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 0x3d42b12b8016bd6abafa532595fb8b191c64af8623d9b442da149cf2b73537ce. 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/5c568e5f-90e1-4a58-b99e-7f7b906b793f.json and https://artists.proofprofile.net/proofs/artist/5c568e5f-90e1-4a58-b99e-7f7b906b793f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
You Have to Make the Money to Buy a Ticket
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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 0x72f381076c188f35c0afb9471f71ed99455f3ac3ac193c2c787ef38eb0c8848f. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/UKXN22570521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cba3cb67c02d10d1a6d4c5d060a8a88408345d7ca5b36acc797fa7f818718e1. 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/UKXN22597870.
Navaril Derevenskogo Samogona (Hardstyle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d410e97b22526cca52c2aed89fab97a951961d5b5466d93723c4e4bd6d55a59. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/GX53U2583910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62904ab50bb180bdf32e7c9c36343cae13ac882e74fdab40e8cde69440edd22. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/GX53U2583911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b3ac7dca9e7bcb373d5d97b0ac4478654be9d83612d97b6e91930b2ad8fe66. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GXH2J2509787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794fde7426208795f8e2d6f17abb82b51037981139e79b3bab2d091688ba5377. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/GXH2J2509788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae3ec64f22cb31b146cbf2aa63b967dd14a5dae9bdcd6214bbd720d91e687c2. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/GXH2J2537515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b4451d6d5d6ab34f89643fe95e9e8391c428113fb85a637bddc4eb2d7786ef. 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/GXHAF2517099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd65ed2fe652682baf53d35c0226debfef628b9776e9d8e7ebbb1eaae8b5e52. 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/GXHAF2517098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0566d7b076974fdc0e19f392393e398eb1f9bf3eadff97759dc2ff05dea31eb1. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/GXHAF2532488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46036ca6cdf63efb2c2cf854592eca71fbbf3be876c5ca4a93a19658be3b324. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/GXHAF2568261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3338f17c7f459f455f71790f263e15cee67b668067e4d4896410f50abac3fef5. 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/GXHAF2568262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd537fe1075436854e61443a0149e2e21a3b089e00329e11668392a514065dd3. 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/GXHG92507001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70058aa25a1addc9e2cdc5264976869e3b22659d6e5de7357c4614adfb5f0831. 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/GXHG92507002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfb531eb646aef506c7302f0ab0bce711e84c81da70fd0fd7f615fddb2f7f49. 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/GXHND2509198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf409c0c407dd457b0d6e067b2edaf4c3af173420c8f12af9aa6ca80891c1610. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/GX53U2618774.