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 0xc3e73ee05c44a628c093fbabc09aba237d2aa506acd0b7e9212491b157757663. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f467cdd4-8bbf-4a7a-b02e-6dc43459b225.json and https://artists.proofprofile.net/proofs/artist/f467cdd4-8bbf-4a7a-b02e-6dc43459b225.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 0xfacf3431be017cee2501c4caeede78a88fdfa8dc2e22284fb6b099557ca626aa. 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/JPPO01330255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fccc491acd9aff5a6119dffb8889cb37609b8f2bb8d54dee8191609a6afd20. 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/JPPO01707092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1d742c231a78585f0ee1d65245d0a92b537f0f7a4bd82dc3dad1a99bbd08d7. 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/JPPO01344864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb63f75bcbf4367abcff75728121ecd64ee352ac7ed1fee5e1ab94ca6ca9ee4. 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/JPPO01401958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24435cc589ec691be54fa50f144eef44cb5287566d4950ac2163faa26c8d5ef. 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/JPPO01510774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb45f6ac860bbe7496b4083815a41d7006493c49776fa242ad700297f85ce6e0. 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/JPPO01504178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f9ab8af58132b43073c83a6f42729dcc8d8970704f07f06d7b637fe949f5a8. 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/JPPO01344865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25fa6bee0bfbdd99949fce8b61271527569d225080b8862523a8df4358b10b4. 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/JPPO01330265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2590c53eb1e6c9cba22b387518612b25c73a14b2b46ad7afc898e9f05f3aff3d. 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/JPPO01615171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206dcf79d701f5a1d923c1588c444370fea5c3dd1672c465e4853255793cd786. 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/JPPO01619288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf205118d3acc18468bb657301dc09abede9dfa2e433b275aee7efb4c5dded835. 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/JPPO01619289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb620ca112ef8c0955e8ae91426b0b0846a10152e916b7d3005b9e940bef20eb8. 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/JPPO01700242.
キスは待つしかないのでしょうか？
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9708d6392e65c207d11c4cbd6690f4ceaf3383cc319ffb13ddbc94e006abfe01. 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/JPPO01704140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd845115aa109c12ae5b54e8bbc9d10cef6996ae744392b2f053db21306964a. 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/JPPO01707098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578eabe8db7a12666dc44739c6eeb77288681ee822d85f60b26d56375c210834. 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/JPPO01401968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e8ff0fde4b45290d4505abacdbe87e9b640021a6d2a9becfc8b8ced214e71b. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/JPPO01615169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2121845faa5f1c25e1e2cd93fc343056203cc08457085d0db77779175741b769. 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/JPPO01615170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2590c53eb1e6c9cba22b387518612b25c73a14b2b46ad7afc898e9f05f3aff3d. 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/JPPO01615171.