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 0x9a0fad0c8e4e9ab8cc221644f48b7c49e3599b2e81398eecb32ac2426430620f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/97865d30-988b-401b-955b-444331054e3e.json and https://artists.proofprofile.net/proofs/artist/97865d30-988b-401b-955b-444331054e3e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ミュージカル「忍たま乱太郎」第12弾 まさかの共闘！？大作戦！！ 劇場収録の段！ (Live)
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 0xa164ae8f72a2119c18031e2fb24cb411cf70e50a35e675781785e801727efb18. 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/JPR502206412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf60d4632079b2f3640f145345a147d1b9ef602547db5f94a6ed610fb56ebfe4. 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/JPR502206413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9cb7c2eed60e8fbaa2ab820efa818452ab9fcd954d8a7ff29f8527cf62fe11. 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/JPR502206425.
ミュージカル「忍たま乱太郎」第9弾 ～忍術学園陥落！夢のまた夢！？～ オリジナル楽曲集の段！
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb47a2257be9b1925ff94a5aed008bbacd1f4a26c590e6b3248f005386bc6c06. 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/JPR502301115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2e9895b265e9683278b7149aa766e8b54061608641c041c59d7611f4cf506d. 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/JPR502301119.
ミュージカル「忍たま乱太郎」第13弾 ～ようこそ！ 忍たま文化祭！～ 劇場収録の段！ (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf364dde02d6bdfb9f4602c13f75dab3ed91941b5c6232b0f63732cf4cb323612. 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/JP92E2300937.
ミュージカル「忍たま乱太郎」第10弾 ～これぞ忍者の大運動会だ！～ オリジナル楽曲集の段！
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd7f26251b53d48591f8319c8d7e2b17a507732a809d5c6e43f1dd221c70166. 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/JPR502206388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe179cc800a6d0af68e1e1e943fb12ef6ec21208e993d3e6f2f950e3d325b85e. 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/JPR502206390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec28193f478e41dd941f2d1a419e2abaa3fd9866f21bc01c63fa68a1b55a29bb. 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/JPR502206391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d64d08a4d62e4db7dd247fad6d7e640d814b4460955129083ebcf7afd9661f0. 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/JPR502206395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd2359bcdb67d3ecf5c246132054dc78efb8b139886ec51a2ac2c653a24ffbb. 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/JPR502206396.
ミュージカル「忍たま乱太郎」第8弾 ～がんばれ五年生！技あり、術あり、初忍務！！～ オリジナル楽曲集の段！
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6f5f62d10a241fc235aec5409bc7ca8cc240ad9e0d586a49a6205f379357dc. 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/JPR502301091.
ミュージカル「忍たま乱太郎」第14弾 五年生！対六年生！～お宝を探し出せ！！～ 劇場収録の段！ (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5317517bab0c6a7e0ae5c92c8066b24471ae94912d83d5b06350b60a10eafb4a. 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/USA2P2464766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd814c7adedf02b579181c7d74d29abad014e833237ee6223ded977c2909688c7. 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/USA2P2464767.
ミュージカル「忍たま乱太郎」第11弾 ～忍たま 恐怖のきもだめし～ 劇場収録の段 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4089368d1ed23ab03720c424f3ef20c158b7c2296b72ecc4c5780b4cf71ba8c3. 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/JPR502206372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e8ae920126de338944822de874e1c38504e7af7c99914f73d73bd49f8f6c31. 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/JPR502206375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467e48062fab049415a6b36521eca9c4acf82dc4666c398cf4ba758775247eff. 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/JPR502206376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9eb33845d8156667ff3875537240b0348763e789103011099044d909d45787. 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/JPR502206377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02fb263d985fa91323a781a0de25b9ceeaaaa8ebe39bcae8dc119daa13185c1b. 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/JPR502206378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9be5b0a04fb138912c663427dc5b50425fe7e8ecf211b3de7683de8cacb0946. 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/JPR502206382.