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 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 0x21d68934d03d5b07811b40101cebaf58f32d4b9d7319aaa0e79f93de2d7e4ac2. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e0194704-c7af-4f3a-90ad-97733682d024.json and https://artists.proofprofile.net/proofs/artist/e0194704-c7af-4f3a-90ad-97733682d024.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xf89c7d88a92e860d14e1f74d524d68ffc6de0f3250316949ccd77d8562cc6166. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:11:28Z), 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/QZARB1861240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060df9fb1df9ee78674aa71b7840e6a07dda759593424d79b1100b0693e7ffb7. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:08:36Z), 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/QZARB1861242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14eea498e8799b5e0ea74567098f7f0fd996474580aaa4b27a2a61306cd22d67. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/QZARB1861243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3d8736015da4bd8d2eea5e12caf4b00481a02d8c7d6f217c45c99db9240d79. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/QZARB1861246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee46607fcd91f83c584c73d1c2116adcd308dfcdf81aa489d4cf15f01b7949c. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZARB1861248.
THE K.Rich Project, Vol. 2: Temptations and Testimonies, Pt. 1 (Edited Version)
THE K.Rich Project, VOL. 2: Temptations and Testimonies, Pt. 2 (Edited Version)
The K.Rich Project, Vol. 2: Temptations and Testimonies, Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f46e215de6d320f4200096e9e72a482b13062ae2734fc7d59dd0a571a32217. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZB4J1825583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9520218fee8721472ba6de9e8a332e95b7fd28d5b683e9f45b05d318e1103fe3. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/QZFZ42032879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef08f9d898f9c31058b9726b0b0debb5738929bdaecaa4305503b96060fbf5b. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/QZFZ42032882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9230011461bb4f7be39a119ecf764587fdc36c8b96194744c49a1491c20015. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:26:30Z), 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/QZFZ42032883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a23f91a84596a9cb928903168e67ec962d3a39692c1b541187cfef95f8af76b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZFYX2092334.
THE K.Rich Project, VOL. 2: Temptations and Testimonies, Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93186a5a3a81d2cbbfd419d5f76f111812cc8ab899f272e35ecb74c5f42e4ff. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:37:46Z), 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/QZFZ42038277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73704ac68d9bbd92136a3e1ada19d064d92e71a9826cb5f5765d45d90f4d8ab5. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/QZFZ42038282.