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 0xddf89c7b4c33e7c277f4c0fde11e6ed7214e7b2c6a653f9309d290f1b183843c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9de351df-ed22-49f6-b36f-410df6c9e211.json and https://artists.proofprofile.net/proofs/artist/9de351df-ed22-49f6-b36f-410df6c9e211.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 0x9cc3862e80b0629bc68fd9578b7bf7fb553bd29342a7fec81b9ce2c34d079116. 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/QZES91955097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb7528547eb7b353cb5910d0e6fda0053a2e681672463a96b70c7baa66ca8f1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZES91957960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb450b9a5390a871153242250d53995b1ec863864d2bd47c2990789ab9aca961. 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/QZES91957961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba62eef486106f0775ea6c8621b262599974a8d8b88944d6e5f8f5a138fa899c. 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/QZES91955109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6205bbe26894c8d80b59769dfce2b7b95d92872b7919266a6aa36dae7abbde. 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/QZES91955091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1510d6d8d1fac4354ef9eea3898141d71b2bf5557a268944614c4c441008fce. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZES91955105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf44bca7b97b781d98c50c2e724faf2ed013a071ec68fa43c8574bc75a0a2b0. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/VNR011019867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c88859ef9300c8e077daadb69f182fa5fdfc0d86f6449c6da8790dbcc74aec. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:25:07Z), 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/QZES91955093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa31afd14ec7f815eb88d05eeb1ba058de27a4d308db876c523bd22ccc5fb44. 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/QZES91955094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c64eca6217b2959d9a6a70c4874ce42fa396a8d0ec2df3d8e29a20e924c5c5a. 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/QZES91964509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6b21c2419e7520de90b02cbc9f7321fc24aede24547273a681836288182452. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZES91951902.
Những Ca Khúc Hay Nhất Của Khởi My Phần 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38061a748940f42a13f6923a19fc3d3c77ab5c978d82f0a1661a4f6f768317ab. 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/FRX202501796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0afc4f1fdc4ff236fc35d0e0f4ba477298110e515ec5fe2c0fd68f1c0fbacbe. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:21:52Z), 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/VNR011034096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee13b00be62bef0cb438edaa468271a2ace45d5d92570252ad0adcb1100aeeba. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZES91940406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9050c7b70f73498a49753499284119a7f321b2aac5c2a0c7b2672ae74c51649. 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/QZES91962317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a8c70d41710880f7ffdc3da62b04637b284f5a777c344f22fcabc49a6051279. 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/VNR011040630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff62bb1b373c83a9f4301c99f5e7d4252384feb8201fed654e5ddad7b7f91403. 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/VNR011040632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3401c9842c76239f60f7076d8e3a620f7698946403d8ce3863572891af66fe. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/VNR011040634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cce1c3ba992a5e3383abe85765ac0979e2ee797626fe94fa274060199e7ac1b. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZFYY1987349.
Thiên Duyên Tiền Định (OST Tây Du Ký Hậu Truyện)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe7624089748276f861ce3e318be3fe346cbee6b1bbcbdcafdad2a3543a7bde. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZFYY1987352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f93302ffb3699e7a991e182a09b13dfade0b995ad656319b84ed65ad712f285. 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/DGA072235632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7296abecf34f69b80a771c131ac5603dc442ac3f4153214a303522c92d262891. 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/DGA072235634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352f34b3354dda08ed0e8fc773c034dc6627b15d0a15f18315e5b341e727ff5b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:01:04Z), 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/VNA0M1848211.
Chuyện Nắng Mưa (feat. Kelvin Khánh) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef025b329a3dd1bd0e1cb72d6ad5279510780866471cad4ba157a74f33dafc54. Chain 2 (Bitcoin): anchored in block 959003 (2026-07-21T14:46:47Z), 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/QZN882151745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf186bbef12b93673a997157e51ebb757e88f52a1ab8ae03813a12fff868313. 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/QMFME2387146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7477b0e1aa6848bc252bbb49b4a132ebf83d25ecc9a7b966d29db45bcf0df3f2. 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/VNA0F2317964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a32ec34ea7df60aae0ae250c585601703462be12cdb1107f389c540232365a. 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/DGA0L2369790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be09ef8c102d7d0f6a975fab880f78e335c5b168fe531a6e6c9909db0b242f6. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:31:18Z), 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/FR2X42480985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5898ad465891a2f88a45164f34d593e4345d9291baa63161d03f3aec016a5aa7. 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/QM6MZ2421283.
Cành Phi Yến Trong Mưa (Cành Phi Yến Dưới Mưa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda702e555e0da5c5d40589ee9ea7790ae89e54b6d88e0249bdd682f7bee45535. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QMFME2446373.
Mưa Rơi Vào Phòng (Huy PT x Mimilee Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f8b5169166a284c3a70dda34f2860e41b8f139486a94c54e3da8f73e5bbc72. 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/QM6N22516864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4555cb23f73e8c68aff2c2fa7813f0936b54d78a335f17add45b5fc773fbeb7. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/QM6N22516917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712d871fb529b7f7acacd6db66d199192ad6c734205b5c20d94893307efb3a2f. 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/US38Y2537597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551bbb04a6b8cc5c9f79cd994c3131416b37578fcfc0f164e2e91eca1dea968c. 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/ARIXB2501516.
Người Lạ Thoáng Qua (Đông x Thazh Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0823232b6be93749f75eb8ccad1844961f2a55d704da0706373fdc8cc2f68532. 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/QZNJX2526748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551bbb04a6b8cc5c9f79cd994c3131416b37578fcfc0f164e2e91eca1dea968c. 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/ARIXB2501516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb62f836277cf9144aa1e028e4c8d5a983da2fce1432c4106a99a683b9b3e97. 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/UK6822122884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26ea8280bd9c8bcc87d679823e905cc83483bdf81fd803b06b34d29126d52de. 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/UK6822514903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c2d1e8c85fb2e65ff87c93001eddf6b5922c307752634714a3378e97e6d4a5. 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/VNA0R2501620.
Mưa Rơi Vào Phòng - Công Hậu & Văn Khánh Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a26dcece4d08f1ca60760b563a8b8009a8242321a19cb3b5c34356062b9143. 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/VNA0R2501533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f510b87eb445e7df8beab62788c30961adeb34d45f6c5b58f224e9727ee5ec0. 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/VNA0R2501115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a5792eba013a51212d1dfb145712d99e43f2ecbd034b56d3022709b6955f96. 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/VNA0R2501116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee201d59bebba29793f8e64c3f68a7687c17b038c98a2ab80c59720ac548e012. 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/VNA0R2501132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2f9130dd9c625ba7fe060bb8b069951ecedd84b0ef15dad30f33207330cdb0. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/VNA0R2501113.
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