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 0xa0175360667daa1994aadce5fed448baccfeea2542161f6416453d26d0c23749. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/893d418f-c5d9-4a8c-95e3-db5f1241fea9.json and https://artists.proofprofile.net/proofs/artist/893d418f-c5d9-4a8c-95e3-db5f1241fea9.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 0xa2309a56babb50b999de43b34e49a9380fb143638ecf857bd3f45403335b6261. 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/GB8KE2152792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6e745f4613ab650596acda9255f6ab932f8afddf2efc01a139d1ab56390ed3. 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/GB8KE2152793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0173426c189e19475dcdf30d164f0153a11f96e2d9930aa95be7c9df6846cb42. 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/GB8KE2152795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21ed605b3819e7b12a419918490e17d4aa042f991e3099dd4e224829ac34a0f. 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/GB8KE2201939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c260e679d18b900d9262cef60d55336c8b6faeff6871b89a8e5f6765c478074. 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/GB8KE2201942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87794eaf360da16a0b6538982c8238e4d70b1de665de5de213efcd33b4108c9c. 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/GB8KE2300924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa217606a510c85c9e97224444dab3757ca95e8a81977fa806cc77670872ef4ea. Chain 2 (Bitcoin): anchored in block 957198 (2026-07-08T15:54:54Z), 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/GB8KE2300925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629db45ea20555442bfeb72a43adfaf8e95a833bd93b02ffb6265c546d6a7dc7. 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/QZRP52272379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89ce9bbac5b68f15dd0bcc467f7a90a9f58f62115385bf06d0cc2c454ea1ee5. 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/GB8KE2158242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1938293faf1e2dd4f5529243d59f1559f519828b321c7294ea1aaf1604490201. 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/UKQNV2000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252371f5e371a3ebeb2ab097afc79fff837ee6ab4f7c3273ae9d31602a39b6a0. 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/UKQNV2000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462fa13a5ebe0e33ee8d9228dcb24abf352f09830867881f26781e21476aa69b. 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/UKQNV2000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb344d8a8b48afec087055200e41b5eea2bc55c04f73db56695b85326add9da. 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/UKQNV2000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2edba7c2cbe4caa2bad4f8e3f07e3acafe34ccc4ec3da0aaaf66d47683213606. 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/UKQNV2000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1ab8a9adbc16a5a2322b21adf3ab27e008f6e0a3a89381c67891d8b5b57535. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/UKQNV2000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70cbb15ad4be5eb9e24b473b0d621431bab90ba25947176e576fad884aa44ad7. 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/UKQNV2000037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a33d9457539b5ff799bd76186b01dea3a7d99c06c874d4456e9c6fe1df5bc3b. 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/UKQNV2000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc366c47693fd4cd87acc03425748973fb0f61d49df81f9f6f44768f47c5ae22. 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/UKQNV2000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82da32ed0df8aaa1598891f433af2c61af242328084896f42f18233caa490206. 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/UKQNV2000040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1584da553767d6bc2d5f908cad30738e105a7030bfd7f78cf2086455746910b3. 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/UKQNV2000041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ed97a3797562993a74be8fb33eac6c3a04d67a5264b53f15ccb52bc2fbd7c4. 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/UKQNV2000042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7709baf60a556dba384a869c8a170e7b94a7e2c3fbc6f20b26fc6ade15d1254. 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/UKQNV2000045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9dbf3b748c98a849a89a02586afb66a520364de4208b88a92c173015743a776. 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/UKQNV2000046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc2d56c88ee0b5b5bee5179235dbabc363c35e5f32c0a363386f02f86b28459. 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/UKQNV2000047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c20242842bf1667e360f11e86da35b4fd6c7d76ce4309eb5c11021124244d30. 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/UKQNV2000048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6056a7c6f90a24dc0296af2b93497b3d7c4ce9a1679cadd44650e5b531be7c1. 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/UKQNV2000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e6a3e754bbb88dabaa0374f66f485413707505c9e22f97c28f828392bca779. 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/UKQNV2000050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5945dc7dbc444efa2ad567f9fe2321afdc5bc105739e93257a8782f80e877cac. 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/UKQNV2000051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96ec0c1b054ffb66fec08a267311f5c54b5b1b723f4ebc3b5c38617b90fe672. 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/UKQNV2000052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b5a908048057007f251b04b61b59acd5a775ca52bb3f6e8782466a142eff2f. 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/UKQNV2000053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71b6df44616573288d41603762b1235aff8c51499cf312d51441396e31b8da7. 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/UKQNV2000054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785bc46ba48e761c52b45037994172f0928d411e7bffb23d9135cb7cb64a496a. 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/UKQNV2000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552eb0c8d55af21aaec7f1f4160b6ee6bd698e5082a7ab397b14401d7cf87316. 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/UKQNV2000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fce81221e9c29a9a02dd98ee727e5c46c27d882add9cdc15a3aef447325441c. 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/UKQNV2000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281a79d88fffd5edc1593727a3c07f0349df494427101f6dfe19942de4699a12. 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/UKQNV2000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36fdd8e5a80b8ee8d34ca009475931ebfaf85fda140b8bebcd7430c3a877eb8e. 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/UKQNV2000043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48102cc030fb4b2653d2b12fcb4e4d8f0eb0606eaf5409fed605ba833625eb6e. 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/UKQNV2000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf4aa8de884983f9aa7ff7c47349d395a448266e25798bdb2e635f370b04398. 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/UKQNV2000076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb495d14f1274c33a4dd8f23958b69402d9828e4be695642055969d5024d20ecb. 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/UKQNV2000077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42bdace6a5ef1f68f4ed37ecffa0e769ae7362a831f9e3ad59ab024fb0bb1db4. 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/UKQNV2000078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e23a69da544433f4d8f2155378be6e358cdb128461ef5af2a436e15a632a10. 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/UKQNV2000079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a59124176f4ec5a23fe4f95e57bf8e4647b300e319da4a3c615623cd823d9b3. 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/UKQNV2000081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca68d1bf75fc4158108ffa28e9acb7983f93220b5f0390bac157cc8e0e36b98. 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/UKQNV2000082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22afd9661fdd74ffb1d3d3d524854d67ca6e656d47113b90dc02ef7f6a00f8e. 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/UKQNV2000083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7d009d8e110510f4c139a90f8781b6d86b4c9fe3168cacf0dc62730820e2e1. 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/FR59R2016798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fbf3ba32f60b29a4b13eaa735953b9b40ed4a589ee4ca1f7dcea93dc38eab7. 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/FR59R2016799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae910aabfdf5fbaba1710cd29cebb2bbe923edfd1c28b8702350e0dfe300798. 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/FR59R2016800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ecb61f9b319f787ca73e89f271d7ff7ffea49c78f55cc12cb4855f8690a543e. 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/GBM6E2000105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19913685bd2c2b47f85f006e64c2d108ce98a87599fbd556521b2030b90dab0a. 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/GBM6E2000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1bc96d724bbad7cc1dc03342f930e3e1a7d49b632b7cd7633088faa8cdbce2. 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/GBKQU2119906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c49345f3f7e9c982d1b29cf89366d83415967f8961d34f9d01e9901a726e53. 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/GBKQU2119907.
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 0xdbae97df7d23c6fc78f9c5a0e520bbcec22c9a2d3e26b62cf2a69437797d8807. 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/GBKQU2031182.