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 0x4b480982688b94e123aad585882f3149932b40494e6d6cc9440a0c5f07c060a6. 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/d2a728b6-dd40-4584-a3b8-8bf29fc3c263.json and https://artists.proofprofile.net/proofs/artist/d2a728b6-dd40-4584-a3b8-8bf29fc3c263.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 0xd38c2650a22512338691949db0f4bea3935b0c454970710464c8d8c9b57cf27b. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/BXWRT1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea38ebaabf964c419c680e5722e2fbd887b144de0c238f8cf590e0db7abd768a. 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/BXWRT1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeccd9acdfd359489c75b7046c6582c4746532fe98488d4faea1be2ca27490dd. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:33:47Z), 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/BXWRT1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac8dce4ee199a504ab4967f35deec72de9f787c29a1618f578f8ac8bcfcc66c. 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/BXWRT1700008.
Eloy Polemico no Estúdio Showlivre (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22223dc288de32ddbb721e0af308a7a42d9ecca935bd97be90b86e77a820a93. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/BXWRT2100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43db3ed470dc7ab957babd0337316901a077d87420a9dcdba5950c357095e68d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BXWRT2100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b64bba09aaf7b1363ef637deb0e199b97bfd9358e1131e05635a0227a622203. 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/BXWRT2100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d539fac1c4849f916008824cd8cd23b30a46eb1dbb413ecc7c60add24b7dee1. 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/BXWRT2100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e827a646b5b0d109cbfce45821f9c00d1afd3617652a270f37c7963d17d9bc. 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/BXWRT2100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2a4037abd3e58a7a33f75362fa5e835a8994db0af08d5a0e305155d9901577. 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/BXWRT2100031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37eb0ef42abe2d06318a3168fc921d82e4a2ac04873de3fa20975ebb45d5380d. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/BXWRT2100020.
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 0x33da9e7ffb9d6377d29116834f5460415126f6647a9eaa91803bda465e5dfe44. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BXWRT2100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8556809f837efa28a451cdb387765a10427f95ac6d431a52d08757b2de8cb724. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/BXWRT2100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22cfad7beea9bcb66441d5e3b03cd95a196678b29f0416d266c54c21189d72c2. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/BXWRT2100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da9e2e67cbee28c562d74f60a7a012ef4e6e97938c4e5b6fac5fe1429b91f6e. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/BXWRT2100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901cec987d641b716fead6bf906524dbca43e5a7753d86ca9afc83282dd7a068. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/BXWRT2100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c976c06d26ee28031809b120114c5aea97177a6c5fdc8e3fd75c61c457f617c. 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/BXRKX1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd027ec2d49b49e7d8cf953a10142f7741be87298d8be221b5073a682bcd8caef. 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/BXYGS2100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53eb9d033d6511dc2e9b84f10201aa8fcf339e6e2bbaf3f94d2a58f672409929. 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/BX2972200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7803cebadf0975a0cbc8f3f14cce29b6800b3a43ddabbac582039ca733b9513f. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/BXD2J2100004.