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 0x849baeca0f952f8554b1587deddaf691bf1575cab027745bb4b5db0b444e4ff6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db8d327f-ce98-44a8-bf34-55f15d6f735f.json and https://artists.proofprofile.net/proofs/artist/db8d327f-ce98-44a8-bf34-55f15d6f735f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Morocha (Bailando Latino Three, Product of Hit Mania)
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 0x80ac45a621aa0b9853964f54d3c033f7f47212eb863e451b0d00742d5a7dfb45. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR6V82478012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced02f23f8e88a65f57d14e56e6a901feea3224c4692b7d7fb1714b0e113aaf7. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/ITV081500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8069a4c679509c936a00e45a0ae9f35c926e2863a7fa8912a91a30cb48d8c0. 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/ITC942114497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e62497beb040b4917f86bfc65d1e52bd3a80b947bef04235eb1c89cd11147a9. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/ITFZY2500384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04bfa88ee92493051a2a65b24859a2639f1ce0551be1196eac12f75036da2ab. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/ITFZY2500397.
Latin Power Compilation (Caribbean Beat, Electro Merengue, Bachata, Salsa, Dance Latino, Timbaton, Salsa pop, Salsaton, Bachata Pop, Salsatango, Cha Cha, Bolero Bachata, Kizomba)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2a56717c955482e9e7e02bf5a43859dba3516db5d2ff1f85a63c5cd36fa0bb. 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/ITV081200036.
Salsa It Compilation, Vol. 10 (Gold Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9260fe66d1ed963b6d2947c2e25d5d76303e7938b26c64e60bc601952eb7f3c0. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ITR191300291.
Salsa It Compilation, Vol. 20 (Platinum Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38165f2a01a81e35624ae4b758dc9912f71ffd5e88b6800ced9aced96fa80fc3. 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/ITFZY2400375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7022090eba72b202e0ef05b1e79e1ae2eb260d7aa339f8129d94fcc1f4669e32. 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/ITV081400086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ff1d3c3f5c8854fd862de3779c448f333faa1a683f660024b07720a73d33cc. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:56:39Z), 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/ITFZY2400370.
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