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 0x49a731cfa5d0862691127e3ac67a173a18e121cc8aabca433b9b379071265ce6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8fd8f46a-3f87-48ff-bde8-9af15f52cd25.json and https://artists.proofprofile.net/proofs/artist/8fd8f46a-3f87-48ff-bde8-9af15f52cd25.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0829b4747f138b4584d56f39ad28d7c0dc00fc32bf07af06cb41452aa29f0cee. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:55:47Z), 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/GX8LE2467013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddd5fb1e8fabaeee5736b6e8dbe600aefc8e94f6774732e35280a1910f05f46. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:01:18Z), 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/GX4R52455069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309f6795bf7e220f12f9820d29e2dfc58dddd605832b7e7f7bc829e4c8f27b6c. 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/GX4R52471275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda402cd9a4a80738cc209e1068db1f0585e79f997cb98d9e5cbef24d90899c50. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-20T22:02:50Z), 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/GX4R52439846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1386e388d4442207e5a7f22dfd8f04fbbc21cd974ca642a1f72391fb912d138d. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/GX4R52466749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868e89c1ad47e7ae7d1098ec0c43d6a0e690035268359ef7ca04006af09e9717. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:23:14Z), 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/GX4R52418191.
Trans Rights are Human Rights - EthaCade Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec7006d2547c589fe190b7ea4ab405544ba28b60b0538cf592729e857d89f00. 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/GX4R52431350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb0bb6cf948aa9cc047536faadee6b5fc93f219d12b1a6b3b8db0e5c69cdc68. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/GX5MX2435841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833a73116b9b4dacc912ae78119b867c6de9e1dfe72f67096a19b0d983e958de. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZTB62494906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a59b5a950ffb956db1309c12d6963c23a14a27509805e2315f34e0621339e72. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZTB92477698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ff47ea56cbd32d597cc46c9c0d98752c6d820476077b9e46e3f710e5379d72. 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/QZTB72425679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15ca56299d651ef4466826e74fc65e8433a66f92a85bccf2af7e38302df4d7b. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZTBD2407578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b745b247d6d954818845978d794633bc6df67f41176a46604df56396e72d32e. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:56:20Z), 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/QZTBE2448485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe05ce42bcd2e4e9bc6bb164a79c703f4d3dba9ffe00b0fa8fdbdc74bae2eab2f. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZWFX2444291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11a85b89d7c8567d9d31853176ecb56e0c02f239c0cf5e7da86b1f13143c7dc. 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/QZWFX2444292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d02bf91f20d017eeeb67a1e7c65e8ce6c5b57fd28d1356ab980dc9811a65ae0. 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/QZZ7W2415652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6c54d9414a5492db2832007580d36b6203b6749cdaf28997ee63f914ff57f6. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZZ7X2407876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2480513c8d165b0ef2350721aaa2d0fcfcd3c50d568144acb476b32496d4eb43. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZZ7X2407066.
AlexTLM Nightcore, Vol. 1 (NIGHTCORE VERSION)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad89eb33394cec65e1544772346b06d036b80572138bc60eaf208402ca29116e. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/QZZ792440113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d382c9fb46b5c74fc187cbd5459f12b3629402167046491b5afcafed5674e6. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:07:54Z), 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/QT3EY2431626.
AlexTLM Nightcore, Vol. 2 (NIGHCORE VERSION)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c705f5c70c7ef0f60ec091e895577bc0bf373fb294e5b9dbb0a4c9b50f9a68. 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/QZHN42557178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a4634a3f0f9de96793739d16569a9e032468e98fcb218ea0b230677cddde94. 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/QZHN42557180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8deb862b08db4d770217bf50004f12bae8c334d7ea583d53615d94d138fb4662. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZHN42557181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899d75ff60a9aec4618e443dd4581b3cd414060393380f4aecfda79dd5489645. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZHN42557182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcc27d392ffca707e450799c72c3cfe2d0cef6feb1ea66d9c8aea1f12a819e4. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:17:14Z), 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/QZHN42557183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31618f5e815cb83d63857653afdd9979c2c08e7bdc20c4c12db0b8ab148b1294. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZHN42557184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba0fc73ab06c4a6a9dafcd15e0c937effd9bc71f1652fadb6f497266eb6bc16. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:42:29Z), 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/QZHN42557185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c0897fc25d46836edda3d1ae68513f5b9ec04e693b88f4d46d3ae7af09c781. 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/QZHN42557186.
10 Reasons Why I Hate You - NIGHCORE VERSION
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b520272dfa65cacb7c6dd0d6100b59bba6c52484509a4a6cbf6f97f8d2b0600. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/QZHN42557187.