Caspian can refer to: The Caspian Sea The Caspian Depression, surrounding the northern part of the Caspian Sea The Caspians, the ancient people living near the Caspian Sea The Caspian languages spoke
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 0xe73e493c6a84d3ef92fb34f7de9e6bb3f2993a0056091946e4edd8d4616acb09. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/82c80d85-897b-44c1-8557-5f3edba8bb34.json and https://artists.proofprofile.net/proofs/artist/82c80d85-897b-44c1-8557-5f3edba8bb34.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 0xdf9283325b4fb1512d66a2afad7b9d7fc0591838f6d5d6365f26c80359625e59. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:15:44Z), 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/USTCB0968209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126f49f014f0ca2011d730478b8d43de6f67c6242717a2c4e193d5a2ed487545. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USTCB0968210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaabea24afd5f234a05b73423422e4850c50bb8c2673939f2fd878d99c2879c68. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USTCB0968211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x745941b341b67c60c442bad03af5a0cd9d930043a2d24d9147dcfea37406ba28. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/USTCB0968217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5a6ff07492e0ecf26cb9c01fa977515e35c5e2ee0ae3534b4f687b5a66399e. 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/DEBL80800113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd5126dcbc961e3e5d5651ae77afd8e313e96d0507445551eecafa24d752386. 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/DEBL80800114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbeb683721c66cfae9564f9e79be6da6fa1e2a05ce4d03ff8bac065647cda2f. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/DEBL80800115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484e350d7e870386e1be08a50f44868cd206a73cc35dd205b4ce24f02285337a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEBL80800117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89136aaad2f40034cb3416e9e1469388096fe95b58831e6ddd7761cf56b3b73b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEBL80800118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b85e6d40f69a1c20b06b46ffb503139aa80fdf108f0e127ada4afd02dd50b4f. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/DEBL80800119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a64f3eef24e635a8e1b094c3d919c063dfcf5f9c13b36a4bed35486084dcd2. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DEBL80800120.
You Are The Conductor & The Four Trees (Remastered)
You Are the Conductor & The Four Trees (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4bb5fc3e0a8d3fa8a94e32edd4024449171553c4627e86d548876d69eb33f7. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:53:39Z), 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/TCAAX1176050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d64481f681a6fcc8f73f2f5c86dbe550564f80da0821bca593b8dc371575474. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCAAX1176051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f346aed4b8d87be34f01c84c5d6cb053d6dd6aa2e4e4034a1ac574acd3e5fe5. 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/TCAAX1176052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9576c910271614d337be430295e23f222c1eded3d12138891a657469eb80aa19. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCAAX1176054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85209433ce1663bec537d2c65609c1c2ab1237616a2551f8b60addc66b55170. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:07:01Z), 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/TCAAX1176055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3aa44306237b096ffc1a66c79cf2962c6d6df62b5137bbd60cbfd7ca56cd97. 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/US72W1210922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539288e4dd1a2055c28b97cbb7c072957d7c01ebb0c0c7232519024a06754c61. 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/US72W1210923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e3f1d790347b92de9b3f6479523b606885db33b016718fa29d444efe80e5b2. Chain 2 (Bitcoin): anchored in block 957717 (2026-07-12T14:54:03Z), 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/US72W1210925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fa6f1965d316ceab972c2d416f991212bf17adc9a3748ddd951e48ad90324b. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/US72W1210926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd5e283ffd6104a1cf3ef21b91e540262c85aa6c333db1991cde7a7b18522c4. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:47:32Z), 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/US72W1210927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f405f536ac1d0571e231ca97d2c539327a2e56e9d6989eb3a6e3c127bded939. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/US72W1210928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf142030b64d248feb51ed35fec9a38c747c16bdd4e51d03738b094e10f5ec7. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/US72W1210929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ae257f6d355619c65239793b752384c68b5e3c2b5cb933e04e173424c36691. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/US72W1210930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4ea861b28dbf18fec1ff6347796f931e5ad2534f2f26666a9ddce004a294d5. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/US72W1210931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bb62c9919e3b9a0cff1a578523cef3bad549c8b451b83caea49c50b20ac4c2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/US72W1311100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e00eaf3886775e7da4a3941897d38d651095ee14bbd089bd0beb893ac17047. 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/US72W1311103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11eb516f001724f2a676ab54428ae534d419e147c2cb3dc1476754971ef49b88. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US72W1311104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad9763cd550317492299d99dd0089b46789f45318f2bccc4f346bc00c6fc2a4. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/US72W1511357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7781fca44f168e7d66c65ec351c3a37029e08f63b994a25df98cc4c39b320b2c. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/US72W1511358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac65dd10ad2fc15a45e37b8863b16cf0b56ccc661d7859af3551076f4251933. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/US72W1511361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca00580fe0a1d648c7464c026cb9d95e04519259babfd6d6b3e49f32f6aff87. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/US72W1511362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d5636ce9f75c00d90a68ddb687b26652ee453b07ed10cb44c4c999d1619440. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/US72W1611569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6155f4b8110876c78c4bf7bc69757abc7bdf8c810aeb8f2a306cfce3bb34cfdc. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/US72W1923504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9befa87d097e6fe3fc2f45f12d7f649c71fba0414b784949be2ca694ae8c2fd2. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:52:27Z), 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/US72W1923505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087dcb0349c32631739852db07f0671bb09ec3017b730175a48ba74140013e48. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/US72W1923506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34492aed40c9d1b9850c5788f291c2bc57f58bf1078b710bce51b083faf4903b. 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/US72W1923507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fada98ae7bc0c7668c676fc8844c24b7d1683443a59bda8d2af6b6933f0e714. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/US72W1923508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb7ecd114a8f1af3e3c5650077693834ea221723f59f103630ffb4e9ed5a896. 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/US72W1923510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30ea14d093d6b4b2d7faca0306935dfbc696670b20232eb134c5310d2817e93. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/US72W1923502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd94ddea35cb42e7fbc088812134d18983667070bd5593ef49fd9b7e7bc02c04. 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/US72W1923503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd897a474655454cbbe4e86f67f1c2aea2199b22bd0163eba9d0570ce4fb05fda. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:07:47Z), 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/US72W1923509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538a55a296f7cef172de507723a954271e82dec6a26d33885ed312c526140f4c. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/QMFMF2359496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a2bc1e89fa6b56afe3a136c3dcca7a9d2a6af2b50d7af996d81e019edcfdb8. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/QZMEV2564829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47d6cb34fe37fe16f810a78eca1fa49ca03454ef7d4c6537a8164fc046c3638. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZMEV2564830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48003e2ca95b6053ef90d279e0ed497077eb4b39c572618074debdb3f5ac9da0. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZMEV2564846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127d9b0ea7eefa5241fbb6efe2875feae10ccc9c71a5a6b9b482bd088f6e88f1. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:09:45Z), 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/QZMEV2564847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b23deeddfb18087b38a1670851e0bf166126d5df7b4cdb5c7a8f41b9f97750. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:47:22Z), 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/QZMEV2564848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd3675d5a8f57800b04e9815c8436f5eaa7ef67a7b04f94db656722b7b1e713. 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/QZMEV2564849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76d3ec61e8d224988534d95a7cf7d429f8aaf65ca8f824b4519e918f18507df. 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/QZMEV2564851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28227da103b6c247d5c8677235363b74c4702b208f572e01d0d57958c8956ab1. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZMEV2564852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0303dffb099738007f7706f780453920e14eb77f18c288e16cbdfa05063b4c40. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:11:49Z), 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/QZMEV2583202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5280d9da6f9cefbd6a8ecb0bc7d58afed31f6bee6a5c23bf73d905c9f98fb326. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZMEV2585064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1a82713218cf0bb0b8a37363f4cbe0f7b47b1a988fdea1c1a0967d4f10ddee. 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/NLRD51632178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb971e1f4ff732d4c997ca50c8b281236931c4a57c0d3ffcb68d3df86abc4f95. 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/NLRD51632402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fceca2f3a9cb0c1bf39a2cf68ac995e1a681625ac93db4105272a00a5fbdcb1. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/QZDA52259743.
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