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 0x4fe88a77c99adbd0d279d772177d48a27b1fec8a18990784bd0650f366cfba27. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9259d775-9643-4b11-b564-6d5b18f002fc.json and https://artists.proofprofile.net/proofs/artist/9259d775-9643-4b11-b564-6d5b18f002fc.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 0xf10bf21c267876f787bc42b4ee6e6fb010237d62e81c6b95c63361e2b78f8576. 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/GBKQU1981568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c7c5405ddde190dd638878fdb313c61642309b3b78e85949836d72d867ae44. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/GBKQU1981569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf370098019d6f9f2fa1f0950f74028719bd6957dc0a6ec7d263459d92a1fe028. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBKQU1981570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd82343a9d0839b75730bb7f64660648395c069665e3dc6907166b42f43e5efb. 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/GBKQU1981572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa43c3664385f45c06d598489d650c5a0c3a378c93dbbfb98b6524a81a783803. 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/GBKQU1981573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5462269ce01a6979a6af25e0e8e642fb36359564b78817fc60106ca824ff4cf4. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/JP92E2301194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a5c01c757539229d5084e8434fc19b4ea2c5eb3fafeb8cf72b2f2da4837486. 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/JP92E2301195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038238f0ed3a71e3f2e0d227315e89ba81819c19f2c114dae0f058a3a2fa3df1. 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/JPR502206446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140b1ccb1ea2fce96a236fb6ab6f65d612b95d2c7ae42a920c851af4060c5e10. 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/TCJPQ2101155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548a0e581d0e76e71d8c8e2f981dddc8874e94d16ebb9d29607fffe2da5cda47. 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/TCJPQ2106388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0203d5875e5198a2ba1d1ec47e4ccb45f42666c6ea07f27e1ad8649d67dcf614. 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/JP92E2301197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9585374fbf8f862abb5b2453bee2ef62549d16046954c0639630d5eba0adfd55. 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/JP92E2301200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77def6f2def107b4326eeae8711a5a70d49569f19f8800d37a38df58333f14d6. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/TCJPK2025704.
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
Taiko no Tatsujin Namco Original Soundtrack ”High tempo collection”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef912f67d29628ee459e9ee541ed82ceb9c156472060a0fea59a231fee910e55. 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/JPR502205091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb3b7bd642f0a8f52bb948029f625e459ebdfc7572f8454b12ddde572aacad7. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/JPR502205093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad110189f9e513691812b2b111858be13cb292db730a11d122a6acdc5a5d8ed. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/JPR502205094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605da0f39c9faa381ce1b12fe6d5d6fff288fd29e8cd7ad109979071aa4de7ce. 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/JPR502205096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3a8a2e62071ee6e5b513b459e1784f56ffedd27f9239d5908a1f4b97489bb5. 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/JPR502205097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe033c0fb68b1595420d87dde6295fe5a29f92c98d526cac3443ca87eb9e4a3a9. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/JPR502205095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c8b92cd7a0806a623325976846b7751d0f8b0ba8624d423f2be66b50fdfd7f. 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/CACWV2031018.
おにいちゃんえっせんしゃるイーピー２
おにいちゃんえっせんしゃるイーピー
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf4d2768a9929455f7cd820f8ce6f215e007c728ec490037c6908c5eb3cb3f3. 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/JP92U2500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294285d5bb9b2077293b03aa4620c0739e78227075f91047d1a73e247460ca9c. 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/JP92N2338986.