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 0x93fa11f4203a148df83e2646144eb1af8baec472922669e7a40de26bb073fc8e. 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/7111ce90-d7b2-44de-9239-dfd56f5533b4.json and https://artists.proofprofile.net/proofs/artist/7111ce90-d7b2-44de-9239-dfd56f5533b4.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 0xd1c7ffb04bdfac584055d20a809cb7fbe4c847b1bfd9d51cbe3eddaf76262a5d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:33:11Z), 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/BRE1K2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fca55cc4359622ae8c1cb0e3540b4a4ca89d58caff8db57735804335014ecb. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BRE1K2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1356d4f6f17bcd4cf0cddcb9e7e0e1811db8769ae21828f7ee3890000e42047e. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:31:50Z), 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/BRE1K2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd972a7307ed8d1aeed227a286cefa2f5d682e66e63945568a3e07bd62cb410. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BRE1K2200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4108daba73aa8b5e5d803c67f825123c61ba9b1ef1f51b4757e72e28944797c. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/BRE1K2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a7789885ce638007cacf8592ba2b3bcea0ddaf980265eed7b49e76e6ead582. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BRE1K2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b440212d037b1c8f06bafd05c389a3aaf12b0b7f67984d5fa2ee75c7b1ef968. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/BRWMB0000941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908e4d076b1c61f4b21295b029bd12485137747a75f5b6602ddcfd85dba605f7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BRWMB0000943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x411c45f427f54df256de27fa57c22a8fe78125b62314428b6947db956b6d7fe3. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BRWMB0000944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ed7179fc093bb58b2b61accc60cd9caeef7e47b955e6970f002afacb9bb5f0. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:42:07Z), 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/BRWMB0000946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0850a92fa9f3cb36db6366e60de493b23eefa15595a60214981974b9c0154f. 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/BRWMB0000950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24532fa9c978e8434a41d63d93b6f7ec95fdb9f30b4128007864996f2b2b29c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BRWMB0000951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02c2f04976563ee88d237bc13d26685e0da3da41db2bfb2a165c51b7f6a2ec1. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/BRWMB0000953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb19f4ea81d9d217ac23bcab91e6da462b6e1021895f8930394c968758e4611. 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/BRE1K2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f0843c51e1130b6caac68d48747035a6c7067c16043a419d12da034cd6ff23. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:09:24Z), 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/BRE1K2500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9ee512559e85045a3f665917ff783e8fdcac83a91fe07b6012a6f47c40a5d5. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BRE1K2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ada59464906f19211f2287a9ffd44f662eb87ddfdb004df90b3acd436abd9a8. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:37:36Z), 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/BRE1K2500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5a06fff768ac674970b91d7514659b61cc069aaa1ae55c2463df017a34707a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/BRE1K1300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03496e75a5491d3b27756a232d8cfd0c79df101939dfe2652067c75280527c0f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRE1K1300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c305ce503b8e451e96e85df005761187c891fca9138c16428e9e04ffdfb25d. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:50:51Z), 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/BRE1K1300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33424e4c0e1819065a234c64bde07f47ab712f5b482e62f765090eed29d7e7b. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/BRE1K1300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd579fa861f7c3414d3d5992472072e070f23f740ff1616b4b0e3c3f2f3317d4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/BRE1K1300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c4973f9cda34f240ce36c24b2de5d401b3b1584664e0c95f0f506712fb5096. 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/BRE1K1300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107556867b926a821c3b273cc2c2c03ba2fe8af240a54732493d2ee526099635. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BRE1K1300021.
20 Anos - Acústico no Theatro São Pedro (Ao Vivo)