1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xd7d2e0bfdc042eedca819aa4ddc89da61aa65bcd1c83dc6a152d2b7391de9889. 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/5dc94a19-d6c7-4369-8fa5-20e707ca8a70.json and https://artists.proofprofile.net/proofs/artist/5dc94a19-d6c7-4369-8fa5-20e707ca8a70.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 → block OTSBitcoinBlock must exist at that height 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 0x68eef9f911b3854302b836df628144f09717d5bf14cd8f4f58848d6600e19ab4. 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/VNR011035663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aeefc6c1d171632446f8950aaee79fedba7b7eb9f1dffba69950b32e49560b1. 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/FRX762000483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6c2afd6c36fa24e7c3dd3297e0883aeecf174dd22bf2f6979f2f6ac742eb32. 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/VNA1M2000627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0e8ec9dc22f58f2ea86b3f6393e0817f4bf56944c6286a26507733b68f110e. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/FRX762000464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea59c09010c5b4666a425fd744afce155a2ef06c70cb2594a6e94600c0bca12e. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FRX762000473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d1ff994c96748d52edab61f50ee74010983c123f790f39fbd22c027387a46f. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:19:24Z), 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/FRX762000452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334ba1a211a3456240c97d2d9bdd3a6836a1d5d26df7518ae891992f79ed7152. 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/FRX762000453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382b5744789abecbddc8ebc947e6cf8eb3e8bd2fcfdd978594dd8e8c308fe33c. 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/FRX762000486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7bc1e85966098c64833234fc4b68af283aa262699b8819ef9560abf4c2fb47. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:24:03Z), 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/FRX762000490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7712c854a71ec5c66b870e3de769d350db971d2f66676005e3f1e6e3f38959. 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/FRX762000495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73a6b78f5ad52a3c8a1204e147651a0e7f2e01044601035477a2d7208e61a44. 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/FRX762000496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a7be9522a56d50db99c8d1c43d05985a007521fef6899da2c479040af2f0b5. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/FRX762000458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0e8ec9dc22f58f2ea86b3f6393e0817f4bf56944c6286a26507733b68f110e. 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/FRX762000464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225184291c699c9125dceb0eb4f8c962bd02c2da4a4e2ae574adbab928941071. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:36:06Z), 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/FR10S2130468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c05f1bb324a0ce36538d1a859e19b8f7a580e6b9f299091f1410300735179aa. 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/VNA1M2000694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664023da58c8dc80a889e63e6fd3022547c66eb3bd33b2a7deb97f9813020eab. 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/VNA1M2106969.
Thương Con Chốt Sang Sông (Lofi Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a27feea4e69720f2d01b21fced6ed95cb4f6371aafdf8f02ada81614653869b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/VNA1M2280923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97f02b6ad6b0347cba741a3be5483e063a37a64bf9e731c4b99db4f681082f0. 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/VNA1M2281078.
Mashup Người tình mùa đông - Gặp nhau làm ngơ (Xuân Phát Tài 15)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752ac90621cf20043ddcf0a2adc89f483a996ad1ae7f7781a8ba606cf39d50a5. 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/VNA0F2312067.