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 0xb60ea025e7ec78eccb8c723cddc0eaaa865cac1d45096a05e77de1ae41178394. 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/1a3df60a-846c-4f47-a693-c47837e87d30.json and https://artists.proofprofile.net/proofs/artist/1a3df60a-846c-4f47-a693-c47837e87d30.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 0x9ba4242aee7b1222aa61da50d67c0779fe458766e661e135bdcbbe84532e195f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GX38U2130475.
Presentacion II - en vivo en Mambo Bailable
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e06fe7f2e54b86a3069cec192c00df79ffecedb104ec4ad14cb2a943a042b2e. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:35:32Z), 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/GX38U2130477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7571a0e8c5da1a1bce15afa9c2933a1fd2cad2617ea692e8c464517aeadf02e7. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/GX38U2130479.
Si te alejas - en vivo en Mambo Bailable
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5856b4a3095ef55a7401a9e3b5a225e3a02961e733cf7ab94d50c7ef7b919bcb. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GX38U2130480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57087c66cf3c42117ebaec2e3f075bf25e8961442ad12c8a1516f0f3e207c02. 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/GX38U2130481.
Tomare para olvidar - en vivo en Mambo Bailable
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09afb3904fd024c9570d54dba06c67a54f92825da779361c2567d23a16219ff4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GX38U2130482.
Presentacion - en vivo en Mambo Bailable
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ed4790e31097b750a999b5213f2094221a1a35f75f280e33a4b7a23f1399dc. 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/GX38U2130347.
Toda la noche - en vivo en Mambo Bailable
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939194edc185e9ebed201e099f707058f3f3b0a48158b5d6d0a810ccb22e5bd1. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/GX38U2130353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4256f820d795fe1fa08ecdf2e4a69ff524f43fb392a27828502cbcc7c524454. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:57:19Z), 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/GX38U2130357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f974dc2e90050691b1e94889ee3b46e15f60c0291d5fa100a2344f207ce438. 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/GX38U2130378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380d8b2c4ca503c650bf838214bc8d2a3e1fcc3803203047f27cbfb9aabb5ea9. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QM7281567597.
Superbailables de Siempre (Mixed by DJ Red)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fdac7591e9475f5cac6dac180c77d3df19505fcd302bd82b5e3379d04e7835. 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/ARF060902035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b8b47b2a6f25067d0214907bd108ba3cbeb77991636eceaf8338ea37d82836. 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/ARF060602704.
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