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 0xe38770bb5ae6713e24ae8de7029b3ea72fc6f10f4f84c485e127023eb1099193. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4893dce6-db96-428e-a95d-5b38844cbf7d.json and https://artists.proofprofile.net/proofs/artist/4893dce6-db96-428e-a95d-5b38844cbf7d.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 0xc058ae3d4bf1ff092b7ef00f01956e9cdb8735fb3e4772f9a6af1da8fc28a65d. 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/DEW872106353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc791dabad20bd96cf4172332f171eaf231e429e5379a113ccee7c83a55e24a. 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/DEW872106354.
Disappear - (Gorge & Nick Curly Remix) [Mixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42bad3875d3bb2e890c65a03ef2b289693379f4b6cabe9f244c72b59909ffb4. 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/GBHFW2100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56724764152ff534caabadb0a70853568695013e7b9082ee75e08ac12ce7291f. 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/GBHFW2100076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e4c903c3a19a3469d9f4417b67aa53344fb6c1eac85427f85e4e4d3172483a. 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/GBHFW2100092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef9ab27d3b5c4548adea338aa515068c2d803c3e8de47fea2b27f65452e3b9b5. 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/GBHFW2100079.
Quit Playing Games With My Toys - (Zoo Brazil Remix) [Mixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643d98ac08fa2288c92b276de3603f6bd81e965dadd5df016463481380943a9f. 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/GBHFW2100080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8796b9947d7e08e99fd0a01627a94d59b46e01bef2f6383c3a1c24f6c8abf129. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/GBHFW2100081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655b2b7c10d495ecc1fe24ce8bf543eaf389f295bc02310f488fa68a96983f20. 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/GBHFW2100097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29de90f6c4bba230d98549426f9884ebcc32eec1a5a63616550e1401f639bcc4. 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/GBHFW2100082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c225c0ceb4440650a75ead2b5f823dc9f884181e6612d3d2e6163f8d48f260. 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/GBHFW2100100.
Life, Death & Robots - (Extended Mix) [Mixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64fb72dea1d697757e6b8e36a0403be7428860b7763c6c8ded271d0c2ea690c. 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/GBHFW2100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630a00966e24fcbd8d867b3681aa591c85e6d7c940f0cd5fed90a845a08516a9. 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/GBHFW2100105.
The Weekend - Mousse T. Disco Shizzle Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a91c03b46a6b383a541b85c8b51216df562b619ce05ad22162f0f8d4fbe017a. 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/NLML62000021.
Out The Fire (At The Hotel) - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066310f1cf88394897a3526f568d69aace6b46037704241c03e337d75fe2df6d. 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/NLML62100031.
Too Much Information - Laolu Remix [Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88492dcce0184a1b2569bac0878b34cf3f2602d76a083ec532728cce8136a4e. 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/DEEC31500021.
Magic (Purple Disco Machine Extended Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150ea0f252588319ee26ca5c2162a8e3ea31151c40f77cf9e81255c7673b8c8d. 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/GB5KW2003197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60cfb247afd422ca85dee3d152d0ea054fd19c7bd644e82bc64b5bd59f7a3c4d. 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/DEM931200179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf60e58abbddcea6a09aaf19be4b1a875ff66fbda0cffc11efb561eff0164371. 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/GBJAJ2101653.
Outro Lugar - Bob Sinclar Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412a0a21df926a291ab3625ccf0e91007559b2c7d80f8c7be92d100f4adee0d6. 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/DEPI82308131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470e592f237380b652387d8855d803ae1f0aaddcedee21360899563f695940ad. 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/DEW872109166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c2996d6d1a1f7bb2f43259fe2dba51344729303b33842968619b83a229a0ca. 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/DECL12001060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0449a84c40ef931919b7605d1e42013a26da015e440bb81f610154604eb25355. 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/DEW872109620.