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 0xbb151cbb23632a6ba6d37c69cebca90316ea4fb5fb0e2f1d268734ed7bda10b7. 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/64b70365-feb7-4b81-8adc-77747d7b7000.json and https://artists.proofprofile.net/proofs/artist/64b70365-feb7-4b81-8adc-77747d7b7000.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 0x0c120faffd170251e2abd54538c113a2384e2fbb8eb4cce2b1f18b2f9601b663. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/CH7812196808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5806cf033053efe4557f34877f6054196714dc833cddb08b7204c2125eabca7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/CH7812196811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6d18c1962faabca2fc1e7ec7dfcd5c5e6eb503619e844fc391fec765f8622d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/CH7812196812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe483e484a00d2c717adce980dfbdce735358b0feb8c29e4e9601c6aae1ef38ee. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/CH7812196813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bde5ef6c69420b0fbeceaeeb99b186331c4d1e8d0a1d48894effd1a16000a83. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/CH7812196815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c608b3553df8532c65b5c8f74643812c1386eb36bececd675588ac47acd44c. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/CH7812196816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf90bb23e35b4493965988e51d069b422c44990dd13750aa169d0bff25b7fe2f. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:01:08Z), 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/CH7812196817.
100% of You Will Sleep, Relax and Tingle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b11c9c02c47d1724d82664e418d4a4b5dd615dff05210dadb7b8b302c8d7d15. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:10:16Z), 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/CH7812109599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a7c96885c1e9fab98ab40aa46399c39ea646ce491fd5f80a5bf6b18efe8e1a. 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/CH7812109605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e18d8e5b99fab78696eee77f6fd56e0177d45f34712d55ca56e723274c7bf2. 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/CH7812220375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4183adfb8be27b13429f397ace1b3e1846548355e160d1ef80870395db6261f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CH7812220376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46300d1f4712d85f6299754cc976fa780197a7d815b90357a1e3dc988172b3f5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/CH7812220379.