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 0xe4b247e65c0bc1abd3774f6de29687f63f9bfbeebc70f8a9ce79c6a67f2e5d29. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ddc21d15-2205-4885-8919-d19523b1d0a1.json and https://artists.proofprofile.net/proofs/artist/ddc21d15-2205-4885-8919-d19523b1d0a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Exitos De: Cornelio Reyna Y Lorenzo De Montecarlo
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 0x77a2cd8c874903e5d04a2c7cfe2c588bd938f6aa14341b02acf9fa130180aabc. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USANG1918452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c26b87aa4468f62437d4bea0163b7445df16e7c432b2ced06b2f085ad8bf9e1. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USL4R1937795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38cdfa7f70825cd418fa2b5546aa06d40bce10457e8b82a72a0c47315f7ebf52. 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/USL4R1937796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5802bca0d57d6427e983808bedb64a22dd1dfcc52dfcd2b59c119b1e09cf0578. 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/USL4R1937797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1ce0c21f1993117237d656899689b9fffcf655685063ff561f182e4f60da3c. 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/USL4R1937798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b54b66651656c8c46244f8d601e33f1fcf055cc669416bbf51cdde9ede7e33. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USL4R1937799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79ab579bf49487b7e4d991448d3143de6542317b37e98342328756969b2d6c2. 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/USL4R1937800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06da8d36cd24ff369995c846b8a94a5b67fd671b7160b02c0fbcaa09b4a1172f. 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/USL4R1937801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49470dc9fd27a64356bf1b0802895e5a73e7d03727e015e7363465243a555254. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USL4R1937802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e038203a655bf8becaa23185e1186e6da6fe61bb3c7795acdab873d57c9ea19. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USL4R1937803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d93568201f49fd5298909d2584cf96a79c827ff6ca1cdbf666a3984901df717. 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/USL4R1937804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867254ba3a792859d1419346d235d3686536c2553471add1a32112627d882b44. 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/USL4R1937806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939002a45440f4b9188a82d430ddaa383caac0dbc7c16a924c49d6462e1e38bd. 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/USL4R1937807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd427ab3443c02ae8db9171b2a72ad005e961786f7742d5dd2fc1f060ca1ebc. 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/USL4R1937808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9405ea4d8757b04fc3e7f1beda22987b0783dfc8a20075c5d441656ea1b8540. 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/USL4R1937809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88ec4cd6f2ac1add746292761e4851d620036043232d427a41376e29599e1db. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USL4R1937810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bd1093c08f88f95f20b4b36458cb2d5331a6ba882a1e1b686f032a816d97ce. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/USL4R1937811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2235bfd8c74c096b2229ee0d9999c9f0f78d249d9ef85a63fc37575980f6855f. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/USDY42007294.