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 0xf6777f239154f75cdcadd3f3a38c7304fa70c0bb3bdbb17e9a24ab71273e2b36. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d23067c9-511b-4bcc-863d-c07cbc008c8f.json and https://artists.proofprofile.net/proofs/artist/d23067c9-511b-4bcc-863d-c07cbc008c8f.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 0x17fda7c1618a64768cb12610d56f19d40c4eca5a113599c1626c66a6246b690d. 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/QZF8N2150478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970087c7fcd888c78043486c29c2b6ddcd7a18e331e919553c80a26ea7b642a2. 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/QZMEV2167038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b2a6f339d03cb6a6cc34d07c1f83cabc2f04fc95d54dd6026cc87d1edd9900. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZLL92300273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5178ae980f46fa82f0633058d60b68fa19496085925ae402d453f2d1fff24ec2. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/QZLL92300274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33aad7754d91b302bd66efc5fd58050540fa4fce5a7d63ef81e22454a7b5c793. 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/QZLL92300275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf061b82ee3b919fe68d3a1a56998061a398c8f72099a237bdb9c2e407e6ca7. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZNMX2267668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13005339d3cd54121aac8f030d59e00dd5c89c885015ad5b96e499c86270f90a. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZNN22356413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c071786d38560e83cc5e34fbc9c75674b06e6e28290328c96dcb26dbc84526. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/QZL382411010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a01e22812850ef8d9ddd39d3420b0439f2bdb7b4a90ad6358e3f83449e6d46. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZLL92480830.
Melted Ice Cream (feat. Trent the HOOLiGAN)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08667ceab6c2309bc22527128989f92fceb74973410b4bf252e592a4d6260fda. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZLL92480831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf227d5bafe97679c01672de2980045cf1edcdb6cd287aedd07c0fd627c621ee8. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QZLL92480832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fccb902f8ed7b72cb4e7276552accecd71f3075fdfa56e6b781965e4692efde. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USLD91761435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfaeba9d2f6ade2a94c3ac2991edac6506ebbbf63c4cfabfb3c017db43d3c5c4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USLD91763737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fccb902f8ed7b72cb4e7276552accecd71f3075fdfa56e6b781965e4692efde. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USLD91761435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3875a25fece587d3a3ca07746be7e13a070687ef987e136214dc56d2cc6d42f4. 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/USLD91764441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad58e7227e6be559dc1d563a47b13f719dbf1e5f432c2dfcce86a0afc7680c68. 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/USLD91764442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf0b0ae8f8fbd62f479b888e3d3ffb4f8a7a5bbfc7fa6b0fc5f5a00d27b6a4a. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/USLD91764443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1afab07c39f99b5f8395fb01ea22cea8ef99e71c5fad6fc9ab9805e3918291e. 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/USLD91764444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542b739588d8139daf68128a24f81e25b483d8d9db77d3d5569159bd4b128f9c. 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/USLD91769153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf40e857dfc1c5030a6f0c0d5792654d8b3046f3e690f2df80c930e9d80b1acb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USLD91783430.