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 0x40e6892fb27b813b2c6da79993d9092d238878dd3093e57ea4fc393a1a967b63. 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/dcd8b73e-f39a-4dc3-9f08-567525086463.json and https://artists.proofprofile.net/proofs/artist/dcd8b73e-f39a-4dc3-9f08-567525086463.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 0x197b802ce6c0af4aac1bf6380d8eb42a74ab2359a3151d46f13e2412ad48600f. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEBE70800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a628fbd3893a4d66b91f8cf6c76548f05b2f002deb3567ddfc06e0f7b85ae8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEBE70800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8f8ee87abc7fbe7d7b2b01af6f8479bb654584cde362ef10c2f2f2d1fcffae. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEBE70800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbd68b5328cf4254c9de6ad53a5c1b9e4dc5eafcf2d191ef84a4f4fdd056b70. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEBE70800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7765e5ae417f6a5fd09055677161bc0e2774d6831839aa07a300b5430d15ecd9. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/DEBE71100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52692c36022a0ba732dce2c5228de0f6a8519589da6ed5d9f62911779dfdedc5. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/DEBE71100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994729d279687ec1256f8bb040aeaae538a52061c64f3484ea23c3d9bfd9a9d6. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEBE71100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a64a6205941a34b9fb1c55047cc0e0e6891543b162c2dad25a7b8f7d4f0e66. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FR2T01500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7603a107831ef6e2494c4823daab45cfd4bc24545e68a4cffba51e894fef81cc. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/FR2T01500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f368df5c7b4a34351f6acc9b365eac437388d1e68d6b30e00c340d165ed4d5b. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:46:33Z), 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/FR2T01500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360d682a824e4a42be445f0a1dfb53ee927a691891f2cae2dec3417661db747a. 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/FR2T01500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea545ef0b2d87865bfb90a9e44521fad9ffd127e319c9154c50916938af4b88e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBCEL0900222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe065868b409df3b25b4fae4cd6e107b856801ecf7625c69f197b4cd864685327. 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/FR2T01600021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e092bb9ab93991ac1b61ee264eb9ceddc3984283fbd4484acece04a8154e295. 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/FRP211200150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46fb41c5fed4b220f03d156d0be7652a407e6f6c89682390ce9e2bf839e20ffd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR2T00900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb256b52ec40b44a598e1ddb2973e95fa2abdf1d817111f66525aa92fd88334. 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/DEEC60800053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85186aae488f8368c3a6c40d3e997b979183a8d551af97eb4508458483adb274. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T20:48:28Z), 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/FR2T01600018.
Reincarnations - The remix chapter 2001 - 2009
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b6e7a0eb16fc0437288827dbab343762ad244218bb948b49e654338ab9e41b. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/DEBE70800058.
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 0x6642c216d4875cb7f1626acd238307c0b747b364a3ab0f6b304758923fd25001. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEBE71100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66eba657497c9fc6e176cf9f204ae317a70f95aa959be5ccb98a1de2db5604c. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/FR2T00900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca06866c6f065e467e0a96c6e64700463ae7eb567fa6d055b0c1b7c91f5d27d6. 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/FR4GL1113506.