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 0x8e90f1131e2b5cf2dfae0ef7fffa3bbc029a5d917d9362ce907f34069220d1c8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c542e967-2297-4472-b560-d0b137d705c2.json and https://artists.proofprofile.net/proofs/artist/c542e967-2297-4472-b560-d0b137d705c2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
He Regresado A Mi Pueblo (Visité A Mi Padre)
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 0xf8bff23f3a07da3abfeeb32451e509a2c8dec4f89fe972c4710ae64080af97db. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:19:53Z), 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/ARBJ62300264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e1fc2262e4f9522e5528ec495023fb1a443a3aaf5fac85cf0152ee99893690. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/ARBJ62300265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394c7740e2cd4e796f0c3efa40a96c5180b72d9258c28162e9a5f3e7cd1a17ba. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:16:08Z), 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/ARBJ62300266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d49ffa74cf7d0c6b4db3b1ebe58950f516864815f577b831a62d76f5b782aa. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:33:31Z), 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/ARBJ62300269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d01b1ad87833e573f02fe5798abee8b5c85a19e2bfbf7b6305c2ac574c6865. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ARBJ62300270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e62a9e8d1de4cd86e2062c2ffab233d78f7f87b2a1320929d175e186e93f62. 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/ARBJ62300271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b85aed311d664cd0dbaa4a2cdfc10aa0bb1bad14b81889d0058370247f03f76. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ARBJ62300272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff269f26764866ca80961473528d48638477e925a00c1ec74a347777105d4a5. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/ARBJ62300274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00471deb62775d939e2e68cc5da3526feb3d2355a021b3b2edb2eadfac5bedbc. 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/ARBJ62300275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149476526cca102796f478c80401c7d67f04530fca13ae304754915c6b41626d. 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/ARBJ62300352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc4523171e728c1b92ecb3e5a3ac29959ef03403d526a1fa92eb86a037daa26. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ARBJ62300354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90178381437d8f636709f4ce6fbe6e2d255f8ba91d7261b14298bee1fbba8e1a. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:47:57Z), 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/ARBJ62300356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429afed7c3c5c9f40ecd05f1f964b56fd1449b50af7d33e570717b4a8be6dab5. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/ARBJ62300360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7258db47e9700a16f3bcf4b771b943288e2d9839b85ecf2661be3a4679c5f486. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ARBJ62300252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475aeb0593591d60e04231a54be30a91d58089b5b977a74b3246b7c84b2fd45b. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/ARBJ62300253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49469ab9299fa8b1451706451de683e8e4d365b171a25afcc7db3147028312c1. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/ARBJ62300255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12aaeccd79f8dac764834dfaeb7a9e83bdd1da496a44be28025c54974d39eba1. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ARBJ62300257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf737e43f966b3e58acae52b3b38f1f3aa817a9fea1f073b1e43f26ac5ba344. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ARBJ62300259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19349037193ca8b166a701aad65050db82a9a5d9bce45172ed7a4399ed21e041. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ARBJ62300261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8581f861099e71d35e73e494c3b2c97243fcb97a554e7d1bd44e4680a0da7480. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ARBJ62300263.