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 0x5fe115e995a6faa969dd60b552c57b1c3447f7ebccac755e232c00e86bb550a2. 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/33f2cd78-82d4-4b29-bdb8-e914503512be.json and https://artists.proofprofile.net/proofs/artist/33f2cd78-82d4-4b29-bdb8-e914503512be.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 0x961cf3346b41fbf496c190c662bcb69155f8d6401f50c0aeed98fd4f5e1fa5fc. 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/QMFME2000149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9d626ed1ed3c2f464f066f876d472d856cd91c623850d5319548c04da00b03. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZTPX2363917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15fbffbf298eedeee5e3ebbc8bf207701cc0c68a3355d0e5e608b22e5e8422e. 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/QZW9K2335755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e33159f8b3ae1e289069566926d6a42d5c0eb8d246dc2430c005c9486d33b5. 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/QZNJZ2434819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5e46bd99a8fbe67d7af6955833e281b8d2a751f5fcd02e990e0a93f9b78c76. 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/QZGLS2494647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01bfa925b91e9e3899e06004ff5abd735f962ed38b3f675323c79c5b58c6f1f4. 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/QZGLM2430672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a04c5e4b1f573266b9c746b47df1c92978c95ecf4495ae9e7fd72b6c5acdba. 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/QZ5AB2460515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ccf7f1f1bf15619ae356b27ca6abed39fbdd3cfd1b9d2eb5e1e25fa763faa4. 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/QZ5AB2406861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15fbffbf298eedeee5e3ebbc8bf207701cc0c68a3355d0e5e608b22e5e8422e. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QZW9K2335755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5fe69d476c67e7369d0c3c5f04d2bd6591de062371f95c187515a5fd28236f. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QMBZ92259587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7742d63677067056ff8aa92824287d08cff0ace3aa3d565638668bc1580950f1. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QM6MZ2207799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8743fbf4eb999ebb8339955f67da5ac775b365f270a89c93d337cb1d8aa896ec. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QM4TX2285131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6025237bef57ced94d35bc29c81d156faa82168546cbb4be4a8ca9908f6029. 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/QMDA72139517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8366feeb88843f6bed4bdf616891bbbbb448ddf418e872223d87caf8562dbda9. 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/QMBZ92109487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5993b44672c08011bc7c1fbba45250c38eeaff0f52a600bd58395b8b3fd83f. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QM4TX2176014.
No Comprendí Tu Amor (Jorge Oñate: Un Tributo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee0ecec40bc4253e7fbf2692b3e77f5727ee414dd2fe5896d608bbe9a7b417e. 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/ZZOPM2104755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5275e74ac272abbe26fe30abe884cc97e30792bde964e0176faada38f4c7dde6. 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/QM6P42037002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab64f75c04162ca7bf44e5489c4839ca8c459b0858da70dad8a742f5bb1504e. 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/QM6P42017382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d61a70782b3bce33a817795c0e8c8a7ea7a9426635cdb8ebcf6da40946d3ed7. 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/QMBZ91949229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15a9081b2d7f9d3b8457466107397ffc513880c2be8b1c4345a54ad28130b1b. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/US7VG1822891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3c53abce2b37936274f842cf41c665ad736a6d67a90d12e486a8a721bd1c4b. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/TCAEY2046818.
Homenaje a Cien Años de Soledad en 6 Vallenatos