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 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 0xaafb4ee2f40875c4174111757f6425b6e9bb4fdbadc32fefd1baee3634179c15. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db66c840-354b-4901-80c0-32d6af36fdee.json and https://artists.proofprofile.net/proofs/artist/db66c840-354b-4901-80c0-32d6af36fdee.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 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 0xea844327c5b965a927b3ed9410b912c906c50755de1690dec7cddc6118b26144. 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/FR96X2212336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb73af2db1532aae79a55b0df751a04895ed644c2aa92ad664c932e4441f586f. 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/FR96X2212343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ff88ba324fdd2e355f18272d125012c1102013a0fb59d518e1beb1d717fcad. 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/FR96X2212345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54248ea42d05b5007df513ebabf0cdbb0b9954084294147da047f542b18e60c. 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/CNF121100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa4b78eb874746662d94e28c4e8e1237ac782371fc1307c469150e458184296. 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/CNF121100176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd18383d55ef6d16213b44878430d4733c2c115f1a84bb031933eede32e72a62. 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/CNF121200291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98eb042bb1a643d3171bd1d3c0e177e1c83a2eb3a560f8ea88f9283815e22400. 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/CNF121200866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb27a298c534d527963f7fbf4ffd061449b2776fe7708fee54bf8c87892c1d8. 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/CNF121200132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8ffd4407af547474e26f2c04739e812372ddb7dc5203f0ce99bb19613644da. 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/FRX282237461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25e2c1be678199b6e669a414b268db12cccb377928a8169955a46069f611344. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FRX282237462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562d894b383d07205af321ac230b67a9c4e7348f126be07d0979b8ac41cbf8a3. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FRX282237463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b00b13bddaf469e9930d60a8c4dddda73e325731fe0dba6f74ddcedb30c0d8. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FRX282237473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841391d18603a66d85026370fbd9b1380e51163e1b29cd4a3865056d567a7b8c. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DGA052393213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ad7ab93a8ae497d260c5f50450200a47336a40274ed63fb4ab363e2731fed9. 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/DGA052393222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe3e2a477d1de76bb0f3d7b76933001c131d1a732ef95bc2bcf7102a03a6c83. 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/QZZ972320596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2488ee0f6969ef619f42b9ffb39a2a88e04b88de7e2405dc62707d1aa589a4. 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/QZZ972320594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339693e55a8574237255b2b710fcc010efaa0cf18d75fba94d0c8843070b86db. 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/QZZ972320518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x111765cf5fef77934651f98402b0b23604512df1c76e45e7602fccc9b7bbdad3. 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/QZZ972320517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df2a1c283025da7d9c7d674cfecd910c847536b385a2336f0635b008dfdb603. 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/QZZ972314402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac33ccc4a720089339b8332d3f3322563524a032acc005518b216c4c1c74ae5b. 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/QZZ972314401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0675d6799f02facdc6e1ff0173fc1ccefdade49dd2470f853719293c6c1795a7. 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/QZZ972314397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9798ee79394b3bef7d444b6a41f484df29cf61388042ed401de20913c2da6221. 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/QZZ972314396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36520a11f0d4ac78d596667491df95aa020a6302a818d771f02ce51495f1460e. 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/QZZ972314395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9223fea88e62f3a6a920b6539700c969be7ce7b818302f3c8f0bf8667033b2. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/QZZ972314394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc659c62e06482b5212427b179deedd321c46e6928eba05dcfbd15a8a9cfa58. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZZ972320480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489202f64e26b9710dc6677bb20e47c0e9754e26448ab516e18a76fceafbc92e. 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/QZZ972320479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174c5fd19de24299ee892bf083a71ca81f94b786623955dd8974243d61441dc2. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/QZZ972320478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31966cf8b34e1736d8e5d548625ad0189271fa43ed90ae90411308ad786793ff. 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/QZZ972320477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd918df7ad0e5b446a5074067027f57a7359e738e54fe81171281b9c6bbbc0b73. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZZ972320476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f3bfa9e373b72b9b6152c37c06e7df58f0fec1c8bd1c8548186c78443354f3. 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/QZZ972320474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b3170002ef55bdd885f8bea3c5db23e8aa5c1025b2d0ff47fda89229313c15. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/QZZ972333402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3d24f65458a8244acbce6dd13f6c7de85122f3e27eb1513c26ade7c1667d0f. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/QZZ972333401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85d336612b5871080931319f660769f6065180e1d7d4605991436c826dc551e. 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/QZZ972333400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f0936520d3752ab3bd51e61cb537293c31ca4b8cc7201bfe7bac8fff9e956c. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZZ972333396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c3123b1ee92fb7b63d8b254f80b3ed44c575b3a189b3ebaf0256dcfb0b8fca. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZZ972333395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53239a61d7bc230a2a42a43c1e126284d1ce0dd95ad61ac56b5d28c1710be74e. 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/QZZ972333394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd42dffa1819adbedd250ad450452978cec5bd6515700a203e9071acdc0d344. 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/QZZ972333393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4579adf0d1c521cf9a0d325e6cc17b96a1edda0e75fe50828c1cf2ac9f040e. 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/QZZ972323525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259e73d3cd9ce0332faf81d1ff4cc721e6123dd379e24b7bf2ea1bf7aba9c388. 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/QZZ972323521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2adc23659aa5fd0b78b106698304039b96fb19e6f005dd5afac7e9f8b75bc7. 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/QZZ972323520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fbd850b3f815e40bd0ee711fd9477cf1756814eef44705b6b56328caed8667a. 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/QZZ972323518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb436156397fcaefbee9495fdb4ba6dcc048b0119cb739d1a84a1a76b924dac. 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/QZZ972314381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379eaea30606acdabf02e578db6d40aaac0dd6d80796a4dcc8ddeffa73100dd3. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QZZ972314380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffcb3c307f2f0b768c53c70b5472f478c5700a84d5552b7da196c1a50483ed93. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZZ972314379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d5ef0db227a0619ca4c5f02d251eec4cdee501a23a5306c138b0763cf8e72f. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/QZZ972314375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ab12fe20f42367e003d63e743b5842cabab502f87105004ab0fbf5c3eec407. 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/QZZ972314373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f572f3635fe11d5a3f17bfcc5675ee68144950b78a496d9e403728422d9d3a5. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZZ972320622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dbc9f95c479419738543c517dada785fc0ee398814179f5ee95024fb794bbd9. 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/QZZ972320621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fae7337b3392f92eadc2c1cee9eff3887af9eebc19280e12ef9f514ad9c79a. 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/QZZ972320620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8fa6c1776f0de2bfaa1ef49542f19a6bdb9f6da4e548a0075e112546084867. 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/QZZ972320617.
纪念中国唱片100年—名人名歌6·在希望的田野上(1978年—新世纪)III
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0c22ebc38fc181495e2510d6701962be1ac66fe891940232c9077504732c33. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZZ972333001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f81b9c75e420aa66499f415b4669e6c8725f6ec63fa49ddb5d8d2dd81657386. 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/QZZ972332999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613a19844622530914657c8bda585a2c2c21ca7792febb754f8feb0ef09e8412. 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/QZZ972332996.