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 0x292ddad0338b53f098b749f60515905fa38e2181c208942884f7032d50d4902e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e77d1d3b-b7dc-419d-aba7-c18245c0d386.json and https://artists.proofprofile.net/proofs/artist/e77d1d3b-b7dc-419d-aba7-c18245c0d386.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 0xdf3133316b06bb4f2e2089e5e89c625602f8c8ab6739668d10b3f97add089c4c. 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/FR59R2102605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ac7385ba64408aeb87da50d53131fb601a8897a936670ceee81de08cf1fa50. 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/FR59R2102607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800702dae3cc4cad6d61251123890489a49cb7d110dfe73fbd8d842fbc2c462d. 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/FR59R2102610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa161f29b5d00f513a99e47749e2863343baf2734019779af4ff3a850abb69136. 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/FR59R2102612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8475fe366a26ae20e5f3f9da74613172e83a32d3eab00b28b2546cec1bf29a93. 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/FR59R2102614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298fd91e01db7541635de267f7d317528323202a36b68b9732ab4ddb9cb4c590. 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/DGA072192370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f1a0cc81ce4479241255ea6851a171686d4838a98a48fc63522f0cd5bfae04. 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/DGA072192372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdc3fd479125093531d884366db872392008d6d12b78c74fd7b7d68bfcdbe3c. 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/DGA072192775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7aef123c17bea7f46a6aa408b6713c354cfcbc6a47a6e19fb843000914184e. 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/DGA072192776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad4024adf3ec1f103a897f0589c299bea5a8ff59daa4c635dedcb485c770a4c. 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/DGA072192777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32dc6947f49a0a50cd4567f725bead40db8809dea746718ed6437e9709eb4849. 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/DGA072192780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e85ed1e13ab62c13e23879fe24deba9e946df33b24d5457fb93040d8e7665c0. 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/DGA072192782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472149236ef0e2b09a6d5891cd606869da2b91536fa592b4791ce69ef1985528. 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/DGA072192783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08379d82f3e28e759219cc770c8400cb8b2b3867cc1ddad926803c7cea5d585. 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/DGA072192785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec989192a882fd4d4e843d4568b1353f8077c622c55996cec6eb03fc19d4774. 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/DGA072184186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df2a8753ae6cc695f96b7625601cf00ec033ee7765654767f1b26f4f9962d5e. 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/DGA072184190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb67a4bbf6736583e7640a50b9094d3346cdf145435d65a8903e96f50fb3b20. 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/DGA072184191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd01c5709fdb16c288310824c0a9ed519ad1671a611ae0f6791c574415ff4376. 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/DGA072184137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5fed3034c0228bce0a952e582bc3984d19ea9281baceb4b44ad2f67218a468c. 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/DGA072184139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0ab98ad5e8adafcb168432218d617e8e34f4ca4d38d52733d97a9cc360addc. 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/DGA072184142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f879b133afe5f37059fe99b28c4ccda72e556d51f379c1d63a635f174616932. 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/FRX202157417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f85193c48c021ddbc9f63570d07fac51f09e9a9eaaad03e52cceee50b053d9. 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/FRX202157419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1c585c3bad133c6385d619a7ec4c49b33a3dce2b2221ee351260d16ee26832. 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/USHM81475638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb34a97bd5106c469fc6f3fc83a358e53be289f49cd260e18e7c2eea5be3a0f. 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/USHM81475639.