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 0x6d18c70e31a324bf828f34353393a8d7a1ac304777025f65b660516e1e1b5da5. 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/48dd3d35-377a-438c-92bc-81b6ccf5cc51.json and https://artists.proofprofile.net/proofs/artist/48dd3d35-377a-438c-92bc-81b6ccf5cc51.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 0x8743dd89081d43c33fc13bc738f7ebba340ec234a9854ae299da814f256ac6cd. 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/ITS781700993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ca436e2aebee8b5b35fa4ef35327b68cf1b3f49724794a134b2b49ad9c0785. 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/ITS781701921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb4058dbe8463b97312559f9f5249ec2d11ee04552559307edeac88fdf44642. 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/ITS781701923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa8031cb37eeefe6a49c9808da97784b1b78a2b8765202521abc72399a46660. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ITS781701924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066a15886ddfa596e60d81c1d8c3ded8dcf6a04f14f066a2b01bde89d4f4628b. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/ITS781701925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7547f0e335f3eeb7aa0d8dffa5965f050ccf4640eb94555f19accfc06f51247b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ITS781701926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x272764e66a75da506c507c81091a672159f82cb433424679f20700ac4dbcd72f. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/ITS782000144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bdf2772b5db4d6e6d24e017776db6939dd93d775031e2aa3beadc0d65a0e13d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/ITS781800594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8442562070a187bfdc2b057663a6795f7f059f5bf563a5607ddd3a8fa50988bf. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ITS781901320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b81cc3049daa52155964efd9fa3901ed8311e0f31d537a2562ea53b09a6e0b6. 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/ITS781901280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef644c0ea8ad3f02041f0eb25957dfd4c7bc092eabfe707f9c80be48ef586fd. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:24:28Z), 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/ITS781901319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4add13c749fa5211172b000a8a9445e616eb209784bde9c1168086c0eae1a77d. 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/ITS781900956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65251381d254177256d61267e9ff7f772048c43e172863066229212e4a0e9220. 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/ITS782000580.
Rainbow in the Clouds (Lofi Chill Beats)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c63c9b63e0468457ff46b7135a08244e03a65cda317c99f3d46da0b990e817b. 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/ITS782300384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed555450e1a5a85314d9e551d2db2ed243239c2e06f1d6d8ff1c2e57f0ba67c. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/ITS782300637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde24cbbc4b37e299b4726a478393d4dc22a6581cd0e4c2df72b23ecdcda99ab. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/ITS782400315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcccbcc7420a72c207ec64648d3de935495d1e5d45645cf9c5052957043ff62d9. 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/ITS782400316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb30a9baa18ad749ebad12b6b3216bd0cfa3d18a38854bd457e5b12c5026a4b4. 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/ITS782400510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8dd44b6c2048d98842830421e3a0d0ed920a21beb0599c669a7f701538e7eb. Chain 2 (Bitcoin): anchored in block 957622 (2026-07-11T22:55:42Z), 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/ITS782400929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978a60b7315c36d41ad0543f4bb8264b2437c0d94a53bc88637a600a5b0c26ac. 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/ITS782401176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172e603dbbada7557afa43044717de4901d14544ffadc40a9fe73eb43d37cafd. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:48:27Z), 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/ITS782401305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7def03524c7d7386183663ee17b6d214eb85e0b4c80ca38ef034fb5bd65a226d. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/ITS782401370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4b9e97513ebfa99a51fb1db4959d1898d3ee90df156ab42565ada15d686b44. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:28:27Z), 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/ITS782401562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeef6c129564b0cd30c09e3e0b2b54818b5a95ddaa8539631a535a6e9418b8bf. 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/ITS782401803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5530b1c876dbac440f339bd81acec1c561168343783b883bd66f345807145e18. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ITS782401886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c2e1a79d65857e93885b2c11352b0a3a9ff7a2f2380b4a08b7a84790bb8b2e. 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/ITS782402033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3052bdfc2dd9810e503c29cabc4bfb75937495c85900d2043971a4be0485a0. 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/ITS782402098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84ec90e29058c405e3a6b809018e614b4eb3d581143ee408ed106b946caca4b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:04:43Z), 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/ITS782500106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7caf185b667c77cdfe7e93a09e20465c6ed1b42535e3a47133f10b5accdb4ca. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/ITS782500360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71eb9e56d6e576c18c60eab70129b0949d859e1786076bddeacda562d970d489. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/ITS782500361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65251381d254177256d61267e9ff7f772048c43e172863066229212e4a0e9220. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ITS782000580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0936c1c360b9133b0c497e79540b5a62f90d863f2bc7ce5354d0d94a197dd552. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/ITS782500741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ca36057e812b52c70d09ff180d974964fc7c4f7f76c2b20feae42f812daf00. 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/ITS782501258.
Brain Dots : Study Music for Brain Power Vol.5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b81cc3049daa52155964efd9fa3901ed8311e0f31d537a2562ea53b09a6e0b6. 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/ITS781901280.
Brain Dots : Study Music for Brain Power Vol.4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8442562070a187bfdc2b057663a6795f7f059f5bf563a5607ddd3a8fa50988bf. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/ITS781901320.
Alpha State of Mind (alpha waves, study music, music for concentration)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ca436e2aebee8b5b35fa4ef35327b68cf1b3f49724794a134b2b49ad9c0785. 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/ITS781701921.