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 0x5c20f3775ccbbce621cf400760dd873d279a6bb23d80111427554403fbf7f062. 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/eb6b45f3-3c59-4c58-a14e-5484679efc6c.json and https://artists.proofprofile.net/proofs/artist/eb6b45f3-3c59-4c58-a14e-5484679efc6c.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 0x62f7c820ac7faa7d0e0f2b5b558d82419ac9b1edb181b10bbd7eb112097bd0f9. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZK6N2316060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65bb1fa36433827570ee93122c4f2c0fa906de02a8666bd822c126a428e3b29. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:55:00Z), 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/QZK6J2349502.
Classical Brazilian Phonk (Super Slowed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19137c7495844acabd4ff60fa32dfc89828a9f9e9a6eb0841384982a1163ffce. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/QZTB22375520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bbc45c637dc1e6c3eeaa012d5220be28e15b808573818c2e17cbc8288adccfa. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZWFQ2316392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976af0c40b9c1a965a4592137034573ef702508a9faf1bc549706bff26350544. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZDA42435887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c66fea53452b7bfe83757c99e551a861587e168bc479481735b2dcf08f6afc8. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:14:11Z), 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/QZES92415190.
CRIANÇA DE PESADELO - Super Slowed + Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983022f7478a6b582a8fae108efb3adbeb830aeafb3644c53221e77ada4d8643. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:15:28Z), 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/QZES92415192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08315b78ffa5f4c7e4d38bc15d419bf704488186e1a65e0b9da1848e23b65a7f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZES92415193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e517e4a3da5b308868ca410811aad144e3dcde72e06675b68bd7efd3eb8cc2. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZES92415197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969584769f58e816f13d24b7f73a83da881e57ebd2972223b7bf9cab150015f9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZK6K2492005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ce1351d13e431ce4d6088d9613102acc1fe0eee21f03bca7ac61a640c73bd9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZK6K2492007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63072b0090e0fc52094f13343f63a4c847857c00ea0488014676a286182931c2. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:34:36Z), 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/QZNWV2430126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f838905fbf57066aac21006c43ac57148b8661efd016ee7260db7dbc0dfd68c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZZ762446894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc1f5ad1704e499146a3a988025ba4bd4302675ec970f047ce77b54bddc562d. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:32:38Z), 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/QZZ762446897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5a5970234803735ab6daee886dd7012052662a18a04931ec9a7842420b2b50. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/GB8KE2500344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe7036824705ba0094c3df37d30d6447fd51f24e6a781f6ed19a1a84a5f36a0. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZPLS2551171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5e88cac046d071afeedca5620c51af6c8f107bc0c48d67337310496f1ea1a1. 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/QMBZ92392480.