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 0xc798ff1ad80552376f702462b24564a8efc60716c3249c7f183d63f15778266d. 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/4a5f9837-bc2a-449e-8d86-87113aa6834b.json and https://artists.proofprofile.net/proofs/artist/4a5f9837-bc2a-449e-8d86-87113aa6834b.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 0x27d36ba086b09735977cb4815b5464e2b71a836ee22023f7d7019abb97f785ce. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CA5KR2450689.
Ice Ice Baby (Manuel Grandi Ibiza Remix Radio Edit)
Ice Ice Baby - Manuel Grandi Ibiza Remix Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b48dc49670506e8a22752cd122878d44ea560557e012e0b9df4c339a9c7954. 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/DEH742313892.
The Witch Queen of New Orleans (Club Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54720664d51ea7befa07483def18d135bb2b1ff0256f2991317b6a852197f1dd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITDR82300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f30685b3326ac69335369beb3e3e07ae0ba1b5b1ba56c516c5bd7020c95182. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/ITDR82300005.
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 0xa2048f73c3335c1dc65562b013e4ac9c4e9c298cef6f15ff4a99fdacbc7963b6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITDR82200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c9935da897dfc4bdbfd1647e84262108078a9a73f00c05db7f84b5ccb9c3b3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKACT2210626.
Dancin Forever (Manuel Grandi & Lord Loopstation Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4483c4360535ff1fb8a8bb2791bae08378cd6e39cf3bee21111d7cadc56a879b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US83Z2206749.
Young Hearts Run Free (Yvvan Back & Zetaphunk Remix)
Young Hearts Run Free - Yvvan Back, Zetaphunk Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8581527c89eb903476c0bfb4562a167caa4d5e8cbb4cd1fdfa1cdb3bf4ea21. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITDR82100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39b09747c4e4b01c70551a5ff529b2200ed2055dbf9f60255d1a0490a63237e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITDR82100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97fd1fea1fcb4fbf7fd98e42d5ca0010c8f2b71f3b4e50f30d7779b9d7798bac. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/ITDR82100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e20817df6a442cd12b0ba6cc509ed512489e023400f11ce68d7838d250862c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITDR82100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec4e6286c43d740b0fa4d7ce97261def7686b4d84ff7d4cefe6d66d606421e2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITDR82100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1d7849b1015bdc7211ba41622aa5db7e38c2007b409edbcd80ff933de70329. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITDR82500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4988b3667e3cbf3ac2895d368120629a81a22b5ee33f7d24f730257c1e7051. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/ITDR82500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3261df1ab00cbbe9bb616f16a228f854d1cfdb5f8d29392d0c709851b921ab. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITDR81900010.
It’s not right but it’s ok - JL, Yvvan Back , Zetaphunk Silk Radio Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691a701b8d4c36efa038d348c098d0a4ecab01f6feaf835bf79a2f1b2bbee659. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITDR82100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada52e702724c11d92480e439d103766e62131638976f382200bebaea53a3fac. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITDR81900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f5aa58e56d21001b95379293cc521c4bd57b4f931619e77e6730989be036ff. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITDR82000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1a81ddfebb7f3afa95b57cb14a84fdf6ce3f844bec1afa1af02d09f4c99985. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ITDR82100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb919978af4e41c07fbe3beb3b8dfff0d8f24d6c9945f94660c63d50a74190bce. 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/ITDR82300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479d6956be6d0269d5952ddbff27164440d575c0f53768f7447318b8e36a68c2. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/ITDR82300023.