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 0xf9ddd516603e2ac49f7b740c063d0931f98226f14bd7fa7ebe8c1eac433c4f6d. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a39d392f-efb6-4c00-9271-7d6224b0a9f8.json and https://artists.proofprofile.net/proofs/artist/a39d392f-efb6-4c00-9271-7d6224b0a9f8.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 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 0x519ff9ad9ebf8d954b394d6f8dd9066aa41be338f6d331981050b62c5c6112da. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/JPG691300062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2e01117b03180fb85f8d996e30e7b1a10453be0303725a2567b9ee1d2f323d. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/JPG691300063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed8c284a3ff8f959b1d25855439c27332e00677ec74168ce7c9531cc4838907. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/JPG691300066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf92e3fa924dfe1bfbac0172bbe89facc9a9bf98d82e93eaa8ed7f43ab0436f9f. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/JPG691300067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb600579816cbd2cf508ecce7f51b9e65f4c00ad7e90455b3f3c4eb26cb48a5a3. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/JPG691300068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b65d7435a937eba364339b4c5b391573b8fd9d4456057bd8ce27b16871cc94. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPG691300070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c00e856d521b8ec89c8ca0c0837a16ea25bc6355055bc0454a64b65bbcbe97d. 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/JPG691300071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56889ba4f337c1339c686d8ee146f8c79228ef0c9e26393b7fe2c6e69d205c01. 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/JPG691300072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737300eaa4db7bb418b24e4844fa975309698eb497180ef7c42d8639b80d92df. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/JPG691300073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea4cd5e74156a06f6a537de86617a48c02f70b00499b184c8d80f5a986661a2. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/JPG691300074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b97efb38c7908725057f31d0cf319edbecbba8d4222c2a7987d4b40b475a90. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPG691300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21841e065415d678c3080aec9fa5171d3ba6369372577167a702d618a71bf8e. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/JPG691300076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1099fd44bb2e115e5b7450b9af5b2743912d022be83a083f807ebe1339ff87. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPG691300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc6dc90cac8d2498ff0fe3986bfee5bcf0a6c7ca5dece61d0fb796686375292. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/JPG691300078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac17600352f112a93d27942aba3291c81f45c2bd8c19d22557835c6ebb13ae8. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/JPG691300079.
O My Love Sweet Love b/w Memories Can't Be Broken
Laugh Now, Cry Later: Chicano Lowrider Oldies 1959-1973
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe203fa98b0294c8df94b2147caec69c855084ff5087bab0d6544dacdd552b94c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USA2P1956099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec539df593aec70d5f0eef94435175362105d137e81166656c008323ad04515. 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/GBBHN0501814.