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 0xfa7121ead6d0e565df6fb75aa316c4e84a7896da947cbe3f4ee75e129b5cb1c2. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4e58b3c-2cfe-45e9-8129-a303a7749bec.json and https://artists.proofprofile.net/proofs/artist/c4e58b3c-2cfe-45e9-8129-a303a7749bec.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 0x0d8087d5c3815fafa45f5c73d0a5ffe6893fa4d0964778388836d61723db2727. 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/QZHN52475467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adf50916e8393aea40994e5d4a8626af52aded41f474b06e620a7a1c01777dd. 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/QZTBF2303674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae3b0cc709d058578698c6b773225e26b423326d42f26e534e741340d4459fb. 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/QZTB62306610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7d1e2fdb932d1fff488cb5964ebcc7a5af0df73c45c794db11331af984a278. 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/QZTAS2300293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1a6e65214bd7ad1ec9e63e1b54b2e02cf45e2a3ee71511fa991d5b1b649629. 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/QZRP52397823.
RIP JEYSON RIP YAINIS RIP AVN (Tiradera Sin Mascara)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9bfbd90d55356f20b4f0d916f49acd03a53c3ce4f1b028388e7fb8115502b5. 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/QZNWW2390927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655c49e8b8f25a33cba5ba953ba231ef0249dc85070c04e018fc1826313a5eaa. 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/QZNWT2386979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9d9a4cf0282704ab131ca41a903a1e902b6bb84fe5b1d1f4a6dc55a4999e53. 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/QZK6K2359631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ecb715fe410c06a12cf61cc32b1c550f6ac176e64d4a8f5f8ed8d2bdfcf582. 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/QZK6N2344080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b19bb0e5941077e386bd04b3ccd781d81ebc7d651537515d891a2107145170f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZHN92329058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9acd30a1c54a159c4335e9cbfcfe0a8868f39f12e64d249f87e3cd8cc6178637. 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/QZHN92300184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870edb97380d73ffb8b12d2a22978f2e999b7d1ce7ad567dc51c7341c547e3e6. 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/QZHN42328894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa306116d52dc192adfd49f3e04a9659bdbe4ea58b3aa1e9a915f012077dbeccf. 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/QZES92340302.
Sube Una Foto (Zabdy Produce & Leyva Music Corp Remix)