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 0xa4825dd28b4acaa157cef6fd666ffa8e99e482c549cb274953506b82df20cb67. 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/f384338c-7c9f-43a4-9d6a-959a6f2cc1a9.json and https://artists.proofprofile.net/proofs/artist/f384338c-7c9f-43a4-9d6a-959a6f2cc1a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Touched By The Crimson King (Remasters 2019)
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 0x23f41c8dd08c4144275f6cccf52d15462288bfc3ed6befa1ec0bb4fcf3335eb1. 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/GBDHC1908009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ae9191dfbd7ec4badc71a00a7effe1f389b9a9524dbd6a6ee8b738a5b7e8c4. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GBDHC1908010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd4a829acaa07fb2a175cdd8472e4031bc22364000141d113309f62aae1b24c. 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/GBDHC1908012.
Touched By The Crimson King (Remasters 2019) [Deluxe Edition]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5cd05bf0631618e7fdd5bbe84f78ad25257597496bd1adc16f622119ce4845b. 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/GBDHC1908101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1823b13d21c7f9f0f560ec181aa8fe69cc2cd1ab32ba1d135ec706d0f78a4c1. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBDHC1908102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b87afff0f12e342680914fd54c4c485416d48348d5e1e734abb41d754d873d. 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/GBDHC1908103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06542f7b65a137489335bb5999bd76d521b0d0de1878c59e188b42e96e8187ea. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/GBDHC1908104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219ba74ce3970c56f63adad06c14e7a79dcab7fc6fc319f4d6a89485b9de0854. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/GBDHC1908105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7fb2d7f71ac1879f952978009cc75c8ad477b3de2e1a55186bc3fb0ab60b91. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/GBDHC1908106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859bdc017fc44ca7113cb9b7f785f342588a65bc855fb145acf35c78de987e91. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/GBDHC1908108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ab3147850dd37e78bf21da5a11266f18275e2a450aa8b627b0b8367ff24920. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBDHC1908109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b4b2eab69179b8fa802df11a615b1e71dd48f268f7f3bee212283b3e18ed10. 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/GBDHC1908111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc988f2df0ade69aa324f55d7d30ab88a35b3357f0fdb3eae39fe8e8d994e13d2. 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/GBDHC1908112.
Wicked Witch - Slow Version - Remaster 2019
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f2278d974725cced9e8a098f1aad7bdbc40afe46bd101f425b6f76cdf9212d. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/GBDHC1908113.
Demons & Wizards (Remasters 2019) [Deluxe Edition]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6076f02e9709749b1ea1827d8f4d69bf93e3e95ab69d7e4e9ade038c74f85c1. 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/GBDHC1908001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb1946c34f28ef56bf8bc89aa7003ee016d546ab6c9a1c6051637724b515f00. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/GBDHC1908002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302fd6083644d080356f37e0dc98c6efe046ebf1d04f418523147f73e1ac4f7d. 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/GBDHC1908003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cf04098ef9db6817e4ee0d37d2434ee27ea6d63ca3e1bd61c0516e13e4c4ff. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/GBDHC1908004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb439d1d0d4b3dd98ea44086101c416aaacf44fdad5aefb5a368ee395778a18. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBDHC1908005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d14e1408303e76e0c5927a82b1871a88037b03547347a73a534af747e436a85. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/GBDHC1908006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf8ad38b1e3d5dc41c904ae600270cbff434548266b9639802d7466975fed88. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBDHC1908007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680161adba08ced39f3f4acc79aab0463f137f234e846cd4b98c39dd7f5c4400. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/GBDHC1908008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f41c8dd08c4144275f6cccf52d15462288bfc3ed6befa1ec0bb4fcf3335eb1. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/GBDHC1908009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ae9191dfbd7ec4badc71a00a7effe1f389b9a9524dbd6a6ee8b738a5b7e8c4. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/GBDHC1908010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7db29654a496ff58fe6a24355ae18826738bd8da5e1a187982d2371cc504809. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBDHC1908011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb592bc42f41a58b007de631b94ec8db7ac7d1b65391ca8ed88ddd98751494396. 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/GBDHC2013406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04639e99dd3691a400f29d2653c5dde7247add5ec3aeaba245440913c767f56. 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/GBDHC2013407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542904751298aca4648dd45f3655b78c3f377ae9d0be35759324ad8e582d02a2. 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/GBDHC2013408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d07ed07a2cd7d65401d67393ec0820ce06639b4770d27a4187ee15f206d9dd. 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/GBDHC2013409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc691a1fc7460bcbd80700284a6eda351d3c592c7d76df338c03c283ebf02034c. 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/GBDHC2013410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e8a1132ee0c98e9fc7ccbca638646e259c3c034de7f54a6a457d61d206d026. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/GBDHC2013411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc3be1d0f852cbc5e8790d98528e8ff2727ad328fa233c0d6dcc337065a7c73. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBDHC2013401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf25ec01eeab9f38d8cc8951a66e459f941bb8692e738a2a98c495142679542. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GBDHC2013402.