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 0x751f5e9161afcdd591a3d2bae0118de78d7a99393c43aa7f33786158b3ff8475. 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/5a27ee80-05f2-42c2-89ed-23ea4cc76bf5.json and https://artists.proofprofile.net/proofs/artist/5a27ee80-05f2-42c2-89ed-23ea4cc76bf5.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 0xf9caebe5d8a11a0e631f7f1e7613e1475b5cd3c3974137987d4d31f126beb4ac. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/GBSMU6933259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3303b13bf32c54035353ab5a929742967b327543e97106683afa56812a93881. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/GBSMU6933267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c5ae1810c5014176cbf06dcfa6e8ec2abb0ebadf355c2b8c0c1cb69d35e877. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/GBSMU6933269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa035691e4285761e71262818bfd5d9474ab803edcee8300fbda5f0a795999054. 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/GBSMU6933272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01bc30177c291df37adec25fe5a3844065582d97656233a2568d89a14baf2789. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/GBSMU2472658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43583036905021d7935e576db623b9f073bb7247ef6586e1ca1ecf24003a11c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBSMU2472660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfa99dccd5200cd0b2ce100b7788a97b86dbce23b8746ba3d54b418b1364226. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/GBSMU2472662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f6d69bf8dfa352e47a0c39d319b7beb0bc7ec8ae0536fea7f530c102a1825e. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/GBSMU2510330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33573b46ee69846c8d0d362e18a5611955dd3e87ee5781e54bd87e03a2d6b6e0. 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/GBSMU2472696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae326ff9ed283be7feb1f6262c038546be9c6270124a010243de5cbbc653d839. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/GBSMU2472716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0b656afe5c440ee3fdc8a14ec971aa99d20a855bc873dd38ba0be047f204e9. 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/GBSMU2472750.
Stylin' With Ease (Isaac Chambers Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882d60c24e8e962a360b4b554155a221877ec143d87e144ad76baccdc546a522. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/GBSMU2472842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b14153f524a85315a7eba90a2e6eca23a6013ea0c0009bc36bbf835369ff7b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBSMU2470968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94fdeb78634357819d90cbf6b690993d40caa39466fb2dd708a4a5a47790a75f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBSMU2470970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e57d5c16e16ab2f0d4b03d4f43d224160644b35bdccd8290aa28dce40765861. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBSMU2470987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff31b3e766d375b05e629ee8a4a3758630bd122cf47f3dc98df95cd262388bf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBSMU2471004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1677e03036f07944535fe56660765c38febe0e053d739388595eddf86647419a. 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/GBSMU2474984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03ed8aa241da6cd910379ea29c0281077622644474832989b03dc89b5e304ec. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/GBSMU2474986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdcf0a4841724c68e8affc535671bcc0472e9b0cfff6cc249db959a8d14cf2c. 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/GBSMU2474992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ef79b38318f83484a80239b4631b51838bf9269e1357302b6bf4d5b8ac5361. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/GBSMU2472852.
Organic Fairtrade Trim Decaf Latte With 3 Sugars
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589f4860c2f5ac1ffa20b87570ef7b3dfd3a6a7148aec7a44cbb5ca943ca56f7. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/GBSMU2472854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff3c4a05ea80ffcb46a10a812991b3f5017cee8e8a626d2fed28105ad68804c. 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/GBSMU2472856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05edbaae755a908384eefbaa0c2a879b6786883fed6c28ad7d2345fbd6c92a73. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/GBSMU2472860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036a1038559dbd3a1f0e849a187b7cc3ebf519da27f83f53f55557e563dccf11. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/GBSMU2473244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210718fa98f390945a5eb85c52228e6ed6ab9ccd93ca04bc6a32d4e50ddf9491. 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/UKACT1616407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e5b47535e31a5b2461bd96f1abeafcc74845f6915ca28eff6311beb9e57f1e. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/GBSMU4349627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d7fa6771b79919c204596e4cde5a70906802148b322e76bc28815513533070. 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/GBSMU4349628.
La Vibra Que Sana - Isaac Chambers Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41de20ce6dda2766f3d70b876974d9d272b50dd35f843e4a0f954cf80c9390c. 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/SE6QE2220562.
Back to My Roots - Deep Fried Dub - Roots Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12ad05da96552d8b342a4be6f99cadf0647293f346a35fe46d99c5426e434736. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USA2P2022801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbaf43fda447ce3fa1ae674f1fe81aff5b256adb3a4bebe5509319271eeac016. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USA2P2022803.
Back to My Roots - Deep Fried Dub - Dub Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732207d8028259494777a4c4d5dcc5d7f75af3cdf03fa2eb4d12fe87bc40e266. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USA2P2022802.
Kryptology - Isaac Chambers Instrumental Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89c64176bb4e726830a53043083fd325412921edc2dbd2ca8bf2907fbdc2d03. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USA2P2022804.
Back to My Roots - Deep Fried Dub's Refried Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54a214afe4e2b65dd1523737ec34213dc89539890a88cbac583de0f6d3e046b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USA2P2005058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566457dd8b6401f5bb1d2c2ce219930c26cd6250ddad1f979687ccecff79ebf7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA2P1665450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2e9e3dd2375bcb232e3d81a3ed39d57ae6b4e703172cd8aa2965c561d21640. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBSMU2471019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe588c830ff058c693a219657930ce6da4b0e7d19850df2e978d54c049c1e5bc9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBSMU2471024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9299032d128fc1772cf0dc07cfc24ac0f99c3f76da15f5b7c9e0fd8a018ea3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBSMU2471058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854b10340f4f1bbc8cf9f87dfefd21a51cb17bf25a8cb3a85abd3cacbc6889a3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBSMU7065889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9e1b598c9cd070d337065deb6b38d97a7cb4834bb784441a8f192d98ff4592. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AULKH1600003.
La Vibra Que Sana (Isaac Chambers Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41de20ce6dda2766f3d70b876974d9d272b50dd35f843e4a0f954cf80c9390c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE6QE2220562.