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 0x61ed8a3a1782d470038d871a22f2688753d693a485f0405a52f82c0f3077b2a5. 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/20a9236b-520f-4c0b-bf42-890308cd7e46.json and https://artists.proofprofile.net/proofs/artist/20a9236b-520f-4c0b-bf42-890308cd7e46.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983bc793c99ceaac6d9b198f4855e076e5a7a0f535aa3262d065b46c709e32e7. 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/DEUY42000111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a922baa1e5e534436385f8fdd1d6ae7959e6433d83273a0cd4bc722dc48563c. 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/DEUY42000112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24454a168c501f0f4ecc8d47f3b41d102550a10c0a9b1867aff06c476d99124. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:30:11Z), 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/DEUY42000113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f583736763727169c6f9ac2ee924340300d19d6c9c6948ab0fe65d44f519ad. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/DEUY42100117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1323fda967d304934343d79d3846219314cf535b82fe861cad1e7349e2330a07. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/DEUY42100126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aae4f72ecbf7032e7e56601e68712cf261e0386144925caeebe5c85006c9a98. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/DEUY41900097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01d2b440aab099e6ed1d68a23065210a53efdeecf854a45298c7d805c29d553. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:23:24Z), 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/DEUY42100129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0335b86876fa1228cf7fb4ad39b83b57357476bd5082f8f7a18261436c9390d7. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/DEUY42100132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815f60575be8c6c6282f6c1cf179553a330ddc708e06a4f2b851d889db7df79c. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/DEUY42100133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7797b81ff3f1fa8fd2f66b81a660cdbb771b5ee9b28fc67ddc31f56444bca8dd. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/DEUY41900098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c996df6a7075f4228440b00e69aa9d03395331a0b1cad6a8377858ca6fd672c. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:07:53Z), 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/DEUY42400202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c996df6a7075f4228440b00e69aa9d03395331a0b1cad6a8377858ca6fd672c. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/DEUY42400202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73cc284f34c248e166650cbca66c8d615634be0cf7aea3c34a76afbede78b0d. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/DEUY42500225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69163bdb0197776887246bca929df0f230b9959de6e3bf1ae8f79041db6f4c32. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/DEUY42500226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7885c490a4da1c96b675b33002c179781cbcf3a9fae50f4ca052babcdd11ad51. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEUY42500227.
Mukunda (Jojo Effect & Gardener of Delight Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36b7250661862c8284ba42902b734239df9f371b2f8cfe9ac04e4eae81401e1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEUY41900093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa0bd4e9dc8881e27858d6d21aaf8b43260b4ed43c3ea08fb87c5adb033e7a7. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DEUY41900087.
Chall'O Music Presents Chill Out Experience (by Jean-Marc Challe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e163fffd9a603d732e6fb3f99c248a51665e658a442bc1775b3e50766b8d50. 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/DEUY41600041.