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 0x57724f4af854a25a79d284a6dbf081d3ab767478aab5bfe75c6da06104f74bd8. 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/a783b756-58be-4100-a04d-8fe94217af5f.json and https://artists.proofprofile.net/proofs/artist/a783b756-58be-4100-a04d-8fe94217af5f.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 0x482dc6f11a99809351bfcebad311489aaf3fd8ec5b032f7473f1afd34dfa7a51. 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/GBAHS2400580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0aa13ed08e4be317750d642215d110546881c3a90b258a8338f447bd95bfc08. 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/USWB12402105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbffb229f3f0e1284b7f87c110c2edac812a2809eaad56a64fb7bb007e80824ad. 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/GBAHS2400650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7aea81142d6e28e19244f36ca20feb92c76ba1b840813465fa2f4ecb12783b. 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/USAT22403169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2527e64a6333c2e4ae8f35c53bfd8e67d073cf0e33c075d798f09ba85f401f9. 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/ITV952400315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f9fd251bfc2d832a2041ce9f2a6e578395218d9af661e3ec68873b805409a5. 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/GBAHS2400675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb051178f01167e3da57d953fc77a0ff7f34d758d27b05482713570948f0d06f. 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/DEA622403408.
Right Here All Along (feat. Hannah Boleyn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe33af1dcb6b23b8183cccf3f0ab9d555df34ae1e529789ce2bd633d499e49ce. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:16:53Z), 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/USAT22406811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58cfe0aa3ae8fc715be9c1bc25861d58cfa18fbd3818633ba31842b61c6d904e. 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/USWB12403878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f9fd251bfc2d832a2041ce9f2a6e578395218d9af661e3ec68873b805409a5. 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/GBAHS2400675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb559fceed37cd7a324055b6f47190573086965ed440e167d3209b2f67a074a. 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/DEUM72409347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076a69c3a43388cb6b8c53e3b3b0e575620e8fb9daa145555fd7b442f8868595. 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/DEUM72409349.
Kisses (feat. bbyclose) [Sped Up Version]
Kisses (feat. bbyclose) - Sped Up Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d91b9c17d8002137f603bdf132ac958d080a2bc4f6d659065d51119f211dc7. 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/GBAHS2400242.
Kisses x My Love (feat. bbyclose) [Caleb Laurenson Mashup]
Kisses x My Love (feat. bbyclose) - Caleb Laurenson Mashup
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483df022ea2cbb911290766ea3868bb48311edbafaf1a33b98c42ada4274d4dc. 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/GBAHS2400555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23116e51b7e64f0029355d0f03222b2574d03fa71eb1d4e0a41d7c50a42f40a. 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/GBAHS2400241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad05b441cfd4a97ddf17699349b4b7f702999b09d268d49a506a6f1f038e74d. 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/GBAHS2400500.
Kisses (feat. bbyclose) [Kak Hatt Remix]
Kisses (feat. bbyclose) - Kak Hatt Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637860624b5ed1238f43be376728cb7bc019cc79d229517fff439397e9497214. 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/GBAHS2400284.
Craving 4 U (feat. bbyclose) [[IVY] Remix]
Craving 4 U (feat. bbyclose) - [IVY] Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f71105809393fbccc28be32e5dda81dff6382f992629cbdf4828b6158259c0. 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/GBAHS2400828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318b12c6e04c0903cec7ad0faf7877a54ed3a52411047443a023a202b3edc59a. 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/GBAHS2400572.
Craving 4 U (feat. bbyclose) [Willo Remix]
Craving 4 U (feat. bbyclose) - Willo Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a3c4dffc9ac60694578c68bab6cb1d83cb4f843d0389a2a8b71cb53c77ace4. 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/GBAHS2400868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f9fd251bfc2d832a2041ce9f2a6e578395218d9af661e3ec68873b805409a5. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBAHS2400675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9e4019ff5b4d3fc4c575e3789b397a663a9cc9253d414eab9e7839f93537a9. 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/GBAHT2202800.