thumb|St Edward's Crown (1661), used for the coronation of English monarchs and, from 1707, British monarchs, to the present day. A crown is a traditional form of head adornment, or hat, worn by monar
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 0xdcb13709e3da61ad6d81663c253db2e086ed01b2dcdcd110277c3ed1d9e36379. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e58731b-1d65-4947-9311-4a982a6c2afa.json and https://artists.proofprofile.net/proofs/artist/7e58731b-1d65-4947-9311-4a982a6c2afa.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 0xbd60a28058169ba207760efbb0fa535a00d1835b2dea52e79a7e203d031b5339. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMDA72167679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d542eedc494deaedbec2b09e77b9aa1a9fb2a957b42974abaab4e4eda50da67. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QMDA72167680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14284ba4ce66eada860bbd82ea8b0d3719f5dc40a9df69bcfe380eafdf30f3b6. 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/QMDA72167681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5d1b1080bdd4938de8e7b9d1df5549b15693a6942fd5a405b7f9801600bcc3. 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/QMDA72167682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f7c2a65ab1bd5ec453f29c69d11719e58f17b562d427721fbe89ec4455444a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMDA72167683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0b34e12c9b843934d09132faece8e9e595db5173ae272ac7a92df8f1808801. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QMDA72167684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b46f8f8593681378335f88305dd2c1671ba0fa2a0ddd5dd7155c4cacbe2413a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMDA72167687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e459de22de4c813a9c724f328f5dc95cb4dbe057f81dd189d311958550ea52. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QMDA72167689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ada60b83b724323305f479476c3b413807a565e78151f87189d87509c134c0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMDA72167691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b264ef1ae08f31ad35155f795396d333e429706fcac6b04b69dbe37662669b0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMDA72167692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73614356f772e5f6f80a985c6e18806f439d2b6f88ba51b16fac5f0c0a9ad85. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/QMDA72167693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf20f0393d596bfbfc85129e6feb9809f466a192015147ac1193b00b80b8cff. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMDA72167694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4037276584212ef37a72f3e578bdc69b1be7160e130a3a4c08d84046d8ac11b0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMFME1982903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeecbe54331ee15699b1959428afeed4ddcc64dc61372884512ab577d81b2c4f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QMFME1982905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543c7f2d4bf532ed95bef9f0d0c4c6576d532293405a9b2eaf00ad60a1ad177d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMFME1982908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa212410391dc63603cfe1645715539b6316d5024467ee9ff462d4915a36a1113. 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/QMFME1982909.
Szklana (Będzie Polane) [Crown Remix] Extended
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeecbe54331ee15699b1959428afeed4ddcc64dc61372884512ab577d81b2c4f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMFME1982905.
Powiem Ci Jedno (Crown Remix) [Extended]