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 0x81fd03b14fa8db2c45fbca88f61902afe9ed9ddd69857bc2c9541aa1bb319e10. 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/0aad4df8-6ac8-4bf4-8b31-36a0f3a51e44.json and https://artists.proofprofile.net/proofs/artist/0aad4df8-6ac8-4bf4-8b31-36a0f3a51e44.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Peppe Citarella Essential "AfroLatinHouse" 2022
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 0xbbc59c3f4016a1d7935d6e6276464bfca480f98a8f3c7d2f9a4bc786740af9ae. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITLCJ2100341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb658f916204f6caedb52a94711d68dca955a4cb6982e0bb1d4bb04e9e144e0f. 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/ITLCJ2100369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e38e846bd1905d321097ee3d7c180fa082f0396b6612ada1b4fba2f7e59ff65. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITLCJ2100169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f89d2164ca338b42fcb06016c723dae4be0b9a00a75d07419b4166b76924fe. 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/ITLCJ2100342.
Juanito Alimaña - Radio Edit Tribute Mix 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a79437b7c2fb0b0eabcdae5596b55150ecf29253d3b6350c77896c4d56e1e9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITLCJ2100344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f5a4f33205c55680d154415d127df38ca91324a29f8cc001ca0871c07848ef. 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/ITLCJ2100373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334c80af669e9d3c05634564cf26f9eaed3ffdff2620428972b1ae88fccff08d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITLCJ2100343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45b3baee99fb2fbe309ea6ed3ce393a27f23f3b1df3b20b061359afbda3595c. 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/ITLCJ2100385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f12ccd0ee9e33249a4e43ffd044bb858bbcb8c2771b2bb1de5a05976d1baa8. 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/ITLCJ2100347.
RODE OVIE - Radio Edit Mijangos Afro Soul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d21c50432b5ede10863680b4b606bd77f5be2a60fc72071ec3ba2c099f1786c. 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/ITLCJ2100349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ab598c774fa3e7a81c5126b8022021b10165d861d7d2abe3f92c94de15a444. 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/ITLCJ2100265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe007a655ccfb9be53f569eb77a82c63d3ae6c92534a576aa2c10850102918d04. 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/ITLCJ2100351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aef5c281cb2a3df4ef0adc1ae48179bd35559bdd405007a40d853bcac8e3944. 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/ITLCJ2100352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf11cb144c3c700d51f5856cb5c58981054dd83f41f0a7a2f625e53e3b03ae5. 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/ITLCJ2100356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf10117555b56576d43a02950a27bab2260ede47896d4719cc222f076873eed9b. 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/ITLCJ2100358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7fccfd31a2a0de539a1fa2cada01ee5c343019dc3cf998d1a894b9a086342a. 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/ITLCJ2100367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015f10a79000ee5eab3650d47f62b672d0e0e0f601d817ab67536a7f268f9616. 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/ITLCJ2100363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac051f35da5b1fbf3c527009b8a2e4e536f108c8a00daba89af64e07a5ed9af7. 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/ITLCJ2100364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fc56e7ec33399b2a9cd6a1edaa2decb1302fc48343651429524e0fc14ccf7a. 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/ITLCJ2100365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a52c3d3f3131b4d2231fd4abf2a5df9e3f9cf9825dffc91eb1a323ba7b69a4. 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/ITLCJ2100371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a87945297a4f7ce09a45bb991578ed5b0fca51b4520a05bc80ede69ca02dfcc. 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/ITLCJ2100380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd32ef93498b8ff6c1f37d8c3ce1ef69b078a880d531c39a41bcfaad75df0083. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITLCJ2100237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46bbf7021eddd6150b204860b3c544722e61062023097f46b227e207e6bcda2. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/ITLCJ2100374.
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 0x53bfab319c6c8443e873930476ae6f2ea9bd31e4ba08dae14c2c3561e20a353f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ITLCJ2100346.
Candela - Radio Edit Mijangos & Peppe Citarella Afro Latin Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861706ffb5940caf192536797df8fc2accee1ecbc2da4bd01c52a55372871e4a. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/ITLCJ2100360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafde6464bb3d1be2e49ff97d5a2f723e22d932dc40277fa6694c6def9c10175b. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/ITLCJ2100370.
Essential AfroLatinHouse 2022 - Continuous Dj Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989868e523c2b481123273d370cd8af37b2f16e3dc4971a7e5e59d900655761c. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/ITLCJ2100382.