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 0x2a3dac5945089bef41cb0e8c28c6e40a7b43a449ba3004a37b884acf7a26b899. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5fcad09-b2ad-4173-889e-11149e5dc714.json and https://artists.proofprofile.net/proofs/artist/b5fcad09-b2ad-4173-889e-11149e5dc714.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 0xc154aec1dc86fc5583514cc5531360477898004daa8cc365623c6f07515bca4d. 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/TRAFK1200092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfea43007c278c4749ceb7110264a36f77529c2c75c86e33493885cbc69ed2ca. 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/TRAFK1200094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc090c1d7793ee6bd6fa9ed40d09c134b088f01161d5c2edfe4b383ec52f16ab6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TRAFK1200097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804148118b753f5ad139e5a4a0ac566a9232d773e6cbe6e3bc327afc10ef2a45. 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/FR10S2446454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c834af34973c00fc30cffddb9ffe88d18cf62252af472ee1033b201f355eb5f. 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/FR10S2446460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900428a240bd775bcf68e035cc057ef58dc63050c11f838e2665044cc4dd44db. 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/FR10S2446451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ce711e1073ad368eb0323ba3803269b92f5f8c6721bf5b10d330c7b9fc3471. 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/DGA092335843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14487a077a124e7b2926493c703189fe261374868ca97201355106c2c44fc24. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FR2X42215696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc014d042b06651e8f01dc65a4418d6d449783ebecd1e034187f573314fc2794. 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/FR59R2130916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80edd783d23980b766f4be49af4d3bddd483f17f6a0c35fcaa2c94e023864ccf. 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/TRAFK1300078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ffabad43487da84203d127f0dd50b33b9002db77cf9eeb822fd1eaea719abd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TRAFK1300097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b29886492a9aaebb207275b9a6581dee137aeb54786fe1a7666d27713a1222. 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/TRAFK1300082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039142840d8b03519f657cf4f1fdee4fd3df28ab4c3167155dc8bb14b4a17475. 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/TRAFK1300073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc36002cb9ce51d7c8972a88154c993003f612afe58fa808a216643960916707. 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/TRAFK1300110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb52aff51f7e8fac6ea5e71f3715a2d81e508b9c22cb934f8eabcbcb86d05e3c. 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/TR0331610736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9c554c40b4d1c6c754ff1134eb08f8f01673aa473de7ee75b25a4aa9e3aaa9. 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/TR0331610737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1773b101974affc4fc98cc31ec2d2edf1ab4f4502b2c2302e1506aed1451a9a. 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/TR0331610754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3f5e13503e8fd07f71163f47ce294295da9b207ee52e69d66aad5e645f4b6b. 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/TR0331610738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4149451ebf8140af3f5d44c3896ca7e533281927295776529d0aa83b093b63f. 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/TR0331610739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cd1fe3a0035c45c13370daa8d46716399c2616c6756a95b25b47cf28fd1560. 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/TR0331610740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c583857b857563049aa77fdd368cce43b52d50ca545d57d7888d3f7d364f414. 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/TR0331610758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0022d74bf9c8bf790c269994bd00c566224f736f528707f6c1eaf3ddb53e94. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/TR0331610742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee20dbd1344abd40674b8d23c69d2321edc0202664ace7a942264fa56f84325c. 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/TR0331610744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c2fab16e73ffa0a87b2ccf847ff2bca6d33f7c84e4bcc26ac132c27e9b31fa. 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/TR0331610747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94fa72b022b006b649599d2154e91028036fb8d942d7a924dd8fda7126bdde61. 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/TR0331610765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae82840b45b94bec199617df8fcc43d0d9944ce7cfe6bdeb3c0065e7c0831b3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TR0331610767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2623b042b2f30abd76b112a716fc483a3a858540064c0a00e807a197b895eee. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/TR0331610750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e273f95a81b0ffaed47f7816a8eac80910d15fc134e6f44e2093fcc2b96278c. 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/TR0331610768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf177ffadcb7c340874084f98ebc9e63d9cb1e94a57e0884008108ffd0da2b131. 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/TRAEI1200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaaf11d946c18f59ab663acb25abb0f3b8e153976ce59857e0f8c0b1c081a62f. 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/FR2X42155567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0bdfc93f8b6a0982b5801c13a7a3d3a96e6385acf2e5cd115de1954cf2acfc. 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/FR59R2521160.