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 0xa17c5b34dbdabd7472aa3a45a17a0de10ec786c3ec53577b03d07a63f72dfc5d. 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/21465ffe-5c36-467b-85bb-7a3bf932042f.json and https://artists.proofprofile.net/proofs/artist/21465ffe-5c36-467b-85bb-7a3bf932042f.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 0x57e71d329efa50e4a912786516c29d15dbef761b6c0c37dc0c37525110b3b502. 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/QZYHM2373138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6a3ea93c7607d0a6caffb4b1bd39d8a78c98422e322c1b0d27fc14abf5ff859. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/VNA0M1901303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e29d8091e62fe2f6511a103cfeb01b049e84e3346e3635bcddf695651fddc54. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/VNA0M1901306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f235f52d6b04b8de767c45baeee71f05d5dfe43435df828eefeae3d00f9e781. 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/VNA0M1901308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308ecc51c10a7a199a60ecc1aa6cd2e89d4a3ce42efd22f71383e3337bc5d18f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/VNA0M1901310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321912c8a1562ece05cd327eb89553b659de137033c86e6cf5f4d76043797bdd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/VNA0M1901312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bff5f1baa64d604977b42ac882ca9695a58cce853d7cba0382ac82a728982cd. 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/VNA2F2402237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8bd8b417040c1042238d9af66cb9a3f806a77f53175bee9cbace84cf1021fd9. 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/US38Y2407964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ef341c8455fe65312e5589682ed316e8cc15bd561cfac2675567e8d0d007b1. 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/QZYHM2410917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9325576ccf1ee387cb59150bebd60f291b22963c6829a3d4f667bbbd0221d38b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZYHM2410906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac519743fa526c86b22d4a9895bd265013caac4195602ab431e59bd0cf16546. 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/QZYHM2410883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1899c1a25a461bf42198eaa7945d95f1cc039981bf67a8ab830bc3e2487c844. 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/VNA1M2278612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df8b8929bf595865e243d99bc3ada22daa64625fe20670e800011d0290d2172. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/VNA2F2301767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29795e62326828bdc80e72e269a544d58ec9782accaf7daefd82ea376227d570. 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/VNA2F2300541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6559fc85bccee2731c2457927a4a530d6f08e21c5bc3d39da96746f6341bd456. 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/VNA2F2300474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ad414613bee0d2adccba741a39df00f09a724d901e8660ae05f4f79afa063c. 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/VNA2F2300473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648ad2f94cce5af87afe9bbffe40dbba5d1f3653f231ee54f86cbc98cc6e23ea. 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/FRX282204245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf995105701968d1fe78fa3fc14e42879f8d8e6d96d4a18cddb5e520eb554600f. 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/FRX202240039.
Kính Huynh Đệ (Son2M Remix) [Vinahouse Version]
Kính Huynh Đệ (Son2M Remix Thai Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0dee54e35f80c6edd145615ba284bae24b4bbab2e315a9d2ae7237f567fb6e. 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/QZYHM2502530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff7026f24e481b1293c11b55a86afc9436a56ccd9fa68d518309e70f3f21b8ef. 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/QZYHM2502388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbbf98fde229cf3b0c6928def5eacf13032178c72d2928baf61c402480957e4. 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/US38Y2510520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa9bdbb5793e800bf47bd0b5c5a12cf7e96bc59f8c3c614cc45c37c93d7709c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM6MZ2597500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9325576ccf1ee387cb59150bebd60f291b22963c6829a3d4f667bbbd0221d38b. 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/QZYHM2410906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac519743fa526c86b22d4a9895bd265013caac4195602ab431e59bd0cf16546. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZYHM2410883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62250e3f580f7f93770bbbc1ab5dd0301fdcd1b64e8dc9e5b1ad6c66041ef70e. 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/US38Y2520294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5c7c0bd53e7aa1a738ad47998fb01e431f4eff5347d95cbe45265344c945f3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DGA052042315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb603c5dedf163fddc6c768f6baf495f447ce5e361208316d0cdd4a2b3af8de. 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/FRX202240040.