upright=1.35|thumb|Crown of king Muryeong (Korea) __NOTOC__ Year 501 (DI) was a common year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Avienu
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 0x9ae69cb7d6e0cc7c7ca7fc9c892e6e0e43d1091090e6f54211ce4ea412fd2c16. 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/1b611c51-0f25-4a73-b83e-8423019367e4.json and https://artists.proofprofile.net/proofs/artist/1b611c51-0f25-4a73-b83e-8423019367e4.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 0x42128a5b5be2b3dde1edff67d23150d6cc16999b841b741dc405c2d7a6f8f496. 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/GB7YL1507701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066b7cf2d5c4c027a3fd40173067760f6d9930cd3d4f4de823111b9fc9c8b878. 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/GB7YL1507702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2fd12f1cac0cf6864f9daed714e44b59d620dca5998860facdcdc93b8fd336. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GB7YL1507703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c3e9ee6fddfd240c62d876b356a26735551f8f5e984dfc5942cd3a6082f602. 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/GB7YL1507704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9614b333d2c53d7d9bd86aab05d815fb426d336eff5fb97a258b2c40a5157c10. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/GB7YL1406601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b350d58aa88d6e400de464a5e427ce5a93a6b1618470e9d59764af095baa6c9. 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/GB7YL1406603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc752fb26817a7dfc2ea4d82756b014bdbc7cb38885c5176eaf6a62d193a994d. 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/GB7YL1406604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b402aec08d9ff6b78c1bfcf1f484657e8a578049d696c5203b3708a5a3e67b. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/GB7YL1406602.
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 0x13e290a22da2fd07f983cfeb8b60f6437faf8e12dc6c79aa9da195f2b310f668. 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/GB7YL1304601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad7cf781b17cc4e24e39394eebbace92fe16e6b84846ddf6017227addbff285. 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/GB7YL1304602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6550dd3a0cffed24a95c16bbc4055f35e696ac28718cbfca69f9512e9e873c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GB7YL1304604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35edf3dbdcba002ee9d833f0461e29391efcb0289c8a41dd5dca94cbb492caf. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/GB7YL1304603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d77a33bb5a9a14077de009e872b981b9c913310f8493917699fabcdbdf08d2. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/GB7YL1304605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608c0a00467a349ced9abb6e198f6275b73402f0d1bd5426c0805929bbefdf18. 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/GB7YL1203301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0047b5de8a205c7ef034aaf5d8f33576a63d618ac45eb01c4270ad1c47977dfa. 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/GB7YL1203303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a09999d702bd4d2ff834be623dcbbafd19a93e7f743fc3c2fdfdb6fea7d625d. 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/GB7YL1203304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb604fe41d2d6b82eb804640f2e665aabb790475b4895166606508dc62618a915. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/GB7YL1203302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a792308ffbde3b0887f99e58fbbcc17a15d4f19b0e59bc94b60b748dd58a85a. 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/GB7YL1201801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5972fbc96462e56467232c6044c537f789fa597184a29fd1f513b1be710d778d. 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/GB7YL1201802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5987c1416c186a419a836d588047b10f1d860cf894d2465b464ca948329ba194. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/GB7YL1201803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013e5a5ed101096981431a9cbd4bd91307667fb3bb391322e8f3cb71d682c111. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GB7YL1201804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x942ae33975ddd846255ac884b0d7b0c208b69e99dd1fbc804e341f369e3233fb. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLCK41012496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5998e1cb15e3d2ba2d30d1e2c028a5699df7bef99215e6b6e2655e3bceffd4. 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/GB7YL1101201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaba7ac85fc49dd4317935d0ec37c73299e6334a9d431bf49804a53d23dd7175. 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/GB7YL1101202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefce4a7e2b246140dd73f4f9b7e5b059905ed4a54516c03a57025bb2660384e0. 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/GB7YL1101203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed427a10ea601bc04a6cea3490f24faf28b47abd50f839c9cc42b7e060931af. 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/GB7YL1101204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b235a2cdf990760b51531e6edf70059c3e85d1424c832cd589d99bdaff18bc. 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/GB7KY1000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabca7fa1ec9649b0a4afde617cc451b14dd54b49adfe157c90c959b157d19797. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GB7KY1000001.