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 0x7903a25f6864c52985d73c20ab5e75c9b2d13b64e44d65593fb350a08ff27f56. 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/48c958a6-7e15-426f-9940-55dc6cb61ff6.json and https://artists.proofprofile.net/proofs/artist/48c958a6-7e15-426f-9940-55dc6cb61ff6.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 0x778c7b478c41e9a7995d76afd73ed723b2b90de914e293d4e11af6c98dfafffb. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPV501500237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398ea65160fe995d5a49891fd6ee41652307cc88d5dcc45628147d16c48b4030. 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/JPV501500244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b3159f884ccf17dd60f07ea6caa59a5a3e28c3b14eeb0e59dd9e2daf750c4c. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/JPU651502070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e697cbf383a52b81d54a46df778291158c06fd131d51191ac14040947b36f4. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/JPU651503710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58563a696e8329dbfd06ec751e0a873eb4c84c611c8f4aa3cf53db9c0c903526. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/JPU651503720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da5125a5a8b4a3a5a551f264cac110fda2749d2a3bb2a1643019d6729899882. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/JPU651503850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b33050d7b93d59b87aa834bec8187ee54537ab6127ea3924fab4aa41d1ca96. 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/JPU651503750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ddc223ab698863cc948ce053981f6610d807e95bb4050f5367d84625f7b457. 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/JPU651503790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2aadc1f12e193fada6e10d3a3803ccc70448c70c30e5cc1e796515d961bfc06. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/JPU651505530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8458bd60a9117f843069c1c17b4f077050503f929cdfc5f147ecf311ebf7d98. 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/JPU651505550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1e6c0d83b3cd4f7948aaf6a0456c14b8dd41d0af5d9d7985ac9b55f42980a9. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/JPU651504130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f6967000a3ec996420b6b2d66f88d5f8dd0122ab007cc922c5343deeffaac8. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/JPU651505560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3ac57f2cdcc24f970aa7ba8f0fe4e2b64b393635930766fb20a8c011b6dccb. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPU651505590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f835ab8e92c71d43edcb8075579fd8f872423b65bb2643469a102efbeb93cf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPU651506070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d574e4c838f0a0b5f9570b6a72bba128b53ab63f66fb9ed2b00a2239ced0bee. 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/QMBZ92264095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0641e3524c82a8c519e077b69ee589bdf0cf6ce9fe6024f7a01367f519a393fc. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/JPU902204113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d574e4c838f0a0b5f9570b6a72bba128b53ab63f66fb9ed2b00a2239ced0bee. 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/QMBZ92264095.
VIBRATION (feat. Kotetsu Shoichiro) - OMSB Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45597cec7c8aeb9637ec48f645da6651f6cd7afc636271b69b0c29eb9941a42. 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/JPWP02201879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e6bb9f934a1467c2c901ee64ccc51aff42fda72f928b791c4e0552e35bebdf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPU902200467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b21f979e4e622ebce714cbc2403b15a1992568df78fea61d010ab56542e9ce3. 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/JPC102400203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338e1fda4b694d1535f19bda82000450d5e4599f8e4574715acb4ba480731a13. 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/JPS809909123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5172d8077ef7ff24c385e2d997d713a1bd443bf1f2f88ce7791e28e6c07fa387. 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/JPJ902301650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993f8e22f05975d74c393b44acd3828a689fd0b22458787507c3839392822dc8. 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/JPU651503380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7eca038f658ad1fa49c921cb86a13d43f99dde7a02e7684a275857ba891f0c. 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/JPU651503270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc78a1778bce7ab93c13eed9bd72ec716de62b644cce49688409c4effa019999. 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/JPU651502950.
Triforce feat. Yo-Sea, OMSB -Arcade Mix-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185f7064d000c2a865f274217b73b31ad2bf32f3759561e966d5845ed282ddae. 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/JPU651502940.