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 0x4d296e6de9f82abb7d6df9c9489fce0cd3ee103a8c8008773f530f6f5b32bbad. 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/7442cfa2-2461-4920-8b05-6501a5f5c935.json and https://artists.proofprofile.net/proofs/artist/7442cfa2-2461-4920-8b05-6501a5f5c935.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 0xbdb7c74de56efb4296e1e5af05b36b8a93e6f0f458f343cd045cb1e79bb1a51c. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ES8401302419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17e67ff67378ad7296bccd9516846875efecb0bc2289128c260450557deac47. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ESA011502561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c233607c26711e34ebcd369dfd8dc0ad7f90f369d634c27f7da57630f0a587. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/ESA011502563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6a02982e80711e9edc1b3adcd1e9e2eaa18fe22efd2db56980b57ba5fbdf2b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ESA011502573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db4db7cd21ca70586576b416794a3b15b5eb3556925d23f1d85ae521da2c243. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ESA011502576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3437559e36eca97eadd695642dce68e08a5cceb129e6c97b3f083d24edd6f369. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/ESA011615804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53937fe229e136bd76f5ef85314476b479c487c7d0e8fada2eb30cfb4c3fa730. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ESA011615806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9381e68a7f969bc91249e144faa9d1f3c07cd33c631ab4c8a193f9d7ab567d3. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/ESA011615808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2aca843b20e4d9179ab92309d7c6fa0a63ab2ffd64acdb6e543b235d424265. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ESA011615810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4412f53442d9e270f6545e3cc5fb9ccb04735d7ca79a19ae2549f11aad8053a1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ESA011615817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3176aa5970e3c537653141f730c63719b101b101f474e9bc499a2f1d64d248fd. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:59:41Z), 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/ESA011706093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7c75d4e1fab4d817db32fbb980e7fc49f0146aacea925f7e2a22b2651c46fe. 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/ESA011823167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5d206685e45f68ac43e3b84047e1231b8dc78a66c571106050abbda95c4a2d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ESA011824714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69410e130e1bcb8642de70ad8130292de411202e48cb4cd5a0c893df065624d. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/ESA011827565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a80c63cbcd6f7d6060eadff1b3794b94d99449b24017a97e4a2b812c928ad42. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/ESA011970457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb86a9a21cd11c8b68106fd21f43cab53da5b69fea9d80cfb185e74240111153. 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/ESA011846505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489cf05195b93560d1db9c7e8729915642acfd73ee2812b7afe058b7a7141a76. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/ESA011852680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c9e41c714dc84afcd7fcfd32f4202dfa0b176415d08cd316b09f7d879a07a7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ESA011852682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b769d9e22485328eb290c8e6b690d28801b9cd81dd6979b98263a73e4541036. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/ESA092207130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd6ce9f403d6b663d4e9c15aef6eb3805b4035fbd412810e30ef70fa1374fc8. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ESA092209062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58881a4b26a314f26de89dad3407c675b90d13a45f135b5148bd2fd7edf58392. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/ESA092306659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01be519e416c6386226e1ffd8929306c2b6775993a36e548fc411d75b6879a5. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:41:04Z), 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/ESA092405440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb886143c047faab641f754f3f2e7f40b0e19a46fe5c69f7d9978e4b1f55f53f3. 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/ESA092405441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc621933984b4622af38810372169e5857ee7e719e724565540c25ccf36acda. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ESA092405442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630367eccb02390b64df4c37110d89e3695da81fd9788226f3b0c37fb243aebe. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ESA092405443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053e97dd7e608a155659c144c2d9ecf002cf911ea5f8aab476913cbc45132ce6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ESA092405444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1f39d11301b2acc176364f2f37c6767b757d0db216eb661ccdcb13965d9ad7. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:36:27Z), 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/ESA092405445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32adc1e87f521b968b7efa3d4af1a5954760a2a7cb169444ba39332fcbd7dede. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/ESA092405447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9c1cdfd99054d173b41f4c979f8255374a5476bf6c81492f6fa69507351714. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ESA092405448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7304050d88e057ef61aa88cbd62ea2b51f7fc822e62ca11ebf1777f1e47c15. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/ESA092405449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7414438cd8449eb25b06bb716136c8052db6822232d74c858213ac38d79b11c5. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:04:50Z), 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/ESA092501722.