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 0xc38d16ee72ab8acb89699594ee959cff9f79c751d3e2887389d3971d20436383. 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/876ee9e4-71c1-4f9b-8768-361fe1499845.json and https://artists.proofprofile.net/proofs/artist/876ee9e4-71c1-4f9b-8768-361fe1499845.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 0xf9f99819e9db2e5c612729554cd9cf5315cabb93ca57b2533d5da806f2b62d52. 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/GBKQU2449796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785d3eeec7987bc450a57a02cb27bd6cbf9b99ef85d3d500f5881bd26736443d. 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/GBKQU2449797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf1b4625fda6cb5aa2d72328c556af2d258776ae9df37a1fb2f74947ddbf40c. 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/NL1S62400113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500d6cad731d33571e80857072baaa0c8d1df4da7e44aabb1fb109c0aca71ce2. 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/NL1S62400114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5414022047308f8694752a187f28ccb49f1f2cc5ed706d603e9bbf3feab0516b. 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/NL1S62400591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b4eed109c207826c8d2469d393b003c93df176dc193981a666d8a886af6581. 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/NL1S62400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4294889715707fc61cb6f3b9f94367c33471bcc4087820c54fc98ded224e466f. 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/NL1S62400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f4636f9868679d6a954a577b8e7a12b59b7d786e6840eba74668244af39d79. 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/NLFL72400124.
Break The Silence (Official Classified Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6034967a77f237aa248e71734b6869a45d452497cfbf9317273217c03e5b65f. 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/GBKQU2422928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153c996e46e3088d81679ccbc9a93d38d47f088bfae70ba50241acf3096cddf1. 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/GBKQU2411903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3025a8ad4eb3faeeea5e3b9b8676df9f986dbb355c49437697157a86869399. 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/GBKQU2413856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7fae401012091e5ad4f1837b60bd472ee1abf941c16b98cfed599f7c354348. 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/GBKQU2417498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad98d478dd2a75590b3008c14175f4bbf405b72a882d274deddffd6920998e5a. 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/GBKQU2417499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3025a8ad4eb3faeeea5e3b9b8676df9f986dbb355c49437697157a86869399. 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/GBKQU2413856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153c996e46e3088d81679ccbc9a93d38d47f088bfae70ba50241acf3096cddf1. 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/GBKQU2411903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1b6a05e85b947b9e37a27c40b7df511588682d18eeed645b27d06378c6fbde. 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/GBLV62321168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32c20db792703432df18460158ac08a223530642671d0b119e1cf8a5f75f754. 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/GBLV62311414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f661a84acf8804f889faacd1e5dfb3f673ac28209ca65ee81e5decb44a860eb. 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/GBKQU2370727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0673b51ff822508ef54ae6d8dcd440ad0e70cff12afda374ee3bbaf59457e83. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2359364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f6111f40d2505d3f6b94524124449d1524ea5a9d5195429a05f0b8d83ad07e. 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/GBKQU2343040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9ee5c453b6d951ffbb6249e48375ba607ca5e5fc6a5cddca9d3c78235d8dcb. 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/GBKQU2330351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b6e7525bbaa99e6b2eb6e21151cb339015068998355846b966a7056e811660. 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/GBLV62205285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7653eeffb108955ef32ff77622cc86a988c00fb7def29cdc71b0f06fff65aeef. 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/GBLV62200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf109969f982f85c608b7b61aa249fb614be9e38dc670a7340ff9e3edadc8b9e4. 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/GBKQU2298565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d6b0a8511ac6aee7fea0c9c92654a6c525a94a5835400dfb3617aea858a08b. 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/GBKQU2194652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe805829a3d649d3f60edccef17b179e41f110104f71de53fb51ab38fa7ece8d0. 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/GBKQU2187420.