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 0xa797086de238ed491708cb372e3ac1dbab5f28de54d3ec1fc0061b99be0ab73d. 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/280d13b7-7007-4b1e-8289-28a874e6de87.json and https://artists.proofprofile.net/proofs/artist/280d13b7-7007-4b1e-8289-28a874e6de87.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 0x6f8e7c7dd68b5c908b882759011883bf67c1085284ee6790399bf1f8999b6c48. 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/GX8LE2320986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef38b6e733d4ac7bd855dbd469e0a0133f070a9079a4521062ca19ebcfac54f9. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:45:16Z), 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/GX38U2391189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73959ef4d4de1bc451532ada4db5290e178db2bef3620665283fd7b20c5c918c. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:28:38Z), 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/GX3HH2386361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5ca05fe85d7181dcb1bd7e769e4cdc37d700de4705a2a0e4b94245e5b9f216. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GX5MX2396937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8544b0eb5a2cd2bc340f1cd8d1d2c06353291db5cb0c4bdf1076ef4a8281b9. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:48:35Z), 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/GX8KD2497066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd902d8a4a7e6e8d3dac92ba9da0240a2ec5f6a21848b2e89e3a16366546bfd. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GXESV2461629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72836daa9a507e4a2369df4f667625cee262d58267340cf2c2a5d3bda2f935a7. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/GXESV2439432.
Lean your head on my shoulder (Slowed and Reverbed)
Lean your head on my shoulder - Slowed and Reverbed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a51c405b54aa8f8f0ad9b3a9f9acf13c77fdfd9e7671b5d3c16ef1e4008b995. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/GXESV2468596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe443a51dc305a76069d42486668083c675cdbcfdc7193f48d555408ce8bd293a. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/GX5MY2551076.