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 0x12d3d2321d46a1e7c26766097617f85fb5707c85d70bf5476073b5f08c4bba1f. 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/aefc3558-8b99-4e5c-975c-20c9110243a0.json and https://artists.proofprofile.net/proofs/artist/aefc3558-8b99-4e5c-975c-20c9110243a0.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 0x78c876ddf7807f4261ba33bf6616f2cafe446639cd88d129372946d2f4de2695. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/GBKPL2090849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283d90880c72cb7652875121e35015369c4f614f400c869cad913b4660e18fb1. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/FRIDO2011668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8cc994ad0856ca6afd80cad562847edde667154b67980c58dfe8ad6ca8866e. 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/GBJX32163901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3c18a064f73459712a6c89c3070992d73be11cdc0a1922ae07517f867d519c. 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/GBJX32163904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1961d294522ec576d8e919797edf10840cfdcab60aad78a6f19fecca088c8886. 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/QM6N22232436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d17d7c48b2937e6de0ba17667dade25d331d5b712ab9b71dc624e6cc193e53d. 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/QMBZ92292254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d62bfa2636c7de05f10a023e32a2aceefcab1fefcbfad2f431fca196931c58. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QMBZ92292255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0ade26dbba6e3b8f7004dfe75bcfd07920b49a8a48e8507d3168ec5854a820. 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/QMBZ92292256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ee309692f3f7139232d2ab3a93d67c10bd3a79038d1f7698d8485937133078. 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/QMBZ92292257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d62765eee0bdef991133c46db35da2e7732480687ea5d893a5d8c97cdf193a. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:41:00Z), 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/QMBZ92292258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1961d294522ec576d8e919797edf10840cfdcab60aad78a6f19fecca088c8886. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T17:37:42Z), 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/QM6N22232436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45385f02d0bce1394a02be17db1b75444f87137fdcfccb5c5dc65d01f5b80b97. 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/QM6P42227805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b2053cca483807f21d494272093b1256b186d73c0eee60780b5e3dc05135fb. 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/QMBZ92292266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b065f70ecaaf36ac588a121f43b4cbc38d6590274826f0c01f294ab05b8f68c. 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/QMBZ92292268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f9cb160d212eaf1827169308adbbc95467c1050491e109c16790ca83242d8a. 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/QMBZ92292272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f489c09efde9581eab39ca410e467f63fa0ae7510f61946fd5c1d90e3767af3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM24S2207070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785b983019219bc58c855608902cc6c00c2bc24b2d28c6b210d0838fa93c12c8. 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/QM24S2008236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bbf52db36b63a465f8c54b4bc5f77d27125113c1b0769d9bc5b3ceebb939e3d. 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/GBMEF2302444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040c701806e2d819950d844d459b5a43010e2dcf55e4e6b0a36ea3632710e57f. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-21T17:39:39Z), 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/QM24S2203232.
Branko Presents: Enchufada Na Zona Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc04405f6cfdd2d43dcd7e8563a81444aa61270439996451b5744f5df341563e. 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/PTEN12000015.
You Make Me (feat. George Riley) - Hagan Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662e342701c25b35a2baa625daf55191440d4d514dd8b1dca6be20c37e8d8c40. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USLD91764785.