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 0x62919c48fb8dbd1d8a8dadd6a6e3aa45a1e787d3f2657c6277f6d1314fce20e0. 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/87561eb5-8f8d-459f-8a85-b5258abba429.json and https://artists.proofprofile.net/proofs/artist/87561eb5-8f8d-459f-8a85-b5258abba429.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 0x4246dc84793451e9e83a06452e912a18f86f39fec320240c1a4fb7a66454da86. 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/TCADD1704916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ea43fa7e05695e8536c5e4a88f46e35382cbb97de7c410bda720a4d556dede. 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/TCADD1704920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4067fb21eea9ed1b83840d8948641c8b926e441cb7859793fbdf7b24db48680. 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/TCADD1704921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f1aad250d9dddad513ba308e5db1cb371db3042f1cb360eac43e62953478fe. 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/TCADD1704923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa740b7270b4d0e775d5b3d98c8f1fa141bbef8fc52e4aa62b14b91c568f21be0. 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/TCADD1704924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85874ed6b4324f994d36076c6a6fedc409b9da6030cd980c9e4db399c720129. 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/TCADD1704925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9688312171d7cec12417753ab7e4af968d3cee00e12a8e2ce7723e7327d0f1b9. 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/TCADD1704926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9b389806f51af3871c89bb96353211730525d818c627a49a7580beb63f980b. 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/TCADD1704927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79af8ba5737df7efe8a3ced28ee937f964665e2c6010c1dc4d665ef52126c941. 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/TCADD1704928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66a23077163964cd9d35fa561017c660a90499dd05e2d5a237cb60a927ad083. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/TCADD1704929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66f6b42a737e82d2311615e5dcdf633912939a5698e3bae2162aa46c74cee76. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/TCADD1704930.
Vibe with Me - Live at Native 92.5fm Studios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1abb1c7a83cc01bdd6adfe8c11fce7067c9d150400f0fc28c7d0647ce6d04a. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/TCADD1704931.
Sunset Tonight - Thumpadelic Dub by Wiley
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09f471c6d4b4df70cc66ee1e87e4cf1e55daa5c149fd314c2aaa4f5680937b5. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/TCADD1704932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fae666361e2dd77b2b8b9790a0acd495a3b94df41e7e3a0ac4049d5bb720b2b. 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/TCAGQ2235977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff7b809c43950b627f728a3c11a6ad0c32a6eff953b29d66c63fb3819359078. 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/TCAFL2112939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88fe2834ea3c822ff2d01f11d004d14290e135c8ff132e89963f181bfdcfc7b. 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/TCADZ1877565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9b389806f51af3871c89bb96353211730525d818c627a49a7580beb63f980b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCADD1704927.
Your Love (Live in San Francisco, NYE 2016)
Your Love - Live in San Francisco, NYE 2016
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28d106b3381b51c7800a1c5fd2c7f780475482238e0619bf910cffae2d497d0. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/TCACN1655133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56d5be171aa4a80d0950cc4232b9a472d0256942a17cbce97b3065316fcd7b9. 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/TCACF1564540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5854f086966f49a7d0e8e7468a832d35ac3d818048a3c5784347c7a745f3c1ab. 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/TCACB1429575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c897b177c682c4950b45748422de17f841c96e0eda3cffb23d74071be2cc31. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USUYG1031726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268c5ec8d223977a97e2ab49b1a41e738d5138a1f8ed323f14ffdfd0ec6c87bd. 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/USUYG1027162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0632877c0f0e962d1050442daae9b153d6476397c1b3f1edd3049190bcd716. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USY282316092.