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 0xe1d7f27659d37045cb6d7f1d101a7096a5e491d8fd5f143e74e57af7ed72a44c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1791ecea-fc16-420f-bfc3-e74a96f7eb47.json and https://artists.proofprofile.net/proofs/artist/1791ecea-fc16-420f-bfc3-e74a96f7eb47.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 0x9d86a9ebd2073dce246bc32caf13ec5588bb961185bc5eae3b6e74144e5d2a1c. 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/DEYA12000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7207427f87b0be612b0399e60f9c4fa6aa4d3b451a4ce7bde00f691272f9fe9. 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/DEYA12100080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0244350c901d8be69323c0caff194851ce0ddd49dcaec9be5977959860d66e34. 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/DEYA12000089.
Orginal (feat. Jay Pop, Florida Juicy, doubtboy & Young Meyerlack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92616d7c73ec657dd8d822b4abe80de015562dc721ce7b8ad65e32c01aeceda0. 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/DEYA12000082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e05f5916b3732b49f1fd6ca541e272c92ab78b5e1a62f37877de427d867798e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEYA12000091.
Möwe (feat. Florida Juicy, Tightill, doubtboy & Jay Pop)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec826725c7db660837217d704658d8ae910bed1db76ff9a3ce7d63317d2ec29. 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/DEYA12000095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7066514cf5879273db51f6c90082f8fa6803bff530dc94759b304759cd1693f. 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/DEYA12000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92616d7c73ec657dd8d822b4abe80de015562dc721ce7b8ad65e32c01aeceda0. 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/DEYA12000082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98babe234e338610034722342cae673caa68425503c944bef3046c20ab9bd006. 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/DEKF22301447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b7b24962261b4fa0157914cf4e9cb2271ac75e885cafdf356c855ed85d280f. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:12:59Z), 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/DEYA12000087.
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 0xb8d96f15608a867602e24cc69758b940e9fda240f58eed7f291c0b3f47a0968d. 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/DEQ022370310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dcbebb6af88f94a483cb3408ddfb04f5dba74fe64f35e895dc45b97293030b9. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/DEYA12000085.
Themesong (feat. Skinnyblackboy & Florida Juicy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac8ebfa31d463682cf0e8c4a66a13d0046a2d36cb9805e3959cc33b63d5dcac. 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/DEYA12000094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8691a3f8da7079288ebd67382eb3ada45ba5cee85efe736d99d62a55d96afa3b. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/DEYA12000097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc728ba0ef15485b29d22dfb2d2a509a4758d11d0785453ad9b1611d2e80298. 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/DEYA12000099.