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 0xeae5123488346476ff076f21f81f8431acc92cc51f431c670ab38f7dcb33167a. 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/a3d417df-97e8-461f-b5cb-00cc41c20343.json and https://artists.proofprofile.net/proofs/artist/a3d417df-97e8-461f-b5cb-00cc41c20343.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 0x7cd2f2cfdbb8bdde8b1401415c6ed26535d8273cb3670e31370b74cd3abc1884. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/PLUM71600632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ebaed5d273ccd2c31ebfb4f66582c0dcd59e14e548b1239868405d0083201b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/PLUM71600356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0480bcd48c4ab6b8b361304269f6659c9df3fa053f1824342f445f6593c7cf47. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:47:40Z), 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/PLUM71700323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3b9ca69946672a6f08fc00f8bcb0bd88e852730c231cda012f0d605fb23a03. 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/PLUM71800572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a406e95c706c849709aedec84f6feaac4cf98e5b92182b155a87d8b3a6f2bf. 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/PLUM71801168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59454a945ab79d1a6d0246519443f4a4104ec2d5eed06948009facee66c22f9. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/PLUM71900107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959be44b58b5a430b19b869c36c62bf94e6cf2acb5e0a74b0e449ff2f38b530e. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/PLUM72000071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bcaacbab1964d352e47b143cb1e17f9b09916e6b943d5a71c78f5038826e86. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/PLUM72000388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a6e9ef7ec6bf88f8f2c9c26adfea7b0fc375500e464ec64d05e14ed37b8501. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/PLUM72000416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7cc87210d2df85f87b87303228fc5e10ceb6de18b33afbba9a30b3b740291d. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:43:52Z), 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/PLR642200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2c3486dff2b54d8ee627def54c3f9a47d36bbaa85884ff789a5c2133ebd775. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/PLR642200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8d4aba4564eb27104b052ba17c82e2223b2b844e1061a29fe2046e4b4f95cb. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/PLR642200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800f2eaf7c7151c8f3e0f094ae07c0cdecbf53f708e199ed25bc85e12e641e7e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/PLR642200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a105392774b4398bd4c1f11edb55ded4c038dec1b5d6a1cb46ee99f6a84c4b7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/PLA552400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0076ee418be69cdcf4ea5f43e284b6575fe6a42a2e6255d7742ab4f13b00a2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/PLA552300331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bbd86a54309b65c1205d3e5a7c5e5b578c17cd928e2c2d9cc696d2a11f6156. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/PLA552400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5940011c1dac3169cac76e5bbe632dd47a66b8a5c436e3028765d2bc09b7ac50. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/PLA552300577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe15f1f8b45f48df83d01e5498d85f464370e1bbfac9de4affa485181464dd5. 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/PLA552400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d68294d98ebce644f4812178dd0b42f6f3dde30b21c45bdbec3054d03bc352. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/PLA552300916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9353a22094e826c76cf162540e4eb1ff56846754851c067d1873780eba5c5f61. 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/PLA282400279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ecf1dea3230fcd86caaf01c16a6e698d136df61f72e773c831d7bbf74674756. 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/PLA282500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd726cd2c90980b247437d8896b14cdaf9023ee12e91ec07c540286265f3c10f. 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/PLC061806680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8681bca79ec84d6141118d0302c3e3b03f28f350e6dc37b7caa2a1e4fa7ba272. 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/PLH511200149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dcae4eddda7494537b93f5a4073c01b35a5ff5931ff8a214fd057739e9e0451. 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/PLH181400396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e40d5daf2e2b7a54739dbc4b63e571204666914dbdbf7fee7ba82d3e50ef54. 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/PLH181400397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25962b0ddc5ff3614f87baa68810e2b7b17d02f1da551b7d33de0db9497baa07. 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/PLH181400398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae355150692c43746eef9231760524e65576bf8e5847b79b9e234fa180897c0. 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/PLH181400399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6adaf388677c98d9dd8ce435fdd86e14d78283c807f3a3e6792647fc873b6bd. 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/PLH181400400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7b8fe0b37f09031da0b07ce3a31ca3fc527de0f1f2ad8795147e8ab34dba68. 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/PLH181300268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab944512eee6bf0f63ce1b6d9d24fda1e9054298817b5ff84d7eeee5c25755c. 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/PLH181400346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3033efe1c9a40a2ccad7ddd2666913e6e1367f0bfec52176d0c9a05bc64a24d. 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/PLH181400402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91badd2d749acae88b654c82fc4dbd5a995b2df04f811135385f2b54859996cb. 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/PLH181300265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8cf5e57b5b94442e76d253beef9e91b6bb5ff8347e098012c61fd26299c596f. 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/PLH181400403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75422a937df4c17fd2302fb54c2a55efed12e1858cd9633aee07a6920709c0c. 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/PLH181400404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771194cb986f1fbd49c22bf91e0365a8e96a5f3497eb82f0da27055ab82b4b82. 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/PLH181400405.