thumb|alt=A profile view of a geisha sat kneeling. She wears a black formal kimono a gold belt, a traditionally styled wig and white make-up with red lips and accents.|Profile of a Miyagawa-chō (geis
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 0xb8c4a8621dbb998e599338f6a83c8ff5d1f70421f555798abd02cb42f4585bf9. 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/4179355e-b0e7-4b6d-836b-0c3545f7b60a.json and https://artists.proofprofile.net/proofs/artist/4179355e-b0e7-4b6d-836b-0c3545f7b60a.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 0xf742eba04f1203689352c68471a4c2d076da58dd62528ad56cf2c25c963e25e3. 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/IDA181243201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5693330a1f45813650e87ac30c7e607dd2193d2d597f88878a7ad0d20d00a4f9. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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/IDA181200066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b05ebdb72d6eec664826af0f4a16b5a74409e215372ee5c0ab53cccea79229. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/IDA181200068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3346faf7be13ea4336c0e037147a511b12eb399ccf0a676a69b0ce219e02a21. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/IDA181200071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb41f15de5e3655798bd3999a7e38b3b48cd9129276ba3c697e6815dc75b3a95. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IDA181425698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461a100985761d5d3029ec37d35d1d5e4089738fc3bb9183afcd9d0a55f1935f. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/IDA181425699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62f71b0c3f3c3375101b9ea4de3b40f35136015eb12b5ea24971d706144522b. 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/IDA181425700.
Single (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c9cf6a4268c74c7870cb00a165ae4ef091504533e0dc3b6919977a70bf2ece. 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/IDA181730367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3887566180c37c53f157c50a49039466489b328ec6fda434215b0a336faf74c. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/IDA181930661.
Garis Tangan (From "Antology Rasa" Soundtrack)
Tak Kan Pernah Ada (Love Recalls Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962767355bd7d51143f25bf8aa23eaa465d2ee73de89b0e07f334654b1d755f8. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/IDA181245211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c9cf6a4268c74c7870cb00a165ae4ef091504533e0dc3b6919977a70bf2ece. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IDA181730367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b365577a29b48a475d964afd4d9a1ad7c0cfb922b69145918648a6c8a8f3503. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/IDA181200061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae87bacb434c72860300d7a23c278a7357680d74391f90848f81f1de41a78921. 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/IDA181200063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be0c90d5565911e9e107b65e6cb8cb83bd0f4226aa622ca158139c2b981eaf9. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/IDA181243207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ffcae2b120c1900b79ced520c46f9293a2928b1aba01e4410620d42adacb143. 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/IDA181245201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aed40bc6bd3a14dad215cf6e27e94303da1bb5e9604526e034788f209433d89. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:53:36Z), 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/IDA181200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a867f00ff02c7f2abbc70a4ffa6f8d36812553624611a8a3602f342ade8027f. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/IDA181530144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487bae7a4cdd845fd4f2ce7194b23c1a5a408479f2160e2ae52ed4017f095b5f. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:01:52Z), 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/IDA181530141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f0df0dac9aef38913661750ddf4d7ac95d7303ff42ab677f5966b6513a7ca0. 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/IDA181245204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be0c90d5565911e9e107b65e6cb8cb83bd0f4226aa622ca158139c2b981eaf9. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:47:46Z), 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/IDA181243207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a867f00ff02c7f2abbc70a4ffa6f8d36812553624611a8a3602f342ade8027f. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/IDA181530144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5693330a1f45813650e87ac30c7e607dd2193d2d597f88878a7ad0d20d00a4f9. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:49:07Z), 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/IDA181200066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f0df0dac9aef38913661750ddf4d7ac95d7303ff42ab677f5966b6513a7ca0. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/IDA181245204.