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 0xff890ba4c42f5dc3d5ab98252931fa17cc1ab962c45a0163c9d46e70d4c312dd. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e08e1b51-5f17-4559-969e-b43eddbdb345.json and https://artists.proofprofile.net/proofs/artist/e08e1b51-5f17-4559-969e-b43eddbdb345.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 0xe0cf93c46c81bd2e2fa9d46f0b01c3ae52f7accce824049c2063ba9a1e48d674. 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/KRZ291934998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286132f1893da6688faabaf300c8625facf5e7fcedc77879b8ace1c9f6eb44ab. 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/KRZ291934999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3ed96b20cb5fcd47f4ab4f4550ac473ff562d98ce491f3d96d4e7b64c77377. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/KRZ291935046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983166b4f891a9e76eeabc1875bde8632d521ac2404b3cc4b06bc35350f02d92. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/KRZ291935048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5900c5143820b34e7d43ebf3ee7c08349e00ace7c82f436c5c56befb36aeab46. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/KRF632402384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2648092b506abb2c339dbd487ab65124612a89c6e16ac196688c3bfdddd81ddf. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/UK6821705916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1639b458325d1a085081071cc90db0e632d525c1e57178c10facf9db7c8336. 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/UK6821705917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0556af972c6da1775fed21a3377da8a5309da404a0da4a612c8b02f97a2ef579. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/UK6821705925.
ATBOs Seoul, Pt. 4 (Christmas 2016 Christmas Remake)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d5807c1004d14a5f40e8cb261be9a1cd68a538ff33e5b2999e845960e747cb. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/UK6821719317.
ATBOs Piano-Hymnals for Jesus, the Precious
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c91d2f213b9e83e0fe7e227e2f7e0e38fe8bcf45ad2d20cab1112e25a6b52c0. 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/UK6821719311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d5807c1004d14a5f40e8cb261be9a1cd68a538ff33e5b2999e845960e747cb. 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/UK6821719317.
일천번제 스페인어 "Clama a mi(feat. Ana, Gabriel)"
ATBOs Choral_David’s Prayer of Give Thanks