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 0xb10e25e7681aefc573854272c55b567d4809df8294f60325b18da63bb2b1680b. 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/93267f29-2be2-4dab-ab4b-2d141021edb4.json and https://artists.proofprofile.net/proofs/artist/93267f29-2be2-4dab-ab4b-2d141021edb4.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 0x57a6c6cd3466678b293c5c70d669e15fbd927de478f3deae5ccfb393c63a52c3. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCJPQ2125509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f83d095e80dcb9a53254462126b1682b38549c2759330e34758b75c20a29097. 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/JP92L2422600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a782e7ac43e7cab3b47d4cd50f4c3afab4d0fbb6ae9baa327fd72c6a4f6942. 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/JP92L2423990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1cc09c59d0328aee67a00679e84791ffc2c8509ddc52b528687b3282e11f0b. 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/JP92L2424600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5454c1e37ca1dcdf52c80d4e68c1c176518e0637380cd05c50658ed30971cc3b. 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/JP92L2500660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9447d144e7846abf28345c7a92dab9c58b166779431b674c575a7ffbcbc060. 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/JP92L2500670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396977f5cbdb72c8e5a3e534f25331039eb65f770a3175fc9bc0206be08185ff. 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/JP92L2500680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a782e7ac43e7cab3b47d4cd50f4c3afab4d0fbb6ae9baa327fd72c6a4f6942. 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/JP92L2423990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1cc09c59d0328aee67a00679e84791ffc2c8509ddc52b528687b3282e11f0b. 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/JP92L2424600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0079ea39c9168b9bc1cd53a9e74cd75c4b4ed06e1857ee0e6ce977962a101a9c. 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/JP92L2500710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c34bc7ceb6895c9ebf91f4131285ea67a7c71997ea6962e84c572b6d3f9bdac. 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/JP92L2501850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78b52a41b83d41e965e35678f5c68dd04df96c89b4e770b655b884c71fcb03d. 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/JP92L2500600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd265391a94cfa507eb2fb37a9bd49ecdc33800e428c6d2805fdfd5e1699eb9d. 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/JP92L2500730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb43f97981c72430a6465d3364d429dce1188f075f56ed9cd39e18a704b37f3c. 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/JP92L2500690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fd4cb5c751b1803c4936364a90a3900b0724be9c9502d26e244e4aae8e9ad1. 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/JP92L2500720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c9a087541f9d986754ccd730d587b5b472a98c84310c323c88ceee5fa6565e. 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/JP92L2500700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953ecffb17016d5197b6fbb313cec7fd0e78b2722f1ea8224372e6e6042879f6. 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/JP92L2500740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace723f63add1dc7c044182d9c0aa2cdf1dae331e56afe05159dbeadb3c2d218. 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/JP92L2501840.
Be Okay (Chi, Chi) [feat. Kohjiya & YungFLX]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6dcbd4162b09aa20cb91ac7ba47862f6c2895ec1b40b55c413b30feefa65fa2. 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/TCJPZ2484743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4583e945f16db605c974d5660bf7921654600c2e7e57e3ce4c706156135f76. 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/TCJPB2467341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d956873cdfdb9eed31360776b51d8973d95ad01117a17e3c0c26581e6eaeb0e. 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/JP92L2307950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a8b8918b88551db99983f4dc692453f5924143cc5dce5fae928958282ab047. 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/JP92L2401460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571eb03d4aa0bef70b78f6f6ff6656de13514f7c766ce6684304f7dbb57be4ee. 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/JPWP02202257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352298e03f45622787673ef2ca112b8347ba47d28713e57b590172b562b83362. 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/TCJPO2115575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6dcbd4162b09aa20cb91ac7ba47862f6c2895ec1b40b55c413b30feefa65fa2. 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/TCJPZ2484743.