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 0xa1b94d4efaa7f7081d68e14bd0935bc3d354142f08448310775439363943bb7b. Chain 2 (Bitcoin): anchored in block 953617 (2026-06-14T09:00:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1c22486d-d2d0-4421-809e-ed0fa4776b94.json and https://artists.proofprofile.net/proofs/artist/1c22486d-d2d0-4421-809e-ed0fa4776b94.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
POISONBODY feat.Mei Ayakura [Tracy Remix]
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 0x1cb99cf5e35029f0974a355715f7d7ddf08788734233b43ee42dfef8725dd403. 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/JPW561904494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3c0e89f59f4ab9cec58d512f84667c41e0df678adb9311ab026899f34292a8. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/JPW561805099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93c4a78f42278d35be48b3a67d7997c9e12a4190a905446b0f9d3c0abec6601. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/JPW562104610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056eb41396e590250928d6313a4e3be4cb9151e98d53f1e221944b1943d287f7. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/JPW562104614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf31b4f96236b8d6e90b15075622407f7b886368f8979a8436bc8f12e1805dbd. 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/JPW562104525.
Darkness Power [Tracy Remix] feat. Mei Ayakura
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7d0f2f784c39762e757839430403cea94968585514dde74d688c763ed6fde5. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/JPW562105489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a3e1bd6d9b04b3f2fa5c8f4f280b599c28604aa8eb0f74ec12a64edb6ec80a. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/JPW562104597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9e82c45f407113bda2ec95f4c0415c3b9633b7780e8fc2c5603241f92e17c1. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/JPW562104600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54540dbd5bbd7dd0fac3e4ab7e3b0ec9a55628f08b25a245466cc24059a5eb26. 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/JPW561805123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc94c369a5367ae4f9135011814fc3b5115b69c7a4cce20d8676c8d98230e376e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/JPW562104495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5424a65edd3debd7fe65ae806c17b0e5a9242e05b04c440a32c5e9098b97c2a3. 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/JPW562104496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6b5cfa1c24d4f726c082783c7997128fee3002faefb14d81644c95effcd5b2. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/JPW561805232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c75892117cbb7db4e3a8b23600bef28b84dd27b67116763a32ff69655eb897. 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/JPW562104485.
Integration under the moon of codes feat. Mei Ayakura, かめりあ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a7d3143cdcbb04f23f3e125107171d600e4da97704d6a4597e592d0baeae75. 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/JPW562104486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a577785c8db5ad849f4d829b1aa7446b8c35233873ad2bfb2a046fdf59bb9ae. 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/JPW562104490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6248dafe4327f1ee570d64e013c36b2716baab559287e1e6e4ad482ed29aae6. 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/JPW561805197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4667bf7436efbe58685454fe4c76c1735f41360fead961c97ce5f169b285526e. 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/JPW562104554.