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 0x65f5053ede876426a767797c444bbba44e0b3e439674b08f1fa6d0db76249906. 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/76d3b4bc-e9a2-494a-b13b-6e65c526c1cd.json and https://artists.proofprofile.net/proofs/artist/76d3b4bc-e9a2-494a-b13b-6e65c526c1cd.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 0xa0e15c9e726e122b6f3355dee5c1402853043c907b9735b9b8f0526d01e1f730. 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/FR9W11302906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398e8f784bb60b4e6ad8a23994a203c83cf2a96a4c16b84b88731bf50752a0b4. 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/DKZVA1661124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce90ab8e2261d164eeffb47dc08e02e8610c9ff38864299b4942c153194dec5d. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/DKZVA1661126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ccc9863ac0f0a958112e634bd678b0ac98331fbe28c3ea997012909c35d752e. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/DKZVA1661127.
My Without Me - Zen Baboon Instrumental Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3608326d783f379756953bdc1d9cf9cd1ba8b147931f40f6b4b7381c21f6d218. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/FR6V82403262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc7b9894ecceb85341cc4081c67c4f17867a5f494b256a5dda1603ca90f0684. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:37:32Z), 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/FR9W11807493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3424500b35e3ac49c13dad7fffa10520b7f07dab53de6090c8e0a6c9da1d7056. 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/FR9W11912438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac801d3e094daf6978a6721202c125576714e6c9a75504eed57946887406375. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FR9W11914972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ab39449e852e6e453bbdc65267017ee252247c3e8a692800cc612044c26208. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZJRB2001102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86d6fd1820cadcf37a866867e32a0ba4719810145a2bbadc99edf1098beaf13. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZJRB2001120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882b57b54c3cfd219b51260520c8b5a633d92737696b10e4648326a4bc474d93. 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/QZJRB2001126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01dd2a11ce083e361451bb4d634062b2d9559a11cf9a17175f6726a97ca9e1a9. 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/QZJRB2001129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506d7b10ad4cb1f277398f7f439878087be3fe11d2023751cd81b400e72f96c4. 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/CH6542273100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dcd765ad7cc46eb1a2873a1ef58c982a50da3b3b3380c1b8ae106c7570def1f. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:10:43Z), 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/FR9W12400435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecb82d348dcf04fa8db2f88eccd45851fed613c37713b184488e8329d12cb26. 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/DEH742515068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6314247b9718881f73da5002e72b754318877e580a56a5c634f21e03114f1b2b. 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/GBKQU1770417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7394c365e6494b11cf19edd122542508b87cd0fc541826bab3b5a4833ec948. 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/QZS642118785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93011554f575bbf153adfaeea85e6496f1b67a67dd503c97d38106c2141550dd. 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/USA2P2021472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42f4b2349782af0692cd5822b0986a0acc600d7acb3072d34b7a62bb979e839. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DKZVA1761370.