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 0x18722e76608740285ae95ee63259d1605e5288c392e832149788d2b19998837f. 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/39d6ef07-e515-4a5f-84f4-68a72a4c1275.json and https://artists.proofprofile.net/proofs/artist/39d6ef07-e515-4a5f-84f4-68a72a4c1275.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 0x198a516efb69b20e090ee12a0eb7060a18be912855d780b513a7546bc5e6b0ba. 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/US7VG1671354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b6317db766e6c3697c281c9531d8eca8e1a6b1fdf92b242d0069febba7b333. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZ5AB1756202.
Dong-Jin Rice-hime (Original Game Soundtrack)
Dong​-​jin Rice​-​hime (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72cee587f7f78bfe5e57067f700f9c9d3df1edd33e863f02b12f8631c5a4225e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USL4Q1865808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d3f1006c6345a467f7e872b090582d2fcc8f547af94d4ff1a35b90b944fae2. 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/USL4Q1865814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d2967c706aee1f43aff5a08cd2dfd9777207edcf80d2ab6567df0e46860c68. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USL4Q1865816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95a105e22118c0aa4b2ddc78063ab66be6b40aa1b3b77003eea4148c253fdac. 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/JPP561101036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d5b70ea4dcc2a85c81a4bf42cdad49b4a5d43c4ede49467c6bc35141e4b5f9. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/JPP561101034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95a105e22118c0aa4b2ddc78063ab66be6b40aa1b3b77003eea4148c253fdac. 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/JPP561101036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206ff32dc273bc1b80d8aafce3ad7de270653ed72988189b8834f4443b1bc0f7. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USHM91958740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96829d61ea71aa85fd2b49e42f407bb37e8322ac8cb4bccf5c328b4eccbca9fe. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/GBMJG2116915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226405b475a5eb8ce2956d5a3a428ac7903befa7a13faf5b066cd28cc3196391. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/GBMJG2119997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62c65926d8ab7d3ac2a4a41c169451b9ad20098494441cb480c9b5a8fe11fa5. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GBMJG2119999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe565652219540a0925afadb6ebd8ee2230000164e5c8fdf24d0d069ad3aa3fbb. 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/GBMJG2120005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7db515b954cd9578e27e1c6c953b8a555e8ff52f8a437e83f50d8d0dc74b0c. 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/GBMJG2120006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cba956d10c02fa89c78a1b66f30d9485b91822273ab928ef47be8f2ab919931. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/GBMJG2120011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d3f35b98d032e9bf836ea5493f634f02c61acedf073adaffcf0293b7acc7ae. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/GBMJG2120016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a74c080c6abd9741a5881a77ce2a383fd4003df14cf800c1600898dc929b69. 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/GBMJG2231019.
POP ENTRANCE - 3R2's Entrance to Wonderland Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4047c019da49420f958c15ac081e406ce4ee4d6a5abe20d0d15e39af0b7d2fee. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/GBMJG2231020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2735dd74b4e6e35fd1e28e6de995f614b056c4f8a943f6c6fc141a366b24bad3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTAX2487836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ebce16f031049239c148330accc23e9359f8881997d835b32e96cd422b8103. 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/GBMJG2435113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93148db8af4d18064b0a40d2236e13ae708757871c8d33051ee860ad5159d57f. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/GBMJG2509925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce2c0b48737fc0a4b0529cbb80099f382e1b0943243e08fd87ba94251bf803b. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/GBMJG2509926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b98f430243cae415122f56371153ca887d15b87415f81d72be79924d5242661. 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/GBMJG2509927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa745ebf6a19353bdb49a420ae6c5b9e26c552b6eb9a3d3593f728aa986dec051. 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/GBMJG2524938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b66fd8297ef832ffbf1df4cf45ed702de2d0c2ca0c925b604d21708ec86131. 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/GBMJG2524939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f73f2e32dd669be6c3a9e42de99225ae5bc10bc5e51a7acc8bfe3a0c018aea5. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T14:10:55Z), 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/GBMJG2524940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe37fdc60152665bcd112a142319ba8c51eb2bbe945ee6fe415a38a8b09e546. 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/TCJPE1636364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d39bbe0d1001f7d55faeea34883ef48365a5bb14a41ba848cdae77dccb80a98. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCJPT2217245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba26c563bc2b89dff4b123a692d1860cde3adc80b5c292f7020029148fa6ae4. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/JP92Q2200635.
The Turbulence of Awakening - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c3645793e92110bc2f62b9e1d87d3b122de24df48699148bb4923278c6af21. 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/JPN841000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12eb53289d8fe40a81d39197b78382919f1cb5aa1258e87dfaeeed303908f91. 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/TCAEO1996838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66cd8a644574fd153aa2ae558a334ab6235542c677981c9641289a13a3b4d9c9. 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/TCAEO1996863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc0eeff2d6caeb310adc01e05e86b81152f2a5f56052499e2b425bd575d8732. 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/TCADS1872240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe605e09c0f32188ffbfa49b940520c2fc2a18dcf50a43e1653e19220d11cad5. 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/TCADS1872254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe28d9baaac4a6238386d5b6535cbf6919e546094db0da8fd7624375225530ff. 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/JPW562108584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afb7e6eca3596374f7ffcaaa83253751850c54067d41924c729ea2dd713a135. 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/TCJPV2387390.
Arcaea Sound Collection: Memories of Conflict
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27090d6d11ba474c41d39b345154c040b15b807fd633c1d795438154983619d. 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/TCAER2055599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5826f30800c7792b792631e050dc67683227b3470fb4f6395d14ee45235f2dd1. 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/JPP561101085.