1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x4690d2eb188e52b8ba3890083d001cbfb94ce682d27e99e8d630f9c86f19fbfa. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a63466a4-6c02-42ce-92c1-64bfc06b6288.json and https://artists.proofprofile.net/proofs/artist/a63466a4-6c02-42ce-92c1-64bfc06b6288.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 → block OTSBitcoinBlock must exist at that height 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 0x5f97b4183d57a994b9f4c834a1ecdc34ccd2dbbd534ea9e8047d81d9fe9486e1. 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/USSM18510014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbbe5c42c5e9b1e57c09689b926b0756e259f9766f264782ad0adf9f79f43a0. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/USSM18410011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066adf486438b48ad95c148f6ab2b11321e0a5c6b06ce7d98b4429feeec9d54a. 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/USSM18410012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c7533d23a502eb9c48f9bfaa00612c5498910f1e15aa6bc2af3610b654e260. 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/USSM18410015.
I Don't Want Nobody Else (One Woman Man)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc975f97cd76c20af1845d8a751416acb053cf5f528b8fe3fddc2338048816a7. 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/USSM18410016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff50633f5e72848650b21ba5694668cceac7ecbb2ff211743ffe842feba0a4e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USSM18410018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a201d522125aa63087a77b84dacc26dd94035205a7f5b9e4f33b39c75805f1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR6V81737697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d5bbc02bfba807869ddc14194c7f502f0802db4a41072b74e3114c8c9d5ea6. 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/FR6V81737699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294acaf04ecddef6571e8406dd0e55310a70f09d95281f99c7865d386d177cd3. 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/FR6V81737700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba9ecb71bfe650d32f0c374e624533ca03333cb08534318ff491740388a27a1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR6V81737701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5266f3b5ee87187655f58b6cb0afe76e7452c9bd25454531d133bdbf400539eb. 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/FR6V81737703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51c1815059bf93079c432d7f4de8304db39c6f29e769936c985502a9b087857. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR6V81737704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4f9ca969d7cc587b01e3156f9c16c1b0735c96fc9e947044ba17982f4f5f1f. 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/FR6V81737705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fba8e29a3b6c36bb6b307aa7fda9b6982117f0b576edbec1735eb65b37b739. 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/FR6V81737712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4884a0254b8e20bb2df7b81cc7784f0b1fb4449effd267f695c155d3f78b8d5. 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/FR6V81737714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903a4a0c3ace6ef1101b762568b1ac5ce599691134687e77f12cacd635dbf8d7. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FR6V81737716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232c208d545ea1269a59f7ee8ca2594dbe73c43f4758edfa014207d1e2f14ce6. 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/FR6V81737719.