838. 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/e6447bef-38a9-4931-a808-7a3d6f976f5f.json and https://artists.proofprofile.net/proofs/artist/e6447bef-38a9-4931-a808-7a3d6f976f5f.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 0xbb34605814ec9f8d1d582ac8adf596a661f90fee1b042b481f469e5223b579a8. 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/USA2P2339592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27668afddd240866f445f36edf76aebd29e660702ada9cac9a793aedfcd2e349. 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/USA2P2339593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5b5426c0b7f51eaa67415c11707e0fd0f4b7f1b6ccc12819247fe61e15c170. 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/USA2P2339594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998abe3c55550223f14bfde69311bfe860924485f11012e199ba8969a97ec8ec. 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/USA2P2339595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e4ab700d2d8377eda7d3847002c7d24838d70521b888ceee97e1ab8a618c87. 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/USA2P2339596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8a7bf096dcffaf2d1e2a871dfc2890e0ff3c436090bcf2be92833f930e9546. 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/USA2P2339597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06467c0e2f0637b611e281ee61661fc9e47d0359a7bc5db0b93e27e72b1e3ed4. 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/USA2P2339598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df529c6496fa43760bd763e6df31aeda052d075c7c071e08aeb06a69718e038. 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/USA2P2339599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d54a7c6661a23759568d89378404485bd4136dfe388be6f3bb933ce38abd78. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USA2P2339600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25ff90bf7775d2088d59a304ec6ed224542b9f6442ba2edeccce9636c27a55e. 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/USA2P2339601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf5194c6ec30be57dedc2f99d1f61a5feef6265d5bc59a431ddfda33cfc6f3d. 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/USA2P2339602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda0d9634de6e4f81239d5ec537b8201d24a5fc0b46bc940fe68af95d3709526. 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/USA2P2339603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743714b6f1964a9d0ebe9f1a13c8945463d435cc02121aecd41f0eed5f822078. 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/USA2P2339604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3444a63604a67939e93572373e560b5c0ab0ce0551c72265c128cae0bea2a088. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USA2P2339605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b188df569564b4f7f897393b0bdad6906c29ea173eeec8e704bca490e42a81. 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/USA2P2339606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9bbb3cf4d64838e3d0e5713eb2b638a2d7b8b18d59d0a6bd0b0e79f3e5e0d4. 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/USA2P2339607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4178fc587e3bb0f7bf6696c44e84a583f11d4ddc6033c8b7f98feab59b8dead7. 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/USA2P2339608.
Rainbow (feat. Young Nudy & Bermuda Yae)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c16426033af7033875e1062284c06e673e385e9c98685762661794c608b765. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USRC12002303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6421a22b3389dc29edd488374ecc73417e39643178da7c9f0567a7e0103cea31. 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/QZ5FN2119468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277d65550f9926c5edcfeffc657d939e57dc6cd75dab8a1dd54deb54f7e7aa5d. 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/QZ5FN2119451.