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 0x1790402d045ad22553e4c91eaeac349d42fadf4606fad95dac3bbbd1eac30057. 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/e865812d-2d6e-420a-90ee-1137227e783b.json and https://artists.proofprofile.net/proofs/artist/e865812d-2d6e-420a-90ee-1137227e783b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Boson De Higgs (Re-jazz at La Cantina de Chalmun)
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 0xa739f30d6e1c402dd677b6ea7d3554882081856118d59f8baa103f63bf002c83. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZNWS2179667.
nobody is born to be alone (Extented Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50034847b4307466e44e35fa183e1f80eb53adde5fe2511d1c4941ce51be92b1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZHN62380049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12072bd6405c3c07e38ec3fefd628894b19f99e0656b2dbb253da1a569e9c74d. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZPLR2347013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a13ed05ac150f8c6321a263c903b4695519ba3e7e8a7e1ffc1eabfb6e61426. 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/GB8KE2401076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3fbdb0dd256f55fb72b619c19fd5e1d59fb2f337adacbb58f4b4d245b4ac78. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBKQU2394609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62dd668d91413a27ae680893a30dd1bc9670c74b24825c5cd6d9223595b8748c. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/GB8KE2328414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d3dc66c4a8fa80832654e3eed5f8dc728936b410a9ca89c26bc5d24b5bf09c. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZK6M2443070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd25a42e13d71b22162a9635b5c786a35448cf16568e421d1e576f20ad9268879. 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/QZTAW2434434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49b578c02fe172b4bc518bf31401e71f2ac152c4a6ebe0ad118544d90d72e64. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZTBB2403088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94363ae0dc1975ba9cb5ec1807f6405a3a329ba42f64e103a38278f6c8e8ce0. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/GB8KE2505706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fdbd365856e5e34d2c837235dc9153343f933280ba2829a75c511f7b2fb7e00. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GB8KE2503249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14e0a5fc8ea778643397062ede06e729bac2e35e0995679d696cfcb6482e0e1. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/GB8KE2428235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad3586c73b5f3fe14153964c333b88373f109a88e5e70e053184377d118a24b. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/GB8KE2515091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7550a603ae9ef4324e8f131351c4f92ec15434dbf9db6ef23f2c8d346106e256. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FR10S1904229.
Nymphony Records Compilation Vol. 9 (House)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5a4e90de503cdca6daf82e8fa06f0232423c3cf1897e84de3094d07a74449f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FRX282075023.