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 0x0011b1afefebace050f726c5bf1bea79e66d4b83dfcb8738c305b71786fcc251. 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/0ee0e3bb-c639-42d6-813b-98dd3b7362f9.json and https://artists.proofprofile.net/proofs/artist/0ee0e3bb-c639-42d6-813b-98dd3b7362f9.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 0xe3be9b4477725273f7545fef6286af9382d64457137b7b7a2ad63e8ec82efca3. 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/BXIED2300261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8555a3563055650d786644bf8f2dc8de64bd412e5d3f92f08cfb5e8faff2e0d3. 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/BXIED2300180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e4be0907d75dd31eb2831536ade1981ccfcc3168028ceb37dbd6ece388c8c1. 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/BXIED2300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24449ea8cd5174c5cdf6b57b721d4b4db5e4539f25101525d121a3d54572770. 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/BXIED2200189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e6ae36d72e89953e4a8914953177c69f54c2327227f319365962c28a0ab2f0. 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/BXIED2200121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87127da8ed77b76a16ccbe57cc56b04d25365f3b703a3f2f3d05edc22f2714a3. 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/BXIED2200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba316b15981fa0b308e206d8d2b613c23f8cd11437b1390008b444848dd2e527. 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/BXHP72100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284952974967153c64b13c11585dc581876f3ad5351ae6a985d22a90e2ef5a05. 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/BCE5L2100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635cd70c459b34f38daeef5d490099e57dfd7eb573fbe9a103d5e6a3db96b853. 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/BXIED2100118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f6edcf12b99eeeb57deb8a3455796f4ae40fcb7a57703c897616c65d980227. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BCML02100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7154327f76a29674869fa6928fdaf7cf395d3432ede26ede4ee37834595c4425. 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/BXHBP1900570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6a25165c6f07fb79531d5c7c27ac45d762dd797449f073050ddb5ee0ab0c94. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BCML02000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221bb86cfb8f7df0df70ab63b9789a88447d3b965f8a73e6aa77694c657d4634. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/BXM4K2000002.
Twisted Games (DoubKore & Devochka Remix)
Twisted Games - DoubKore & Devochka Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x836c1f3ae0351b0b2db85d24140b6dd98a03dfe06c9eb00e0d7375de2b8dac2a. 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/BXM4K1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13909f9ba84051d8ddce4bb9616d6aa1ca3db3c9ed5a1def0b1dcfb7443b73e0. 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/ES71G1941389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24f80a4c1d00579f917e375d12e32bc9dea24c78e8850b2d998773c281389bc. 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/BXYMF1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01586bea4e3b53ccb8306e299cdb95ca0d012590a106848befb3b5f0d6755ffd. 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/BXYMF1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbad207bc495478a172fdffb2c30dfa948a4b1e45471155e70f8656c35a949a. 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/BXHBP1800023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6983de617f12861560faa0c5901aa72689144c5c981d42b9e216d82a8729cd51. 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/GBSMU4369165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0096d816da0121789c429646e115d16586cd6cc216790a1ff3f6e065dea3a4. 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/GBKQU1778766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5649ae8aaadcd12b316d0c289a7813c2bb3d20d74b3cfd87926596e24c7af08b. 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/GBKQU1778767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5ed20b37db40a5931a7953b7af77fd390630db55b36b9afb41f19149341ee9. 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/GBKQU1778769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a08fba7dd0dd35c57860df5a8349ac5d37259941113bc32e357cc1c50aef7f. 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/GBKQU1778771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7f69e1c896feeb8d8f999cd81e7ec7f4bea04bae41cf16bcd55bf1f67f0a49. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/GBKQU1778768.
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 0xec1d8f8fc8afb5e7ed94cd45269c1acffeac421805f2dae126ecb1e84c70bc9b. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBKQU1778770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcfb3336db03ac8ef6035ad2ddef530c4bf2b5c28c9880f5d8375f4a3ce181cc. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/GBKQU1778772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56ad5a5812ad71e17bc36642137dc632f00c5afd490487d6ce20064303f5e34. 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/GBKQU1759661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5761e0cb69d51f64702aa04c7ee12ef57f74abbc2b39e3352bf12cec25deae48. 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/GBKQU1759662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01325450a0f414c32eaf77621ad648786d3e5aa2984ba93e46800546b7cf026. 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/GBKQU1759663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ff53e913f47b65823b2b54c116fed838d442fa024a9402a6904db25560b208. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TCACZ1718910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c5ae0a4b8c8fe29a7723f56a422a5f2fbf8581521ba6a651171160faac99c6. 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/USLZJ1701721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa791dabc84388863925658922bd7f7080b2e14b5a128c2ea4d4d0872835e7a2e. 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/ES71G1644486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394c19e64295bbf68b6a62482c5b8b00acdfe8a318a9351e6c7f07a26017eb4f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBLV61622417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57ee3262a5385e487b58c4362c58516cd9dcec87e85b4406a78ef966f118c7b. 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/ITD451500371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da27f0dd75c917b837451046465f0677268ad1704707def9c7b20d22df49534. 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/USLZJ1516677.