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 0x2e4adfa7b084d26cbf1752b59adcbd8d26139a83acd671a04d3f1f0bec0a7131. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/523f8240-2690-4434-90c5-fd1c571fb919.json and https://artists.proofprofile.net/proofs/artist/523f8240-2690-4434-90c5-fd1c571fb919.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Presenting to You - Rockers Control Apresenta Cristopher Dilovah
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 0xb29fed2852efc7a25a95a1c7dcc1fa6aa90be4c80285d0628905c38d9f86811f. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/BR8Q02100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11539f8400be6553b2d4542210872b816362380604c5b8a0976ea9254e9bed1. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/BR8Q02000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416fab93ef90a9884dc6ef89e583379143e73432e5415980c6d9bdc2371a6007. 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/BR8Q02100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabbc667ac2ae4feb83ce8285297b5305730a076f17b73c043172fac14b3d731f. 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/BR8Q02100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339856e49fbadbff90f35ca2a6ca719a61e5b59e3bda1c8ce8fd027e06968216. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BR8Q02000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23a0b25f70992471b8dff229d7db20259688495e8747111fe9bbaeb1d7c00c7. 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/BR8Q02100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287763cfc4445fd51d6c77f7970e249140d8188958149650156a1745155f97f2. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/BR8Q02100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e2ad9684c3e17d97819ce21da90c59051acae63a1ebcc635bd3a28dc7fa40c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BRDEP2300339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d21876ed7422d1dcf89422b6ddea493057b747c6f1c47bee47114665526cd54. 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/BR8Q02100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197f2568f01811ea987c870993fd88d916c14a9870578673468230fc43c5efa0. 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/BR8Q02200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb74c5743f70e15dd33342b09e093320cd161377ccd6e91fff31a9d3af75f46. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/BR8Q02000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4032b5070457ca7e19d3f4cf3abfd348732f2c729cefd1623f6af3691bbdfc2. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BR8Q01900067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16ece390ed7f967651244db19e5cb1450c14bc7b63bf6f41e597756aa1d09d8. 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/BR8Q02000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d6ffb093c1b4774de8945314a5c43561a5157144599ec5e32179c6ccd3d4a6. 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/BR8Q02000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa358da6d97a0a77695f6192cfda82981f40985520d3ebe0491705d50af9b887. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/BR8Q02000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe644e08600554112aef05050394d4ca4b0c518bab37e5b444d781fae701c6ee6. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/BR8Q02000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9980e0f1e68d6223ea9bef15b5e34ed69c211514fd5ae634c2542f3df62aa907. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/BR8Q02000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73842a48430ad8f61244e6468cba07f03f5816960a4dbbaff54e8fb4a98855e8. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/BR8Q01900033.