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 0xdf20db0bec5778e19ca915f0fde757761861dbae36e2abeeadda1848fd1c977f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f40e289d-4b07-438a-8fb4-aba3285c3e73.json and https://artists.proofprofile.net/proofs/artist/f40e289d-4b07-438a-8fb4-aba3285c3e73.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 0x46185e2909f3b05316d662f9a84a557b3817639385da5ac75cc86863d7a1d859. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBGXD2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4944b3e4536b4dd1c704c8117face041378e56f6e0ccbc2cf1924147b66e60. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GBGXD2000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1800dac412f7854088d4db7b672962dd5371d028fb65fed02456b6bad19ec019. 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/GBGXD2100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e42ab2e0151226e54c86cb1954d9d7dadd84bd0b055dbef23f501b151e8e3d. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T04:49:42Z), 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/GBGXD2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae2304ade0952285b07381b34494efa589db9031fa7de79cc32e7c1b88b203f. Chain 2 (Bitcoin): anchored in block 957676 (2026-07-12T08:20:25Z), 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/QZQAY2243419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1800dac412f7854088d4db7b672962dd5371d028fb65fed02456b6bad19ec019. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBGXD2100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6966ebc14a007ac4f07ee9b251b2a157c3303d2d0fae5bb24653553e3aa3dee. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZS7J2263979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6bb13734405192d384e493c180e45eb3afad13d61de70d540dd2b20695a64d. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/TCAGQ2252887.
Lost in the Moment (Acoustic) [Live from Studio Three]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a89971a1b2e77b8d8b2b85ef8e694bd6e10b85df2927e30f0d83bb1d57c54f. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/UK9AV2302183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c455f4a33198496c03b6251106f5825a49367619866d765e87c57fdf8a09fd. 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/UK9AV2302184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdcc84429ccd74bd0fe0fe9af5f19872191e750f42a5f3d300d893ecb4527d49. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:47:09Z), 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/UK9AV2302186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d30046874b2d29d03edd25a0209de9dea8316663970e22195d7773c8c2f1e1e. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/UK9AV2302187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e2bbe3d577a642ebeeba0a59fb793a7a95a1aac36838a922ef771be462956d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:21:39Z), 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/UK9AV2302188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42ca46b98c97ec6a56dc5ac99bebec3f2dc6a98c8aa9da1c4374f54feec14b3. 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/UK9AV2302189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6447753db0d8131b45b84567c7c58f04f283cc0314afec23a73d19ec5e85e26c. 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/UK9AV2302190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b84da1a9fa1afe165a6807dff01398d09ce49584d1a395be12bfaed9b92bd9f. 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/UK9AV2302191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c0009834eb5ba40a478d9ba4c2f94ead24d21ecd722a48188b61da0c85192f. 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/TCAHH2363238.
Lost in the Moment (An Abbey Road Live Session)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab93d40dc4fa5982476bfd202db70ecadef7b74a519b44179a05ecdc2c8b89a1. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T03:48:27Z), 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/UK9AV2400054.