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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663e5b173d58a75aa16fce745790bfa7f391ad5ae17b473a2b8609cb60bf2c40. 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/e8806952-4e9c-4e68-b1e5-bcadfbf8ed57.json and https://artists.proofprofile.net/proofs/artist/e8806952-4e9c-4e68-b1e5-bcadfbf8ed57.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf346e0c5572fca264705cfb1b0fb857d273b39ded5ef813fd7bfd48d5c4f75cf. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T07:56:12Z), 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/GBSMU3952638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49855fdc15bcbcb19170456d772a2e623966c4bd4710b45fd7b144523a6a1f45. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:23:50Z), 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/GBSMU6327204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a3502f5e14ec4d56fdbf9c606d6da30980eda9f0145c8ee7875851d7c2a0f9. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:32:21Z), 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/GBSMU6327205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e591c394c601eb4e629bed319230bfdb1d00d0eabbe371ebec246635d15821. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBSMU6327206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a239ff068ca8dfbaa36d3bfdc75c64ee174e01715f4a8acfdb27ff44e389df. Chain 2 (Bitcoin): anchored in block 957569 (2026-07-11T12:44:25Z), 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/GBSMU6448429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93ec10a7c43508426f326acdbf521f7e1974994fad1061d190ec024ee0f7d14. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBSMU7718568.
Okay these 3 songs are finally on streaming
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab99b46d966a6721848a4b9b9dce9c9613863be5352e8fa793d94471f42451f4. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZK6L2164691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e00ac14bae95fcd1c76f8405e0f8bac210ec3d97516f5a8b27ddf5c9434085. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZGWX2249633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa552d7f16b170f6409f4422f119004c22656213a1b5f45b5826318a543e00db4. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZPJ32104631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9741609c164cc59e4e86ee8b20fdba83350f4dcd33652e1535a83688644e02. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T00:35:42Z), 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/QZPJ32104632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e00ac14bae95fcd1c76f8405e0f8bac210ec3d97516f5a8b27ddf5c9434085. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:07:24Z), 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/QZGWX2249633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9741609c164cc59e4e86ee8b20fdba83350f4dcd33652e1535a83688644e02. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T22:38:23Z), 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/QZPJ32104632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6db13a9e60b2a12d7ce59298b12a18743409caf1aa9df96a35885bb7b5af124. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:54:05Z), 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/QZPJ32104633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5855f53f3516c64920232f1a627fbbba9a2ad61fbf99f148bc00810757784ed. Chain 2 (Bitcoin): anchored in block 957569 (2026-07-11T12:44:25Z), 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/QZPJ32104634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748017ad18931ba5f20a007d7d1c61e136e31a53abd29a27c80ae409b094c200. Chain 2 (Bitcoin): anchored in block 957564 (2026-07-11T12:19:47Z), 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/QZNWV2326094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748017ad18931ba5f20a007d7d1c61e136e31a53abd29a27c80ae409b094c200. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:47:24Z), 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/QZNWV2326094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051082fb7c130ca0d47f87b5ca51f7632be927748c9b7a2b766feac5581ed9c3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZNWR2216636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aed062781da893d36a55f106148b38d9b63eb495ac1b1e661d1e5cb0cf82bf7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZDA72488018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ecdafe0e49a637ef27820be314a44d5301860d57c1906d402cf49671ef2193. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZGWW1916349.