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 0x5eebcb7bd4ae43447bf4a7cb39b47ba4137d187449ee4649bab97e0277e3c337. 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/178034f7-aa06-4675-8b2d-34a82f7ed860.json and https://artists.proofprofile.net/proofs/artist/178034f7-aa06-4675-8b2d-34a82f7ed860.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 0xd9967e6dd23b8fe936cb254d66d3aa1be3d7d6a8c24dfccaa108a940a7d0ebf1. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZHN62530510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f0012d430375c8fef9bc77ef270864673d88a90bc4c7daa2d75e9629d9ed9d. 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/QZHN62530511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f454c1a3fcddaad6ce0a73186ce2b645c4d091dab92ca0a7b0600bd912c99e. 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/QZHN62530512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa97cb2c18a76825c36ed561f68849d3f8ef74f962d9074b7f365f751c65fb61. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHN92572071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8cc412294c87251b47bd9370254b154329415122acf05bee9f5869e8fbbe3e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHN92572072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58fa8bdea39cbc728bdd8cae2cbdb958aae7ad8ae59d4f2cbc062f6469a92f8. 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/QZHN92572073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932b4be2624d6b464a118549bd9ae2bc0b7f37f36f68a6975cb59ad321bb984d. 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/QZHN92572075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720ace2910c9b8ed2d8af756fe56a69e5a7eb694e1e0fb759fdb8e48651c912c. 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/QZHN92589521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e53774caa412397b8545e0f7ea6272c5a9ee0d7e0992772df43f9988a9f7055. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:03:52Z), 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/QZHN92589522.
En honor a los caballos de la Republica Dominicana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f3999a0733e7a6201c7aeea9b8f09c4225975093d2be018fd8a5d3d2853fef. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZHNC2599012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfca6dcb856a9cb5305704d5b0b38bdd2ba4a661cb62ac84ca918468d1004170. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:35:34Z), 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/QZK6Q2592246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb2cddebdabad0bbba31831afc58d00eeebcbf6e06b907f86f3258a501bfaea. 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/QZK6Q2592248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1b37e2ef6d40abb5dffc6541de24a8a5fd3386636af965bc501a282b6f0405. 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/QZK6Q2592249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe43d7241b256d90c4d0393934bfe3ab3e2cb8f1e316368047df5cce1521dd70. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZK6Q2592250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa56b56b40c8ebd0052066b298cd100e31274f47eadb507adfa8988ac138619. 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/QZK6M2567198.
Baladas romanticas dedicada a las madres