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 0x6595c7d548581210bc3b4e6ce4558b61a079287ef32e591f791aacdc9200a9f7. 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/02f9cdeb-640d-4462-9afd-486e5241838c.json and https://artists.proofprofile.net/proofs/artist/02f9cdeb-640d-4462-9afd-486e5241838c.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 0x211cbb28446afec9a19ab5852f92820ddea4939b456a8e07bba8b81a3873aaef. 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/USHR21710905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4708230259826fab2c170c5134ba05543e9a842e13994fef37f271cdfc5525a2. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/USHR21710910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897f79daae6e905756f9e280bda106931179486649d70e13ac4f65a82e5c7fa0. 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/USHR21710909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3596346ff607a5522aa202194fd1e0c95012bb23915ad86a6ce948397ec5962c. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/USHR21710913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d583c00b18069192ca1ac595c40f3abee1c7a0ef4495493121a3859e0b3ae0. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USHR21710906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d1b5476dea4b402336db12c39d1bb3db94223b8e7d57a2bf1b5afa9ad62145. 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/USHR21710911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aeaca5d8eab988f5e464606f519c145a833c02772571c1796910acdd60eb67a. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USHR21710907.
8:51 AM (Saturday Morning Congestion Blues)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1868dd5f27cdfb1ee4cbac7cc6415a74698a2375b9df8f953a2f6f1869a8fc04. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/USHR21710908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1351d9f4434fb38168b877adac70fd82a57aeed73d2fdbcb14a71c1cc04233f. 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/USHR21710917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28970b91ae7f8116651624da5256efb2d30acc0f06324dd714c5b6032e46e7f. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:22:48Z), 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/USHR21810901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754b4486824945fb0ef95746255cd9c1cc688ecf38050ce833cb0f48dadb6a6d. 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/USHR21810902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5961dc0fd85c3767bbd6e56e764c9682b8191e4ae28240587f3934755aa4c019. 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/USHR21910904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x317f9458f168fc2d4d2c52cc58be6b448fa4032758e4aea9bd3bf24f6b402c7e. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/USHR21910905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9437f2d73d7be36061d99ac7ea1d1989e006b756e73c5f7518652381206e640. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USHR21910906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afd08f6b3645a1b3944366ee6c60f50601aed60d403d94b17d5d6f5d54a943d. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/USHR21910909.
Carhartts & Converse (feat. Mark Hoppus)
Carhartts & Converse (feat. Mark Hoppus) [Clean Version]
That Pretty Shade of Purple Making Dirty Circles in the Parking Lot