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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 0x04fbe3696bd056fb42ae61acb0c0bbc035bbfe7e42cac3ffc746ac19cde8310c. 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/0d1c752c-0a06-4ae5-9418-e6c792013985.json and https://artists.proofprofile.net/proofs/artist/0d1c752c-0a06-4ae5-9418-e6c792013985.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 0xbe985dce834f02427744509955832ad4db2e58fd69e8d7b5452406789cea1b47. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GX89G2473655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaab1ab508b244b4862c855c80abe9ac1fee0298dbdc2b6db59be55fa558bbf2. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/GX89G2454060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca1d83ff7ce4230534b03b6964b1d97642232e3426c7f2a6622dfebfc9b2f68. 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/GX89G2415521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceef2b3a318062f57e1ff3c9250b5b59a8f75417694ec6f1112362530330be2d. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/GX8KD2449430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b84e417e2cef4017100be7d40c8bee5bb4618ed2fb4fe412ecfd7d15f578f1f. 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/GX8KD2436226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a38941cce1d9a26ca88f414c288f7932935d5aac4fcd8b3a7a46df33bfe350. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/GX8KD2450942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28997e02165cbb9db60ad44dfa6a48d6ecb57d6d4eacbed349730eb0273bb2a. 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/GX8LD2420397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1568d219c7f4bdf2263b0baf9fd3b880592d9b8dfd3ca087ae5279e72ea8c1b9. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/GXBDS2473395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7101e7d50c60bd4e6c21c4d759cefc56416731290ffea07dbf74064dd902b959. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/TLVEM2471998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbefdd7ad4e361e620db2f12c5441cc53338b17e74c4770cc671c7f1c2cfef3c. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/GX89G2563230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f65ec94495de8581fa24f262594775e7bc04507e3781be3f08565cf5270dd3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GX8LE2570953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c56d6b88d48ccaab8996cecef0c13cc1774bde6b6e1dabe1e55d29cbb6e5455. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GX8LE2534777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9781ed4224dc377e44fd63f2a7c7f5d860e3e05fd0ce402cd91b72dadfb0f4d0. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GX38U2589154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758a88a7678093687bf3897c20d756d204fd14100efdbd82929c31e2c52074c3. 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/GX38U2519064.
Intro End Of The World (Extended Afro House)
Intro End Of The World - Extended Afro House
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513e70dba13cc153801266fe6227d69f95a6d519132b98898bff1f76c0cc6cb0. 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/GX3HH2552320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeac8bb2da6abc0386e1fb7e1430c9b2ad6c30ed297ef730bd2bbbc95f3832ac. 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/GX4R52518625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76e511d2b19a6311715437f419e436f72abf37e0c8f1212209c1c1b3c543495. 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/GXBDS2547084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d46a56240a318cd5d9207c15484cfece2a0ba7045c3e4b10b76cc4d34581a16. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/CA5KR2590216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ce5c9efc348cfc3f318eab9bcfd204f142082e2b4c79717682acdb433ace11. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:30:22Z), 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/CA5KR2590200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1684d6645bb736e151ec19f7839449b435261afe05fb33b7ee41d7186812e011. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CA5KR2592329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a50f047d3261685eddd942d8ee7493c2a00b516296c3a2e289ef8ab633f5de9. 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/QZVEM2570573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7110c7dcc4586fda72c88504dd77001edf7d701bad1cbd8af5ddf63509169d4. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:34:45Z), 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/QZVEM2589713.
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