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 0xa32d08e474e917b9a78fec16e47e674f37985988c1b9746d7edb676e346e3f7e. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5e255d6a-52ec-4492-8d97-d7867d15d42c.json and https://artists.proofprofile.net/proofs/artist/5e255d6a-52ec-4492-8d97-d7867d15d42c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hector Olmo Y Orquesta Al Compas De Cristo
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 0x664cebbe0ef2e1e1c31a8cd3cdadc118c17f887696e41050eb6a7dfb07fae503. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QMUCK1350514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9baa39212907af4d731f77f7879663520c009561994f97dbd2a9b4a852fa2be4. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/USDY41675405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c600f14aac278797a99711dd98334100ee32fbd8539de806e956540b93e2e96. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/USDY41675407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb5ec232b61e0834975aebfa66eac5b3591cd764a94f02310739838b14b3089. 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/USDY41675408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87d6bf022e303ec77de2659945ff102b15d8d2f239cfc0932a8aee8d3ea5330. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USDY41675409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821bae81e5e602f8fecf2d31bceebaef9e7461320c30f9f2e9f19257a3eb9f44. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/USCGH1890753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8184b43ad14ff28a018bd8d197774c911c7db8ddf68a72c65471893ca0c28b63. 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/USCGJ1943134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cfe6d55a48f8f095b42bbe5bbc0cd0c49345470b38153ae3ceb8c960365a6e9. 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/USCGJ2011348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a6ac6dbac01d036fa9b4212115f2e78e100d22628f2e4a2e5eea6b5f7d689e. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/USCGJ2063924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15470d53e7375742a28cd56ad8a216c3e8b82e8a46594670f7e25d0fff3dcf8. 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/QZHNA2087516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b91ac110ffd74a2e8cd3dd695fa933599ac3c065f505b0f58564ba7473e78f. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/USCGJ2174036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4e11dae0939864316436094f2629443ef76fa3b4a4b97f582bb9e6866f9b7f. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/USHM92197765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34b2cc890b20d949aedc004b563a5693302f2fc00be84468f1ecd879e2ddcb8. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/USCGH2315070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7fee95c72101494779f89acffc863d8f2b632c9e0eb3aec689c912c06e80adf. 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/USCGH2448533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d33b27ac55c90fd3588c54db3284fcb2fbf85ddfa494e52793c18470181ebf8. 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/USCGH2448534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f545f807414531244a79cb541b0a714154b31e5001cb73007ecc3249e7d515. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USX9P2496479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa084017e111ea286e8736380547275152bd56a5a2d3dc65983f9a372134b10fd. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/USHM22529646.