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 0xdd4145afecb5d908c30862489527de7be7560bdb7b245d9c9c5614cdd7c99d22. 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/ecc7b962-0816-449e-939b-0cf4ea05ac81.json and https://artists.proofprofile.net/proofs/artist/ecc7b962-0816-449e-939b-0cf4ea05ac81.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 0xa1d152c2d28fe7e4f521002fd327bccb196781319b9c4768657e83a675b610d7. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:12:13Z), 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/GBSMU0026859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7d85f8d0df68785a702baeac0b8b3fb470caec94674246671a5172ea666189. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/GBSMU0026910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243cd0fb79593a5eae8e7e4ea69b523c2f6cabdeba1c6c233ee11d907b31d903. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/GBSMU8960493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdacc52469df6cff47624343b711bb8bc20c39957af6bc83b05d1bfb57303345. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBSMU8960497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fc996975e9af9e1f96bb503d28a41c2fba9512035cd9f40d6bc0057bb4672b. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:41:37Z), 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/GBSMU8960550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00d5c309e21bb427175a666ff922ab7ad049d63b6b2e1ba0e0b4170c1114280. 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/GBSMU8960569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962057bed0833ac44064c0c7cc656293fcabff813762159e297f2b903038a849. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBSMU8960614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc484766ec23b3105dfd7fe59b74befd5db3d5979d2876be0aa9ed3761f1d79f0. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBSMU8960633.
Kyle Parker Can't Lose: The Kyle Parker Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c1a52fb49c6b22ba8616aea786c39b6dd7679cc24fba70311774baaca1d257. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:27:12Z), 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/GBSMU9105435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0b007d9e96bd32cc65c8871615c773ba4478a2b9175ed4cc9b7366c9508100. 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/QZMER2215634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef5031cd8714a2b14b3e64d380ad7ee588f61df39cdaa076290f0c29836ae5d. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:22:05Z), 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/QZMER2215635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7cb31126f0d72eec95c1be53eec578e2079fcaf00cb9dc56660b3d7a4678e4c. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZMER2215636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f90dee9c58886791b1b9dfb692b40583ef5e93bd14c52fb1e4d8da84c10716c. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZMER2215637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb125de8a32f7acc3d998eb02d81c15bcb2c926c5f5a4f7ee6e83790c2818012f. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZMER2215638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370391bfd6f25f5a1ddbb6a2b5ee515a62a2d9bc48533853a2b3b0eb6f0239fd. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/QZMER2215639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0475252f812b1dfddc9dababe4094ad2c0dd655a12770f6d5894f2646ef833b5. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZMER2215641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a96b06df6959e726a86320af92a7ac4dbeb1df3b4ee39b773188b2cecc1013. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZWFR2337701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ed600b58fd74b1ac43d54f28d8e772255d6c1e09ecd5a03f6cd741e31a4dd5. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZWFR2337702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd7cf17c0b7d904b3672d5df6d2711408e7265aa65fecfa5f06f1c328243729. 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/QZWFR2337703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f543d710525ff9bc5351bb95ee88c972fb3fda2184406d59926e677befa186. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QZWFR2337704.