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 0x1e88165f714d34085ac8920ae538069743fc9c58b68db0e7905b8ad56304b339. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/93dfaf24-e7ca-44dd-87eb-b921e8a24878.json and https://artists.proofprofile.net/proofs/artist/93dfaf24-e7ca-44dd-87eb-b921e8a24878.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Midnight Jazz Espresso: Late Night Lounge
Jazz Café Diaries: Storytelling Through Smooth Melodies
Brunch & Jazz: Sunday Morning Lounge Ambiance
Jazz Espresso Shots: Energizing Tunes for Café Lovers
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 0xbdac848f4d7f100393c816f9bff8a4ea6bb58e6c359f9f7c82fb1f299a9c939c. 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/PL52J2165254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706e8420f82c0b05a94664f55ff27efefd2def963f03c5b906acf6e5a2a420ee. 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/PL52J2165245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6873d4c6d27667d8dbc6da99cf14ee4cfb7f634318287709cb78c01846f5dde. 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/PL52J2165256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05fef21c530b7c56f7bf469cc584db92367bc09a13133d5448e051d38c0c9e70. 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/PL52J2165255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba75c870a8951a6ed351740aa6309f421ca4b54a0bcbf01332c59c5b39bcc0a. 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/PL52J2165248.
Paws & Jazz Serenity: Coffee Lounge Harmony
Urban Jazz Elegance: Coffee Lounge Serenades
Sophistication Echoes: Redefining Jazz Piano