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 0xfe19b79b7aa146d4d4adb38f39f87eb821a561e7c8624117566472356649a8e5. 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/58fcdab8-1a67-465a-bda6-f84d77344569.json and https://artists.proofprofile.net/proofs/artist/58fcdab8-1a67-465a-bda6-f84d77344569.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 0xe3e15158c6f38a72d32e6535b3b6a6835086ffad4ab29265d653f6910856941e. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:36:45Z), 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/FR47Q1702010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef1a65834659288dcd2f72ec68a82ad1267fb06baef2eb85626537a487592b3. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FR47Q1702020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25492e56a88a89d33ef801a70771274e7ac49e76183ee6bd5ee5440552b7a70. 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/FR47Q1702040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6db216574b78008aae5dfc1a3c518011018b1f2d49494ad7531250db4f580f. 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/FR47Q1702050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844c3d9c271f8eac00fb7205e276d287dae6e053e6f21e491f54c97860b3af00. 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/FR47Q1702060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e15158c6f38a72d32e6535b3b6a6835086ffad4ab29265d653f6910856941e. 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/FR47Q1702010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35797d0d33ef19679746ac387ae8241076c99102422d479973e22a2a6ec7c63b. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/FR47Q1705010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc558d38a3e421f84db4f836ccbd614004f78456061ed0c6aacbc8d8e27f98a2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR47Q1705060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025ce99aaff4ae606439ac4b033f01e7f3415106a7727934fc0a45525fb4eeb0. 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/FRX201913479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd401c9752fe98110c8d2841c4c425caa9409c518513734a44b9a90bcedc7e645. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FR9W12021450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd401c9752fe98110c8d2841c4c425caa9409c518513734a44b9a90bcedc7e645. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:03:47Z), 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/FR9W12021450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b2ff4bf77be1dc824ba54c842d51a69725850f18d3740ff344483c4661f5c3. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FR9W12122504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b1d8277ca61cbad132a2408db6f3487b18716aabc8a389fe2cb0b84af3f6db. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/FRR642201588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca00f77946a067f7d758da0584b515698b0f884971f25e21ccdf239e4d127066. 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/FRR642300672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa78a8f87351b038f26656e1270d5517ace2c67c7200d50950deec57b997c544. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FRR642300933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62f0f8357176fc480e38b0584b1980ef7b03e1cee261c8eb09a2ee00cfd5f31. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FRR642201436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca00f77946a067f7d758da0584b515698b0f884971f25e21ccdf239e4d127066. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FRR642300672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa78a8f87351b038f26656e1270d5517ace2c67c7200d50950deec57b997c544. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FRR642300933.
Everywhere / Anywhere / (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5d175f931e72ad223cf1461b9f88680c768abb8f58ec574e880fb1b4f450f2. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/FR9W12348039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e55af517e95ae7e7e1a631381a16af7aea19ae3d2700e8b71e9172759eb82e2. 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/FR9W12348041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f26abd69ea81a2036959c3b97e21036d9bd3ea20d03ccb92629ddc2b25e7f60. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FRR642400381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f26abd69ea81a2036959c3b97e21036d9bd3ea20d03ccb92629ddc2b25e7f60. 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/FRR642400381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7acee0cfb16f233bc926aafe9bfe965bd6e36921c8a6c33aaf6435f3d8e2c7. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FR9W12550359.