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 0x1d4bed4dbdfb8301b9bc3e585824467e7b4fe271e4cea5d1ec1e6604fe52b6cb. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba83f5b1-4555-4928-9efc-4e96bddcb09e.json and https://artists.proofprofile.net/proofs/artist/ba83f5b1-4555-4928-9efc-4e96bddcb09e.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 0x9898fe5884b9e0853ea8e68245c82ae215e78ecd30f6a973ef12553ef6fb9213. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/FR6F31100750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa75f5e34b6a42dc00b206c999e5cb8e118e740dd6cac7e9b246c49e0ff5437. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:09:30Z), 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/FR6F31100870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f225606c075ee6cb483e0c4bdd5e7be725198989b991d33e22962b347d578b. 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/FR6F31100820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df85a97bb8550ced0944ceddad80a47565325fcaa4ebc058c51a08783878d9e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FR6F31100880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258ccca79a5123bd9e65399f6499c5b182f2af3194c104a80cbf1679cd8123c8. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:38:37Z), 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/FR6F31100900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa697b9962f587b7b8a8c988ee66f559d2d861a1f6a48f2d9457467c20c4c2367. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:08:13Z), 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/FR6F31301670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e78a7452c30169e70ce737857cac738b455147ef3fc6bd454876d1ea80ae6f0. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FR6F31505730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fbe8728d6895203fd1d8e24c890c2356da2599a7b4dd03dcee5b5734389e78. 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/FR6F31505750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157d9a0194407280b6d5f7ebf094e2c13c8bd3689fc393cc05d8010d936fc271. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T19:27:39Z), 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/FR6F31505760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3721e999403cd45ba803ac4c6f066de2cea01dd6c56300b392860d6cba382e. 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/FR6F31505770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c5f0f6e6626a7434d22830488dd52a8a6cce9b53c57067d6430dc6b5e57a23. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FR6F31505780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87dd363f7c13b1adc72d17bffd5bb4e2f2ca8818687ae3ac0b49c1c6efb50279. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/FR6F32100260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8b00a42e18d65445407d44ed930bc2e312d022ea064a8537d861f70aaed08c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:55:30Z), 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/FR6F32100270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf699daa98a070c733f81be925a5b1aa78c973736f5ec0d3b61a09906e360b52. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/FR6F32100280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ec3dcdb3ba48ebaeb118af3222838c6f2f66d3bd39f19c882d541625bbcf2e. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/FR6F32100310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3014ffb89de4458b02e5b1cd7e0f65ba158bad8565ddb2e7eb542586cc427d21. 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/FR1Q02200130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3014ffb89de4458b02e5b1cd7e0f65ba158bad8565ddb2e7eb542586cc427d21. 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/FR1Q02200130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb97abd024a59abd537bdb0ad5abdb5d7d04c04ae2348b889677a8b141384857. 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/FRPIE2200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7cda9b8c8b9946b17372519bbb8bdb0d27d399feab3878f601324569b88ec3. 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/FRPIE2200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73337eff961970ba8a9760ab4447d8e652dc19ea426946b8c25da6f6d774d4a. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:33:42Z), 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/FRPIE2200110.
Nie chcę być taki jak oni (feat. Zeus, Paluch, Pih, Rover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3463e2702c8ec7a38e2ebc3021044ee6db358ca5ecb74f9bb3a9a8fdb68a5abc. 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/PLF241401080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf028c5b7a203c4e29eb70a2e9eefaf690c3a40b7d9bc4c22b6138115d3419572. 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/PLF241602347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d7c72dc259bd82139369accabc52a7e2c0fc3b1699d777b711f77b7deaa2cd. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/PLF241401124.
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 0xe3bc923d467e4a06ffbd372a8d0f929e4ad01ee74cf1b0728f2295eed1a4f7fb. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/FR6F31333040.