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 0x3c9e06d6dd8348bd9cadd7ae170ebe7ce73ff70a8e3da29fbdad67a832490c4f. 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/641178c9-aac4-4ba7-a6dd-1dbb5368fa15.json and https://artists.proofprofile.net/proofs/artist/641178c9-aac4-4ba7-a6dd-1dbb5368fa15.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 0xf9cc23fa255bcc6601a835c5550da65d2d90774e168d85d3b95808f73dbc7d20. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/GBMA22028205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0421f28b7a837255048d6e52bf747669c6f259383d94d2f6a9532abcdb219850. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/UKXN22067151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab8c9a53c1d17bc37e2a1dae60ebc87f4d45d15d10cf39e6e6702a2c8ff46bc. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/UKXN21978658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13cec72528e08399db1872e6c6798305e27a40eb21ce5e0c9cecf6bec5ba791f. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GB2DY2100663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b8a9c056c5c730ada693fde50e148e5a200b492eb49b103b97b94c7521e237. 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/FRX762135970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbbfbd2fb197ce81360c7637241bf74591d9dc922a666430631016a47370552. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/GB2DY2100890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85f9129a389ce39b1f00c156b9b6931f2ac0fd56dd6a42c309c58b41bba0f73. 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/UKXN22205516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb88675dec30c669f4f646385f18edbbb0aa7b28690e1c2e92546e7406773aa. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/GB2DY2200947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18182045c7f116675b0b7ba63ac7f3a5bd865e9a22d5e4ccd8acd4bb37a617f. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/UKXN22303176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2839611570f8a41d6afa78242ea6ee2ea525d53ce1ff9a6fba5ac578db29768f. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/UKXN22329137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a2222ce618ebc8ab4a801e2029491ee43334392cd3fd98a42d30ea2a42e3a4. 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/UKXN22372243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612b3e9dc10eff49998a3c24127b2d0a18db50ff3a58866a4e0e87f4e53a1f28. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/GBMA22305181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe040834d254fe1bdfb25598d0843cf077b0c863e5fc2895b773826463f062d44. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/USA2P2473670.
Cristale x TeeZandos x Fumez The Engineer - Plugged In
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcd48c2d89f03248d03f53dbd81252160c5170157d7ab951f64d14c6a869e38. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SGB502345244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b1239981979513ffda104c3635ec803a9f8d7b95ca0854ec2135ea3070f0b8. 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/US23A1554361.
Shawty (feat. Ms Banks, Ivorian Doll & TeeZandos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff24127acde2db6c9f05d1e27a6f36dcf7e390908cc7b52c76e793721be4cdd8. 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/GBARL2202507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36589eca42bc1236756f3344b23a848f4100585835ebb5df76292b5e3fb3bf55. 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/UKVJ52005002.