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 0x6f071d313b927d3c4f162f4f65bce801f57bc6093f37f69895e819a8bb148ef6. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4eda49c-6283-4d2f-a621-c47c9492a2ab.json and https://artists.proofprofile.net/proofs/artist/c4eda49c-6283-4d2f-a621-c47c9492a2ab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Saetas a Nuestro Padre Jesús Cautivo en su Soledad
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 0x8957859745bf1d700c024042b05606aabb0d8109e249d05206ad962e362974b1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GX4R52455276.
Soleá, dame la mano (Original Booktrailer Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6115e9f99bbd5a57d508ce2385679dd2db4244cefbd18da13ae820f1127ac3dd. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GX5MX2452281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc21f44cd46d95134bf60d868e1bee8c3ba00619204edcd4015a9179070b12c5. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GX5MX2461054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf00be8385157791f77a687c5f8ddb88b846cd2e11960be51036e58242fde4f. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:11:03Z), 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/GX5MX2453298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b045471207a45a98db5d9c98c5ee8a3f46fceee885fc20d65b5cbca04dfb58. 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/GXBDS2424866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42d27d19c1c2e7ccc3a62a8a8d67b719f4e3df7d50e6c2f34c89314cd9c3222. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:47:27Z), 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/GX5MX2401954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703024acaa14ec23fe5d89f22708855cbe556870fb72ca87ae0a7f239f24413c. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/GX5MX2422420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c531c90ffddb159a68de99cbed979a7b3923b61ff35be102883af7bffd2382c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GX5MX2469694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ca312fce6e3f878d18f21e3243b98e33ff90702ac6f00414d198ff36d44fb4. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/GX5MX2470616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea05557a5185608aa70745af30b683ee99384910ea58237c3974dd01b91d4a40. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GX5MX2484005.