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 0xb2cb583258e0fcc799c69b57f695ee06862f57f76b97567e1ec413b41dd27687. 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/5528b49f-009d-47db-a79c-9b3cc6894c89.json and https://artists.proofprofile.net/proofs/artist/5528b49f-009d-47db-a79c-9b3cc6894c89.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 0x82d6fe120d4802bc7600bd6fb610f2deca3c9d8f2a5f571bdf8aedb38ec2c718. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/FR59R2016817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e0f1e7524ccfcf1944eec0699e0a59e22ecfe65aa56eba38aea0a9144a87d1. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:56:17Z), 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/FR96X2011540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc826bd4aef3e3ba6640ec6d213084af99e25bdd81553ded274ad8a61cac94bc. 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/SMRUS0066132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46aad827b48344624682e439254b53d91bbecaf016966622de03d2117c35887. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:10:05Z), 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/SMRUS0067863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c111216f1c0da8408ad1107f28bd1699dfc028d1defd12275d8546cf25a0c5. 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/SMRUS0068997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29024323005fde09fad280d02bd1890fcec6773121b2b7bdf460f3ef05113de9. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SMRUS0069660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf3656bbdaa4818604db4985486a2b640e1a9a2eda7f2963707a9746adcd3a8. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:02:44Z), 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/SMRUS0069982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3883ba27fcfbf2f9a933b7a671c481f6880cde9ef3fde8ea2d28c4b4d5e39ec5. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:47:50Z), 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/RUAGT2329959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3883ba27fcfbf2f9a933b7a671c481f6880cde9ef3fde8ea2d28c4b4d5e39ec5. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/RUAGT2329959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1ce039c0d7839fbbcab4ea4d9316027ef8c59639b6e6bdb38a11cd91c4ac41. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/RUA1D2455296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4cb4cba50bcbbee82e1dfcc3eb2212ca9e91e36803e34d7b02237ad49373a53. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:24:03Z), 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/RUA1D2455298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28225b5185eb9fdbf4b28f7cbcfa9e73a2d9725b3334f5679eaf8df0f7f9cb42. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T04:59:57Z), 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/RUA1D2455300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa78c87fd11c592a1756ba9aacc84576c3a955cb021fe0d2f85b5fad10b57ea6. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/RUA1D2455302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe45f6f2698ac6a9d75983e2bca24a5342f500a925a71bb4bc525e65e01eb62. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/RUA1D2455306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5cc00587fe497a9bbbff0b03b46a4b15754767ca7a2d4d8dbfed559c85186f. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/AEA2W2121247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6497989b9dc3cd93860884247eeca3b51ab073d83ca2cd4705d1b9537a3cf0dd. 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/RUAGV2503808.
Beats On a String (feat. Jungle Brothers)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594b85dda418153f70fa12988107602d7ed3f09399bb88859ab378604001b9fe. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBLXN0600010.