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 0xfa8abdaf3b635a92bafcc325a5b1343c44ec7964089c7a5cea16e732ab33b3a2. 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/0334fe0b-2910-46df-bfe7-0950060cbf88.json and https://artists.proofprofile.net/proofs/artist/0334fe0b-2910-46df-bfe7-0950060cbf88.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 0x79ab9836f9e17d896850adb7033e21e37d6bc67a05d97dbb4c1634a4943ab802. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:13:49Z), 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/QZMEM2005472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025f5b97bea6adf7815ba860fbfb19d1bd8d9a40d613a0c7d11be84fb5807fb9. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:57:13Z), 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/QZMEN2089964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c0f605649cf49b2bc8dc4602614d4dab712fc0851fb2c3b95178629dc14e4c. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZDA62152230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a7391fadcbf35249918dcba308827233020ba078287b48654ca454d5549d39. 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/USA2P2122497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6436eb6ce11350ecbf3dde166bee4662c9990a22abc3d321d7642a6369ad5f7b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZK6F2138046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305388757ffcbc993ad5425c4cbcce67be2dd227708ab0498675255ae1cee20a. 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/QZS652126230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d01f70300a06e3a3de463b2f34379cbd4df5b7033f62c7d3551fd6a06d43ae. 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/QZHN82236161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f2e56ad0fb2f7bd9729d0a8aed6e9e003f7a88f944c74644247eade5deab27. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:47:10Z), 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/QZHN92288599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f05e9023ddef31da19259a7221d01dd24a4ded724cf2302cc71e057dcdda346. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZHN92288600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d9ea3e72b94dde8a853c94587859acd2ad23f94a9e674dd2ee7464d5820235. 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/QZK6G2245997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac999314cf3dc693108a0d9e53131cb479f6d5d342f936269392f1717c217b5f. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZMEM2230050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2770c614ebc8ddb1820ec470a954b8e00f7aa079251b9bff8cc2da11b9f58b20. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/QZMHK2215666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6882998239d7e470aa5e17565ae4202aa63687e88c69611fb47881aabf309da9. 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/GBUM92300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6882998239d7e470aa5e17565ae4202aa63687e88c69611fb47881aabf309da9. 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/GBUM92300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33794bcaf5231ba1eea385ca99a43b15537a93012c8b39c1732d8c02451696cc. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/GBUM92300123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe368d7e88f1562340e574ede4e13d62712515b86f014463a2506918c22642a. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GBEWA2303823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9bef466eb658df8e87a00e2e814d412df08b887e7980c9b68d36f489e2a2b9. 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/QZWDD2374496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631174d8eb19c0691e1fbefa310f1587b67058677a3ba88fb0d32ab2587c0831. 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/USLZJ2457707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7194a97e4005613dacba263a52dbf5bca4f2a8044469d3083fd76650b5743a53. 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/QZSYP2444652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72568ef8da8eb9a51a495b9b41d56aac16f0610e5d7b27bd7844a12cd88eebce. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZTV32416177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72568ef8da8eb9a51a495b9b41d56aac16f0610e5d7b27bd7844a12cd88eebce. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZTV32416177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2364de825c87892230fc966ba97c8a4872cf08648d9830900505bb98bcf664a0. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZTRX2429071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a029aa40de13cc9d597fc293d245cf31ca87b8e06514b215484260e6878a2a9. 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/QZTRX2565128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75001e7fac87cb04792202908ad06ecb67acc56a72e26df293b5c5de3d3bbef2. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/GBUM92500041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6882998239d7e470aa5e17565ae4202aa63687e88c69611fb47881aabf309da9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBUM92300102.
Other Side (feat. Vera Blue) - SadBois & NIO Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7951c72141111b4a968591955c21d2c1149f0ad9cf2ae5672e85da5febfc638a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USWB12305608.
Hate Me (feat. Billy Lockett) - SadBois Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe281c1a58a5cecc392490f9f74fa959f1d76f9a0c0555f45fd482cab66fffff. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZUCN2200437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ed0fe975bcedcd4d665b2894f26c1d49b75e08a019a7305e3f60574763a532. 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/USLZJ2310586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ed0fe975bcedcd4d665b2894f26c1d49b75e08a019a7305e3f60574763a532. 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/USLZJ2310586.
The Space Between Two Halves of a Heart (Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a2c7ab95318d43252de89f658688d701728ced50e9dd008c14b2c56758372d1. 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/QZZ8A2357552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a2c7ab95318d43252de89f658688d701728ced50e9dd008c14b2c56758372d1. 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/QZZ8A2357552.