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 0x7fc9b3c8be23da89159abd68b4394bf49a54e1c72bffbc96a7c4a8fe147fad2f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8fd384ca-cdf0-4d14-810e-325e3c5a6409.json and https://artists.proofprofile.net/proofs/artist/8fd384ca-cdf0-4d14-810e-325e3c5a6409.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 0xfb61066d0ef007c2df72835bf27c0611b2d6e9b2a2117243c9fdb16216599c8d. 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/TCAIG2427238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c146938e810e556ee276add0d58268b146e712df899550f0a256839b759151d. 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/TCAIR2414242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ac711e6d0d5350901f608c4cf7b73cf3a6d76c6315e635a12744b8aeda073d. 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/TCAIK2495027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5a951823fadbea846c7cae6e5b1c257003fabf0ab9d0993a19a662e769dff8. 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/TCAIJ2453809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05924db359f544a08f3737fd3f11ba53db01a75663e511c06953c2312f7175e. 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/CA5KR2452283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c2964fadacaf7865efafaa519cd606d28b11aa27d29b0a9e8c5230eeb10b4b. 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/TCAID2472887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554d81e1bfddef420e03dfc4b85f2c202159760a4e2b7f667d47a5563429317b. 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/CA5KR2452245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c2e20179a8c247f78b2a8bd794573ebb044b03c9520ffbeba2d0bf909ea1fe. 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/CA5KR2452246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3a093e79258e2fb312bc72963fdd3a131ec23768e7966cd224738bc71e8334. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CA5KR2452267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca366ac3b083f47d5c67db6d47b52659a8bc0c8cb860088514567fdd7f2d71c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CA5KR2452269.
Tekno Music - BLVNKSPVCE & SQISHI & HAMRO Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9c4013296aeb656161359ceea6deea4acf90ef381f67a24bce8aae308f84d2. 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/CA5KR2452276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1372fbb745ed5938c272959f6bb1e80f603214a8a68132d53b1ad9cee4ecaa0. 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/CA5KR2452280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2d7410e7e96842b5f0fe46eff8e8ea2cfefba8252b09ed5088770d3956cd35. 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/CA5KR2452281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05924db359f544a08f3737fd3f11ba53db01a75663e511c06953c2312f7175e. 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/CA5KR2452283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4d935ab2576394198842190fd9538cc2570bb96b5301526700cf7efab700bc. 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/CA5KR2452290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2403dcd903211af33ab1af63a4e320765ea55cf7705340c0240a901b0dcbeff. 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/CA5KR2452291.