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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7311e2eb62e3e924a698a6c1329dc93868dc957ffafed5a5b26a4290c98309. 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/d8cd59b6-f5c3-4999-b853-bf786989034e.json and https://artists.proofprofile.net/proofs/artist/d8cd59b6-f5c3-4999-b853-bf786989034e.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e22057ee3ded92c090e1339101c129652e42b10514753d96ab1ce2fefadb59. 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/USLZJ2021610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5483872e0944494a2ea4b559923a97f235b28314dd099d960fb3941f5170312e. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/USLZJ2069121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9560fce83b37deb98ab5b3b19acd2dbe92e76876b06b73cdd2707ea9be9adb03. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T12:45:27Z), 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/GB5P52100307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f831a7868017f5498589fdbda4e23b39deeb532ef50c1b9569ea4a713a1fc8. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/GBUM72205149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecc31ba224fbbc4a96a6b4f769d244f053760ba9ace88f192133ea72b33bef1. 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/GBUM72207201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3af677b25f969c46588af02765d7cfcefd78abdd7b852ad66dbeb03a333530. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GBUM72206169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1cbe3249ee56007e9dffe1a20c1bd3756cb8f68eea45c931135b835b8aca28. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBUM72301776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dada3b1794a0d059fda42789d761444f0fddca39370734c469d71993478ae15. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/GBUM72300964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a4efa00356191c7051d53ca6427d279890f0173e44860778fde27ef950de08. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBUM72303687.
Mexico City (Abbey Road Lock-In Session)
Mexico City - Abbey Road Lock-In Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3faef366358cd720ab7262a2091a04291ec02eaae3608256f54bca66b869eb57. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/GBUM72309399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc050269681054dc7f0532e2b17ef8048deb9d56087399abc93387e985e84fa. 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/GBUM72308194.
Sexed & Sexual (Elkka’s C*nty House Remix)
Sexed & Sexual - Elkka’s C*nty House Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb146dd9e56817264757315a659bab0bf8307f3064ee4f582b104c500872924. 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/GBUM72402634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a77b2047f6862a600c6a5ccec5be12b22ff60dd9ade888941c9ab22f6cd3028. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/GBUM72308196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcecb3797054e3e08e9c87095c06170dc4839cebd29d12e3d843b50df1c4d2604. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/GBUM72308189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbe8be4163713bccb39f762898297d401f337114d46e5305dab467bdec4220b. 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/GBUM72308187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc050269681054dc7f0532e2b17ef8048deb9d56087399abc93387e985e84fa. 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/GBUM72308194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850e6896c27282b51938f48c442d451e2b005d4acf1e2d874ba49f7881bf71ac. 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/GBUM72308193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a77b2047f6862a600c6a5ccec5be12b22ff60dd9ade888941c9ab22f6cd3028. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/GBUM72308196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d000404b25c58506eb0386558933b81b4f91b2cf1a4c973955d913c8351d7f3. 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/QZ5FN2119282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc5e1376c34004d03965eb4d4e8a12b877b520de373b4bc8b6baaf22bf77f94. 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/IT2HQ2100051.