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 0x6480d5f0440a47a231e2cbd743950c5907178034e1b13886aafa72c960d12d91. 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/2eb5090c-4361-4009-b13c-146e7b75b70c.json and https://artists.proofprofile.net/proofs/artist/2eb5090c-4361-4009-b13c-146e7b75b70c.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 0xaf258250a42e82fee6b8a1357ab7689f8097ceddcd569146f2f86bf44230fef4. 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/USCGJ2036855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4fb0146ee18db53fd19c6d2816b1a48185f02d72630773fc6a2e144a3f4b735. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/USCGJ2036862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59abd7c368d3bcd0777979b4bd20e78478fb6afaa9007434e919b6c9c4274cac. 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/USCGJ2036864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb024a6a5c6053fcbd6ad0d506efeff8ea285a733f0a4437836b64bd68fb9e0a5. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USHM82045239.
Aakha ma aune sapani Female version Sunita Theigm
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddd783ab29a4f3f49bcd330f383336ed42cccbcfb30f63d9563c9e23cb0e91d. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZS8H2100214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ed5c88d827a96f9beae31932c04965528493963f7fc004b96fccfa06286066. 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/USCGJ2277761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3862be26434f8f85521034b491a35adcbe18484e7c0a85ee5dd1497b28ba76e5. 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/QZS8H2102555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe702651ca8865e77fe5b57cea34583dbb837bafaca3d0b928c35233a36ac4b4d. 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/USDY42322065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c69d18af6dff149f4d6f332fbe492259470bb5004ba508a4fc395f7e16c038. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USL4R2358882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7886d95d1747358de549863c2c2f580398c04550d353f60985eeb1905966a67. 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/QZS8H2118531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0940bbc788e28292e38617f96e813dfe814e1f064950bb9b5086413baefe6a5. 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/SE5BU2532514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c96f51d6788169324d0c29b33e06f2f9b7323cc309f5547860c4c46edd25723. 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/SE5BU2532515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd2f201ac909df55df685f4f79926bb901e4ffec0592a8fd7dcf423b224ff83. 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/SE5BU2532516.
Jhim Jhimaune Aankha - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b831c73b8175f2a27312cd92ba3c6e858573efbe90edb140d353d96a2ac704. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/SE5BU2532517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8c019f7144e69626b68d857e7e8274d05de2969d558dda81e0d3ef6c713fce. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/SE6XY2507813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67aad0125939bf5be5b3632376aa5862626f87d498f50bbec899b3f4fbf5f1af. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZZ782592803.