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 0x18a5e380f1a8005d7aa3b8e16476122b461912a59ed26d84784ab7413d3d895d. 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/61f46ea7-5f88-42c9-9367-8a2b3915a97b.json and https://artists.proofprofile.net/proofs/artist/61f46ea7-5f88-42c9-9367-8a2b3915a97b.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 0x3b34eef6e8bc70964a42999dd0c96a387d8465738916ed0841b397ad0539f6b4. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZPJ32127484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947c3efe2cdbbfcc4838c04f1e63e1dd93f5ec6fd18b27e64f511f5261bceff4. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZDA71824664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9fc9e4d8e1fc84df9a77c78d780c6685c4e15d3127734ca26faf9677dc8f52f. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZDA71823990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d9803ea45336679b6251425b4df0af4248a8bd0e4ef75aa74eef343f669fdd. 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/QZDA71825019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed6a5107ced131fd9f1c36ed9ed6762c37e4acc305bf993572db233e46a4e5a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZES61840109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880e866aae5585d346c3982acd417163d207bfd67e310ef1935c88d410ab86b0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZGWW1917483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46231d680260dd82854577612a8b8d80165d92ee4d714bd842e4a098ee6e4984. 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/QZGWW1978436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcced3118bdfbf104de25bd872d02bd4350e9396fc1094aa73130fdb1c9156d02. 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/QZGWW2069076.
Is There Still Anything That Love Can Do?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b053bf06162a514e5367f339b270b56e124a8395dee87f38097cfe7f30d069. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QZGWX2015894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83bb0e0128bf298da3a9008fec31bb00bda572ada94059dda561fc5fd5acef1. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/QZGWX2119301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef7473db77b4c58fe4261f7ee3c6bb7ab01ceb1fff835ace963bfe2f70f1e73. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZGWX2206755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d93eee5fe3ec61c9978d0923dc167bd324f0a06c46526b5249660046b8357b1. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZGWX2206754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b08629ee17f69cfce3f0b34ead854457cba12dacf2bc0f3d4b522be56b3fe8a. 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/QZGWX2249221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0a1d5dc5f6fb75d1c944255c0158d720b78a7f96c0273154d85e6e3e3e4d0f. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/QZGWX2250008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e647ea2526236167c9ae4411e5237455c947bff2576357c0c9948689d664824. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/QZPJ32145152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c601fe88191165aa8a94f2642854593b2ce7db5d331355f021ff54fdd1247b. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/QZPJ32160339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3eac4409b55dd3bafe27720cee160db86eb484462f53dc74a3adabef7538e7. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/QZPJ32179592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f8a96127fc268ff477f58ea61b321fd203ad93bc8fa4649591b3c3c26c795a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZPJ32202192.
I Really Want to Stay at Your House (English Cover)
I Really Want to Stay at Your House - English Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10ab8f5309f2e74cc8ce648f07a47f9c70d1de1fbec824facc54217875d3d3a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZPJ32222977.