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 0x020c1f20a601f2ed3326f9cc633f058fd4d0b322639c6b42f91edaaf668cf9cd. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a5db925-dabc-4bf4-ae85-77f3fe08d11a.json and https://artists.proofprofile.net/proofs/artist/7a5db925-dabc-4bf4-ae85-77f3fe08d11a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Música Para Pick Up [feat. The Caribbean Ravers]
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 0xff9f27768809d20b3794715eee3e7694dfa09fc3b4851dbfdfcb571bd61ea97b. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/DEAF71629286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e19a68be10e51e9fc377af6bded9fdc2b5aaba2c4b457411f6d87dd3885cda. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEAF71629289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef2cd4ae2155ae89052500c748d3d42ee237bacde9523c6002d5ed287a5fa5c. 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/DEAF71629290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce4cebc3b752b18a98157cbc90a44aed0a577a710dc1d2464bf37f32a7a0914. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:48:33Z), 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/DEAF71629291.
Cumbia Computer - Zeb's Cumbia Reggae Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbc48dd49ba06d50cd6a57c6e7ff429f3407c0f6c07619d8295e45e613a536e. 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/USCCW1210178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c80e97eeeddb3da7d6307724c0372b458e835f2c0e3023b4da1ca7ae3988b4. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/US7VG1103409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ed1c76ce978ed10623ea5c4970f437111f0f458232c5e41d42b7adeea1685f. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/US7VG1103412.
Huele a Mariacacha 2 (La Revancha del Coleto)
La Mariacachafa 2 / La Venganza del Coleto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877f8a4935eae2e03b6fa268f872cb3502c2c4584d0c515cd9479dc6f5e8207b. 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/QZ5AB1619511.
El Pajarito - Ben Matik Instrumental Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54e0cb31e86701f0cdefe955bee973977ae84d5825fa95e1db2745a2c6e0fdf. 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/ITH641902491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1b74051974772f7b6e6deaa0af45038682434f89e965507b54498a1313b925. 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/BK4DA2307050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992ec694eae163b3cb7de519285cd8e6e163607fdc372cbc8d38d4f9ae969ddf. 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/ZZOPM2106891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60be2484826f2229a9afb04e983e8e042de3f3233391c75e8682a11521781705. 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/DEXO81923677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2f3ec87720f48323e58386a89d2a24f7db20201404834784b44c62a8ae7f57. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/PEBQ91721224.
Huele a Mariacachafa (Remix) [feat. Pernett]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b7b84ede659f0939a5c8d258da395152ff5d5c91c168ad0e92d70a289100bf. 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/USDXS1600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ba51e5d17c267b30e12b330536117194b8e0194a4cac5dd0dbef683ce3fb6f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR96X1504758.
Mi Lavandera (Drum & Bass) [feat. Pernett]
Petronica: Petrona Martinez' Electronic Suite, Vol.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e18b6dc36dd707723b4230b486d428093ebdbfddc3b6dfc4791f3c5e56c539. 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/USHM81508338.
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