1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x8d8a53299ace6a271191be475d7526dd8ca5c8570d6c1e3e21606c9104916cb9. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40428d5a-f83e-4e76-a92e-98252a83941e.json and https://artists.proofprofile.net/proofs/artist/40428d5a-f83e-4e76-a92e-98252a83941e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Al Natural (Compositions for Mandolin and Bandolas of Venezuela)
Nostalgia (Mandolin and Bandolas of Venezuela)
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 → block OTSBitcoinBlock must exist at that height 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 0x26d012ef6b93c6d5687b4ac75848bba913db545958a3e96a711ce92489ccb00b. 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/GBMJG2107355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072a5ca369476b1092302548febf2d88af695e30691e3046c5efbb77601f72cb. 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/GBMJG2107357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6df61d095cc663318cb5eadd3dbb81b2d2188de7155bce5da76abaa074f2661. 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/GBMJG2107358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f53ed0fd8e8524c821c0812c9d024fa864aa0660b9cb77eca34351a8036e2d9. 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/GBMJG2107364.
Vou vivendo (I'm getting on): Vou Vivendo (I'm getting on)
Retablillo de Navidad: Retabillo de Navidad
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb442663fe887bdbc25e9c240fedc68c364e3726ba053f0855b2a4d43189727d3. 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/ARZ021203901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212848be8ffe5cf7dd102a9b1a7b761509c2c2e67ded56b37a0e08f5e8de532f. 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/ARZ021203904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee03d9c42813867fc194ac9adbeced9387c6a29cd447470aca0014137b1f8af. 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/FR6V81910920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe542a4dc3120ecc293a44fab0ca2b42a35a7642cace4aff5fd045f38837a8b0f. 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/FR6V81910922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128b8be16a1c2da4f47348f9bb1d8e79b6ef3391bb3681cde057abc8d4f7f083. 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/FR6V81910927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14fb72e85b8b484055ccc70a0fe351d2ac170488ad78802d0fbe12b5a7e5a02. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR6V81910929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f031b076450528dac301e5fef7fe10084431407a2a5cc5cba23d7b66caee8d. 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/FR6V81910931.