The Karakoram (, ) is a mountain range in Asia located primarily in the Kashmir region. The range spans the borders of Pakistan, China, and India, with the north-western extremities of the range exten
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 0x4016132db27a7083a2451ad85fdabf9254122eaa5692740ce3900a70b2082169. 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/aec06c08-5c4b-4374-bc5b-9596a7390783.json and https://artists.proofprofile.net/proofs/artist/aec06c08-5c4b-4374-bc5b-9596a7390783.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 0x1129f2d70d58da469bfdbd3cec3a1a695216997ebb87bd2534cb70c6946041fc. 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/QZK6K2027521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d567f536715fa5dd3bfd9e1c6face9922383c8ad86d30783384a399697badcf. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZK6K2027522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83304f149725dafe0abfc25049b6b82a0abfac5c8a52164025ceadc3e3564569. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:48:03Z), 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/QZK6K2027523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0810632b987a8522633c9944967921f564fe82623725768005d3706e82042ed. 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/QZFZ72186980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c04e06c62c6f9087b6162e117831e3625dfd85872782ba47eda2521e6c2d39. 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/QZFZ72186981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b5a90b52968116f63bfedba6c1d9a08d9769d5a66432ce620492008b9c2cdc. 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/QZFZ72186982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba64084b4e9260293acecc12db798018982e5e4ca19738bcd0112862299e55a8. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZFZ72186984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe202a0c7e2bbe4bafe871cfbbb2fa6a18ed8e3b849bbafdaa59ad508f22d89cc. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FR96X1894879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ff9a68082e3d11006f50dd301f7df26711073a36dc4552314777dd7a09e0c8. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/QZFZ72186987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0810632b987a8522633c9944967921f564fe82623725768005d3706e82042ed. 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/QZFZ72186980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c04e06c62c6f9087b6162e117831e3625dfd85872782ba47eda2521e6c2d39. 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/QZFZ72186981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b5a90b52968116f63bfedba6c1d9a08d9769d5a66432ce620492008b9c2cdc. 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/QZFZ72186982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba64084b4e9260293acecc12db798018982e5e4ca19738bcd0112862299e55a8. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZFZ72186984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe202a0c7e2bbe4bafe871cfbbb2fa6a18ed8e3b849bbafdaa59ad508f22d89cc. 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/FR96X1894879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ff9a68082e3d11006f50dd301f7df26711073a36dc4552314777dd7a09e0c8. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZFZ72186987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7751ce3adefb321e3d6c6775961a5aa70bc5f424f09927d4d430d1615ad0c10e. 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/FRX282241787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed1265a0d24ad787c09b3724dd0296a9c0d1772b0a5fe65d15c045e71bd82fd. 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/QZNWY2236483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc358aa8d12e85e90ccb1ee1b973d1bb2fc98518930cc09490726122f17e3b61. 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/FRX762299846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8c7428486222c87f786bb4763fcc77be09c3f90c936e68a148c27cb85df102. 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/QZTB72259890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e967f2e553346fb005c52d7408f95ba24d58d960067cc88853c8aa5aa49f1b3. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZDA82341370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17f5d4c7e4d4dadbacb7f7ccf49a82c88e365618bd649947e43b9a0dd3860d5. 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/FR2X42209403.