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 0xbf36b77fd428280a5f74d37a38f702e5bc1795c49f149e896ce89aba8f571938. 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/5a23e813-ad73-4c8f-a989-0aad0beae42b.json and https://artists.proofprofile.net/proofs/artist/5a23e813-ad73-4c8f-a989-0aad0beae42b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Until Until When Will I Remain Alone (Slowed & Reverb)
Until When Will I Remain Alone (Slowed & Reverb)
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 0x01b5f85f778925d7626a387eaba8a35dd159aae359c971be77be35e764aca554. Chain 2 (Bitcoin): anchored in block 957796 (2026-07-13T03:24:42Z), 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/ESA012521869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2190797c3e7b5e3927e780f0867a0dee3c92ecc0f5b8574fc6340f52f1750c42. 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/ESA012521870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e11a6dd3fef5a210df755709b1789f0ae9efb4414da81da0dbbd7c7c4837886. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:43:19Z), 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/ESA012521873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae47e398dc2b44dbce3fae1ac11bbca847b6c6a8bc00a1abbe14d5cb36bcc83. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/ESA012521868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba9534ef52966ee9eb162ec8e76d5414892605dc59026ee5f44bd2a6d88637f. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/ESA012521867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12353e24a6f091dc24c1c1f3f8a850008fdb8ec430c963ae8ab50d42dfbbdd3c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZNWQ2526795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be3d9cd6042e7f932ff07b28bc3fb1131d22db341d0e18439e0e7a6c5b94e14. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZNWQ2526796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd28e21cd0323c6a60213a3c4f54f8417ee3625bda1341dc823ba3884ea07d0a. 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/QZNWQ2526797.
Until When Will I Remain Alone (Sped Up)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b63282ed74085d25ee17569ce2a1e900f1b9b50452f46da96e2109282d852a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T22:04:09Z), 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/QT3F52584176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc16d810e6adddf2e5af1e2788cfd852e7f1ecbfb32312449e57cefe06bfc5e0. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QT3F52584177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85dca6c6f181cffa33630326c1b27c5c5cb8ee74ef6c92ef25ee8874f7af9e2f. 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/QT3F52584178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc2ea22da86fdab5ee8cf2acbea63cfb105a88a794aebf7f3e897339535fabe. 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/QT3F52584179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d96861c780670c0fd38b113f603d8360c0470465ac47f5b4a1f1e474599b23f. 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/QT3F52584180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb1a02891c7bf263ac37377b987f4f2a7de627fd6e7b863a3879d68342363bf. 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/QT3F52584181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc77ba12cb3dc4c72bbb8c3334d145bc2169992394030a9f71783fe64f8c52e7. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:26:12Z), 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/QT3F52584183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392b52504e3df5d4658268fb0c8e8f7f35e53dbb09df07c16eadd860b19730a6. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:15:19Z), 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/QT3F52584185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a22dd3881e9655de97f31f77854b5474b0d705710f4c92db96796bf2b5dc12b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QT3F52584186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45c70d6d2bbecd661c82b3b63edc84049e56e8b048b559bfd1bd0ba2e9c468c. 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/QT3F52584187.