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 0x69dfbff5055ddc8d6515b7de0807770a2b8125cac5bda7e729cc20ccf15cb873. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc2bff45-c2fc-4dc8-bf54-aec53a5bfe80.json and https://artists.proofprofile.net/proofs/artist/dc2bff45-c2fc-4dc8-bf54-aec53a5bfe80.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 0x265c0637132c11c2e62357ace1e3b03962afe12daceec4c85679145bec09bcae. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T05:36:10Z), 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/USDHM2112339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6775a0e01e6c6c746ac5ba563874d094a31c361ac956d1088d47b0dcc93d0d7f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USDHM2112341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecee50d2fd7aa975b5dfb2c5a1d20a6591c633de7de404c84c225199bfba441. 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/USDHM2028479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63fd5dce0a016a29bc6504078388028d3010fbc37225a5581e5836bfa9346a21. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USDHM2028482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c716c71dfdc0ceb0f35f18bcce1b6184d22f06de3b5ae2b74c00eaebc70520. 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/USDHM2028484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d3e8f36717696de29c795938549c54f30e70c68907da9070bfcbc146845ba8. 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/USDHM2210266.
Worship For Young Kids, Vol. 2 (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c0139e02d9533a65803baa4fd79d4f2d7709381f8d5e81c2b54bdeb104e02b. 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/USDHM2309830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07653ba2bf7a67fac13a9c4d98607b9427b2b0f41eebf034d71863623a603ad0. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:10:06Z), 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/USDHM2309831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d0d2c561c2a480599400f52385363982b4cc8afb9521a5ce6f36772591b328. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USDHM2309869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7750791dc5aefa60f00baa62e71110f245244ba2d5f9f49ebc3cb2ecbb464004. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/QZWFH2499017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e04eb26ccb70d723ea551bf8cc2cf5ae6ac05d18ebc0c4ff98a81bd91b4e73e. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T22:55:41Z), 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/QZWFH2499018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fa9c022fd25e09892901323d84f12a13428912cf07f5f30bcf8be193c8e663. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:47:28Z), 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/QZWFH2499022.