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 0x2c52d4a3f2043810f6bf06f04251f7359bd6351368762d2e5a7d839cf54e728b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3b12dbc9-ea5d-4301-ae22-c6a4e0d08e3a.json and https://artists.proofprofile.net/proofs/artist/3b12dbc9-ea5d-4301-ae22-c6a4e0d08e3a.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 0x1cb9b224467c8579ab9da3068e35838506d356df5e8d859e2a1037b74bee75ef. 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/CA5KR2396197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd9f83f7b4c18754f4b4557983b71ac38414b9b46376df733577d774921085f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CA6D22100143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e8f5ade80257468dd7ee0279f529dd24557e9eaea0eff512eddfc852c0ea23. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USAT21702157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a90631d8a61aeed83fdb1cc72f5f16c23a7fc26fa0c7c6110db725460fa334. 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/TCACA1475246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd9f83f7b4c18754f4b4557983b71ac38414b9b46376df733577d774921085f. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/CA6D22100143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884bcead5d9f825aa6ac60cd656b29e76debaec4b9beb4caa3e4628586890ee0. 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/NLZ542200658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201730f38af967831a8f9785436997706269d75b3fd5105dc0cac6ed286adab5. 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/USAT21700321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770b16184e1b2c0efbbc15187de258f12dee8944cbfaa9ebd31f87f3fbc45bbe. 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/USAT21701165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364a214dcbaac7e64abb0d71c582013aa6890bd06602822860e7c76afe636773. 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/USAT21701179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de7e1e29ba71e05c7e12e7265c409a5ba6a713106f42a7a30c10f9e39276e59. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USAT21701167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8328ec064a574141899b742928175586cd4687b769f2361e83fbde57d60a35. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USAT21701163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac920b34d16a360978cda3191c25f58a40617ec8699c142540a1462d4250d9b. 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/USAT21701164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c451c24d348eceba498603e38743b6fc70b60078f79e9cffd0b963e71eba4b. 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/USAT21701166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb820fbc037ea490d0447b8d108d76ffce062067506c40f9a7cafd64edbf53a6e. 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/USAT21701001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea17f7b1d29d8a53509c2ebc534cd99b45cb1144d36136933ac1605b53ce2fe8. 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/NLZ541900416.
All of Me (feat. Logic, ROZES) - Naderi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb359233dcf36b63ed0346dc4a3b6cd94b325ff1e4a9fe2a8da2c8115e3554f85. 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/USQY51730534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252834fc6bd484e1e40fc677b6fe2b0cef8f4e2cc3a87984b39617bdaa2a7382. 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/USA2P1679645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb359233dcf36b63ed0346dc4a3b6cd94b325ff1e4a9fe2a8da2c8115e3554f85. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USQY51730534.