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 0x0119090f8215f4acd6f27f8f5da036b5ee2c063b78450ad75b2260d114433e28. 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/c8e18ce9-d41d-4db7-a44f-0b44aa9d0f0d.json and https://artists.proofprofile.net/proofs/artist/c8e18ce9-d41d-4db7-a44f-0b44aa9d0f0d.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 0xfcbc3d9dfb471f2c381af5620855a18d5fc69de4be0e19ad53efaf37fc29e532. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T03:07:19Z), 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/UST8K1620781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff176bd0537f91f5aa8d8ce0e97171ddfea6e040a3cf5a9166729c49dd3d5c1. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:54:26Z), 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/UST8K1620783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5d78a77304466a27b860cf25a101322ca60b67a431625aab892f632309e69c. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:47:22Z), 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/UST8K1620784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429aed0ce9c5b2acbcff024c9a513492ff5bf16af3dde5194a3b977918f3663b. 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/UST8K1620786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328dc66e74b81805fe18bae3fc7a2fe06bc13028b3ac159bf9e0ea2b7da56e40. 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/UST8K1620791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b0d6b8edc772572f5286fbf328440bf8dcf01a5dc9aa13cb62b1d7af275706. 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/UST8K1620769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4af867c35f2ff537f8d20c566fadfed109acb6b20d88500c5347932b391e9fc. 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/UST8K1620770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31705338a11dcaf580d27e91f45b877f70f1b76c0659f53dc6aa45e08261db32. Chain 2 (Bitcoin): anchored in block 957647 (2026-07-12T03:57:41Z), 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/UST8K1620772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3763a032e5e55ea993b80e21f042e7a0faee79387c9d493dbd932c611853953e. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T10:03:54Z), 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/UST8K1620775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01cf62fce281daff08850aad18a79a880017354d1b64217872ce2d35174b4ed7. 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/UST8K1620776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62168c6cd1498f72ace40db4ee217eae9d3e71b83008aae55a9fe476a6ee90b. 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/UST8K1620779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba69a09a8af87ba028aceed7d7e2fd12aa865c25364894ba8ba3afdfafe4d9f. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/UST8K1620780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb8d855ead7279bc4894fa11ec4516d47b4021ee12933b31bfe6a27fcd54995. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/QZES91888265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f95228253ccc96d40892ad5ff2ae3b08d7f01d8ee9253cb17e273bf133ea30. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZES91888266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64d28db55d2f9ff04ec6dea796767f5d53d17aab1965c833a9f36c6e97c99a6. 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/QZES91888267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0756d187d0508445544013112cf51a5e32af3cdbeb9209e9a5ac789c42ac85c0. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:11:10Z), 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/QZES91888269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71083a86d82d2174988489445a50bb662c908fa2365a9bc346c234179c4cf4ef. 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/QZMEP2335198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x781cf4f1e6c42b5a9411f08b3ebbc308ab801429ce1d7e417fc7fdcf6d1d2cbb. 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/QZMEP2335199.
Dobile, dobile, dobilioj | Clover, Clover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950387efebf49038079291cacbed4caf0e23bb1fdecf4d407adfa20ce4c3cd10. 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/QZMEP2335201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7242d3fbd354b49598e740429528192b0c92e4c7a9fd21fa034347521aaceda7. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/QZMEP2335203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0ad0b952fe5935b26425550bf6fd2d17ba794af180b017b47cd9326985607b. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:26:14Z), 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/LTH762300001.
Miške prie laužo | In The Forest By The Fire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4494580a4e877791be1e5e519ceb86cc5ed031d501dbc5420f9a0fafae3320. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:01:46Z), 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/QZMEN2438897.