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 0x53974dc8642577e3380a548b98546dd10390e333255ea056bac3d55f6d64673d. 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/9b35710b-5d79-4e35-a85b-c461b48e5217.json and https://artists.proofprofile.net/proofs/artist/9b35710b-5d79-4e35-a85b-c461b48e5217.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 0x8a6dcaf57038cec97b48504f78f9bc048540368f9ad644dd71542391ece59c5d. 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/USUM71909620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31a8fc7ec0c7417892b125c08ce0d79157c2db329495c857eb117088dc0fb27. 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/QM24S2307554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ebf6e2925ff28377a83f3e5b30aaf3cadb8b6f942192f2ce3ab2f10ec389f5. 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/QM24S2202988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94cbe53169c33b0f730e8fa26ff67a58934dc8b65aa3ec88d713ec80df268f2c. 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/USUG12000528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396dd8a57bd9198bae56c0146eb4e8d3c2bfcd795d5482636ce82a6b121cab41. 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/GBCEN2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8960bba2f28e08f0386a7449478d4f525d846252c87c684c41c7c7bda8818e. 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/GBCEN1900117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc3b7641420bb5a1853e7aa246f97db382f8f5ad35ecfac82c89c9b3b1b6653. 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/GBCEN2000006.
Hard Times (with Robinson) [Not Your Dope Remix]
Hard Times (with Robinson) [Michael Calfan Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867e87209a9746d5cf82e11ff070a6c88f5879bee94056d0dd4f2e0a1518701f. 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/AUBM01900229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc288389c02be76c06b9e0dbb45633761e84870d4548607bfa55505aaf77b7d. 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/GBCEN1900072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e42767c551a97aa53bc6f93f9520de411f7f236aa7d7fdd2d9f3126b45c7fa8. 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/QM6P41931968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde81f89d408fc88736f3ebc4c2a90fa2a0a8c238190a54a5d5dad62b10f5d8e1. 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/QM6N21932048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb82a7a7c0b5a2b34e7ba7d6bf4de23f0c9adfb82c147090d4c4086d5cbba014. 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/GBCEN1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf0e67eb9887e248ff2632d2f18e441c8c8ca5b7c82cb6fa3d130ee490a3918. 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/GBCEN1800182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652ecfa421e8a88e39f8c3e4841653aaefe9095e0ff0ade8f7a50c56bbc29601. 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/GBCEN1800159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2763b784f66e427dc2d2758108e4cb842c76177cee6785bda11ebdab4404fd53. 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/GBCEN1800142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0ae6aa940cf204d705c009edc938e860add696949407ddecd2d686f6c0b6c8. 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/GBCEN1800117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47dace2478ac85ea377adacebf94014b64d30438ea03ec24e661bab08b875572. 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/GBCEN1800081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522600c19181b5a1c3ac530789d0b4b403565fa781982b584bf6406c9e7eae46. 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/NZDY11700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9091e635533368b8b3706d6149de58aec90fa4bc26184b695c35a7905ba59da3. 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/NZDY11700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b315b37de36775475628e99eca58a0485fb908e110f2addaa1905385f91328. 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/USAT22406295.