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 0xabbd6c14d361b5e48e7b0e4006920d749940e402880e1a85de9a8cb07c6a93fa. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/318ace8d-af41-477c-af11-f1c9cb717364.json and https://artists.proofprofile.net/proofs/artist/318ace8d-af41-477c-af11-f1c9cb717364.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 0x9bc14773cdf1f430b8c91739762733f61121f21f2e66912041e0246f063477d2. 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/USYBL2400734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5942580b659b4967081fd12916c523edea781b4762dc53c9a852dddde5ae89fd. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/USYBL2400736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaca69039050aa3895f535e5fb984dadc36bf241e245499e89df02c4f6f59888. 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/USYBL2400738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa2c0a21cd3d50ebed809536fd3ddb1b583eadf76cf2d6d7fa21806fe6e71ee. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZS642229472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4df503c7df636b216097913d7f47b7f7366a8cf7a7b9d81f8e17dbdc088b7f. 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/QZMHL2316473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837727fbae982a59bfbb8f9d1e7b664e6c8dc34b9c2c8e3c5a026f47d9ca0d64. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZMHN2384353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0080c04795783d641e59e896a27915a6211e5cc67bedffa7ce75fc1f4696fe5. 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/QZS662161887.
ESTO ES UN PERREO DE ESOS QUE TE VUELVEN LOCA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4894516ace2dcdaa3b7e2dcb60b0469ec83953a9da1953f3a11c821bd32c8e4. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZS672119594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f2face34907d081358e4ef18296d2452b48f60d045efbda115d86409c5100f. 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/QZS642211347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640a312a56fddef22029a45bee1b62b9693ebe11ee3a4592e937d0f6f2e44652. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QZMHM2338783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7057063a28d773d8b41f00e4cbcfd6940a33a56dcf45a372a0af4dde6b557b2. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NLCK42237737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4050aba20bda52fe49fa324d2794157b903caea3794a8b9c04efd3196f23de. 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/QZMHM2533592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41159f8e87afae10c25409049338dc9adc1eaac83a34d1414b497202b4ec02b4. 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/QZS672456035.