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 0x9c38a5b1da7d7418058077b9c5c7b0aa61539bba453343937af62d143b4839cc. 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/04583d72-18a2-45a4-b980-27c71a9edbf2.json and https://artists.proofprofile.net/proofs/artist/04583d72-18a2-45a4-b980-27c71a9edbf2.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 0xe034dd534b939c18e2a02c6955e40b2939aa620b8e27e6ec73e1a6f1a4910a3c. 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/US83Z1934448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e8b1c4cbebfee1ce128c41ace4f60b8c40df51caf00cd891ab1639298c1e8a. 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/US83Z1934449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa98f88ad02801d2f2e7cb445ca7c4c807b006e9d58cf538f23908896f763df6. 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/US83Z1934450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44de663fb0dcab9085f6c2c229bb19cbfe77580193a3a39e0b9c11d487b52bef. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/US83Z1934451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131ce55634749066d02a0be7e9ad8e82b9cda8d902a64656ce39c499ce6c825f. 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/DEPI81905411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8959e4f470ee5d4052c5c8b9ee222c9fb7b34d62c9ba545ffba98de226ed6e12. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/UKFHN2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b272c642304fe01d23db11a67b89b5f547dae9fb85d086520235f25e7b2ce91. 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/US83Z1824425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac3e081759c04ce8785ff50ceecf0bb655b98af0b2494d183713e38b721b022. 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/US83Z1811172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f7ae2b8c28829f4cd65f5dd843714084c93a07860663d771b8560149478d59. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/USBDW0500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1826c6cfc78d78e52375084ca859023399cbbb3a55497690ba3682576a8ede0e. 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/US83Z2038425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3119956c1e7b8a711f931f87871721afa619a08b68e8e13bc6075c1add2d7ec6. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/NL8RL2430424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3119956c1e7b8a711f931f87871721afa619a08b68e8e13bc6075c1add2d7ec6. 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/NL8RL2430424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ba9270055521004a74b49c5f376926036356d1af760fc390b774b4b87bd62d. 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/QM6P42441399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc694452a960cbf444e2ed7a799d95efb69d1529704ae3068f9297a0ff6f492. 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/QM6P42441402.
You're Everything a Love Should Be (feat. Bora Uzer)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7aee3977a228428804c7e44224312b0ec4fa0ad6db4674c291ae25d60a6555f. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/TRA161500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b18ece5a112d9e93ee0259e263da3f5478b068238d863a2f6c8d0c2478affda. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USNRS2443516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c5ef333fb2e4c6e47d869b1282ce7a5ace8c9b08621c96509d635154617d84. 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/US83Z1932753.