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 0x66b32926b5520282e8208843cb9a721fc8e1a66dcc87814c80d091770eb60eaa. 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/f53e5758-6b7e-40a2-adfc-7ca54785add4.json and https://artists.proofprofile.net/proofs/artist/f53e5758-6b7e-40a2-adfc-7ca54785add4.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 0xd42aa371717a054609aae8d92b8badeffc8322aa53b9e6bcd69931686bbfb38b. 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/TCJPY2327119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa200fb0dd839b9ad925e814c10230e63c975e9b70d38b70313970efaaac4f7aa. 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/TCJPY2327143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597608d388c4ff98d3a7175d89af9e7c753088e0717608c4eebabfb71ce7a69d. 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/TCJPY2327154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e2d39bfacc9b0add002ac8b24693e022883996527c16f5f4dc3078ea18b6a7. 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/TCJPY2327167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7549c026ed061bb200d67a4fd2ed49d27470d116094c791c661ac3c9a933aad. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCJPQ2108577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54a6873db92ae62b8f1b5b6541c11c4329a9e6074ebcc86962da2e32345d818. 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/TCJPQ2108579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1691978619534008fe6166739689e40b115788da50bdaabb16835e49ce1ad520. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/TCJPQ2108581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe162a1ad502b863cd2212edfe50f88b0ea4c25f50745df576ec312bf4601a8a. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/TCJPQ2108586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a60cd58f4983520d30404bcc2351444c935c8d9512c2a9d91d561ac33a6ddd. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/TCJPQ2108595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387e94a9b49daee962d9462f16cc3e08b6059c05fafdb5a950114058b5836eae. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/TCJPQ2108598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03e9bf746e34a875ed45bac73ba0c365b69013e859f4a6bcc442ca00bb5b9b6. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/TCJPQ2108600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf500dfb129f67e34fb91beb413a0e11ea38ea2b2f21f26136f84eae15943d82d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCJPO2174077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd2f79d67e4d00c0ec6298a93d5d966124cff3ba945deb12d7066eb96b77f2b. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/TCJPM2042241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d316f8f9ad37c8fa20243820b1e197c3b6cddc2829035f66bd04052574d3625. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZTBF2451887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143e01aed234313cdf3fdadc27db5718f5d77ed99f9da9e773bd3ddfe8f4a38f. 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/TCJPB2467621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa553d0c1020d804f9893c8e07529f038e8cf377f104a7827c7cd0c866ac9fa2a. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZWFM2346598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4c3ef63817c740a46c5273caac66d8313979b6ad93397f6aa465f713aa4dfe. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPS632300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995ad8b59880e88145544ea9360ba03a3bea62ca9730407fd3f64cc73fadfb63. 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/JPS632300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d60daa67e972f6938d82f5dc1ce29882c3b749a06d6aa12025219279b697af1. 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/TCJPX2365070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb72b1ddb4cc2e7a7a68f76437ccb2248c55bfde3854fda0edcf9f2f1e8a517b. 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/TCJPW2350276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12486d801cb5ac0cb78d7c3d661b4855ebf6e558dd0ef336fa9a0145639885bb. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/TCJPV2327449.
BREAK THE RULES (feat. TomaFrom86 & Reichi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04da9a75f655b636540e7a4aaa54a9f7457727b28d814392c6c0a5b9309a328f. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/TCJPU2375336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd2304665b6301b235394858c0404093c88079950a6e2443b5c889386ef9a7e. 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/TCJPT2277679.
WASSAA [WASSAA] [feat. SONOYA, Kangry, Malcom, LIL MAN, MUMA, Marq, Boo a.k.a FURUSUING, Ken Savage, ZEN, T.O.P, LE-XILLEG, BEL, BAK MILLI, Andy lit, Henny K, CODE6, Cz Tiger & JNKMN]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9487831afe9e1f6c6fa737882b481f648d3aa77fbed5dd340388a34d9893c9. 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/TCJPT2243010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf01edb2287cb765192d9b0bcd3cfd5ffe8be6525cc2e039436a8cbebe63de2. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/TCJPS2283941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ecb8b3a71a0de4c244b5bc935b3a813778d862eec526d780b93ed43b532cce5. 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/TCJPS2211521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3e083221cf8204fb5ed96eebbbcc14865ad248b52ccedc6c3fca6cb07f3d2c. 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/TCJPD2546942.
Rapstar Cypher 2024 (feat. Tepa Roucci, Luka Hatakeyama, TOKYOSEKAI & Leon Fanourakis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b220ca3702310213f88246ccad418571709f4464d42e9caeda18d1dd221d8a. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/TCJPC2481484.