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 0x9f471a65f73a6a0f0b201ae2e2683c40efc282f907ef405da6f1500dad90c5ee. 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/b67b14d6-32d5-468c-9993-f21adfbdf1fd.json and https://artists.proofprofile.net/proofs/artist/b67b14d6-32d5-468c-9993-f21adfbdf1fd.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 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 0x7287e6dc9a3f72fc0f376529a23253483accebfd9e80b8ffad13033bd9b91099. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/UST8K1672079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27aaa27ecb8a8452661c88058c4c30b3db91991fca1677861c732da7446d88a. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/UST8K1672080.
This Pain That You're Used to (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219e5db7ac4161beda88fcaa3e3ca3de5e8f1df5fa150f788797aa442928c9c3. 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/QZK6K2096395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21de3fed9736e021771dac9b230aea51be2fe32ea00859147bf012d0a14988b2. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZHN52113370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2c72313345054d0c6851db4098ed50510100bceb0ce303c625c6aadc4fe9bb. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZHNA2168451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cce28f455b9f1163605b920f9dd45e29b8dfc37a97ef16923daf47543cc1d5. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/QZNWR2138816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66f3bdcaa662da761bb1fcd7b432c01a4db6ae61d49340ce5171739934c3a06. 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/QZHN62240429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a7b0b4dc8e1e43b9fb639171c6f1f0f58930e48072cea2279fc72947971ec3. 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/QZK6K2252309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2e25d908e5c0cdc7c164adab408839f0120cf49aa6727f57b50e81b0cc51a6. 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/QZNWS2201369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c16964f3233941e722aeaabc7e560b33d0c596d138c6d918cadcd13aeed221. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZTAX2235157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7823a5a9d7266a4f06fbe28755ee529aaa8682e5ba1209f6347da093173856a. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QZFZ32324580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066faa1a579f6bdd5b9cfc143af268b44e2e91999111f30b633cda8c857fd3ae. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/QZFZ42381598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f17f5129cce3dad5bc80b666b0c87d21d80de3a1af9a31162382239b1605b4. 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/QZWFL2322265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ddd4b71cca65ed85f80a9d9655882fb2d2e74796c7c3c8c86ee56bfab9c2e4. 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/QZES82491569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a0f4ad199ff95d41b6c674e913fbbef6d674461e4cd3619801d2ad2ea38db6. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZHN62425244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3844b9112625e28d60fe47e5a818f7a9c70626813ef2062252b55981e537808b. 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/QZPLS2485959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d78500620eff619e466a10f9c1f9bf84e88d9e9255cb61b5ebc96c2721c63b0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZTB22400777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b35e650829d385344eb1812b7d7ab5435b9dbe7e5a94532d97c010ec1118a0. 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/QZTBB2440046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662a39fcc8cc65d8b21f334dd607b824c81d82371542424c7bc51329b289ef7a. 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/QZZ7L2439940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec874513d5d1658a3c4d3e33e5c523657f600eb848fbe35b942a026e1b687a12. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZZ7T2459720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97af32794fed57c720118d9dd72f589bcd41f2e0d7ecda1583c45c8dfdd151b5. 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/QZES82528518.
Don't Let The Darkness Swallow You Whole
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb17a819ede0110a60ee4276bca9f960b4aa66e49efd5d711afa1788c5c747b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QT3EY2503334.
Your Soul Remixed (Your Soul Goes On Upbeat Mix)
Your Soul Remixed - Your Soul Goes On Upbeat Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec745f7c640d57c5638fd190b780615f1da497d86f7211b273f1822ad7753f78. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QT3F42546823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x145b242c1c4950ae0d7d11d893f6738c87abdd0b5629dcdddfe42c6fa7fcc4c1. 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/QT3FD2558300.