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 0x68db1a0b330468a81d5f7b9063fb47c7c968623fdc41fc911ef9ddb074388ce4. 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/40ea9057-8dd4-4a7e-a33b-11abbf490f60.json and https://artists.proofprofile.net/proofs/artist/40ea9057-8dd4-4a7e-a33b-11abbf490f60.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 0xdf9324458540984fa8e117768cd7c7fc64b99c5fa7596256bb2dc7eb076d1084. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPKI01315364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9445d483c0ec3eafba20a44f0a2462294afadbc0157ea57651b5662fd320034a. 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/JPKI01217482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb3a6a7396b905d3c9effcded5fc623adbf0242ac70197679495a256800130a. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPKI01217496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d66d32656c118ef6213b2523f7f4f024385a90eb2199522a8eca24e3ac2a0e7. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:06:55Z), 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/JPKI01217499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd207e54c42e536cce5cabeb035f97d58273a4b07b2af455f8b7acf7a3e2ed750. 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/JPKI01217492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28af0f681e65a2d05b7690df2e5d582bd20f678c803ba6f7533edf7fcff61709. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPKI07971313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab76e5fbd07a9cf80c944922324bfc1e1868df1eff3a8b22b35226dbb32a9f9. 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/JPKI08692070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e66574eacad0d3e7af3f32c2df360d1faf7bf28b3ca4fa29c4a927211df5cf0. 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/JPKI08075579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0783f029d17fea1fa6ff21369a966d5589fa0cb5679e86f5e7b5a90769e7dcec. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/JPKI08075580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fdfb528ec0f94a6bca57c653ade1117f00a35b88f63995681702a142c713c2. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/JPKI07971137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252eb5e30fa880d485a99d15928665bbd1e5586a77573759afbcb2115100d398. 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/JPKI09128490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbeb52a94aa4ffdf593920190fe79137141a217c80a243d98c34e5695a57c420. 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/JPKI01418364.
BULLET CLUB､マイケル･エルガン､髙橋ヒロム のテーマ
ウィル・オスプレイ、ファンタスティカマニア のテーマ
高橋裕二郎、ゲリラズ・オブ・ディスティニー のテーマ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bff668c76dd3d8a1dccb47e7c1300f67251091d7202b582eeb87791a4682e8f. 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/JPKI01620800.
覇道～後藤洋央紀のテーマ - ロング･プロローグVer.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef5f2b339ac777b47bf8cbe213db8b4c953d1dd3d864862aed9340af87fd53f. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:16:38Z), 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/JPF701700401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b92b7a0cd48020ea7e3d061bb0e40ab7c0750ba81967cd55544e8b2be96d35. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/JPKI01620799.
LOVE & ENERGY ～Hiroshi Tanahashi ENTRANCE MUSIC～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed53dfe5d84caead9320aafda70fa982439b1de9cacce246210d29662a24cd60. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:38:31Z), 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/JPKI01713621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4996b1afd957dcc96291f44846ff5030d3b8290401050512ff17f84ddfdf2478. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/JPKI01811163.
棚橋弘至のテーマ「LOVE & ENERGY-DRIVE-(20th ver)」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6e23a69d25fd0e1633e95f7224867938fe7d16591809422afef66b6c2fb19e. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPKI01910498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddcf49dba6b5118eec6459f0a9ab8d975e08d870cf29a68969ef2786835dc77d. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:53:02Z), 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/JPKI01910499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9283195c38905269c576ee31f46b6edb45385e2d06673384809f3cba9ab853e9. 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/JPKI01910500.
石森太二(ボーンソルジャー)のテーマ「BONE SOLDIER」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78de32dc742d39ba8f35bd3a31f7e043bb60082b723a94fa4d5e1510fd00be52. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/JPKI01910502.
Rain Maker(20130104Ver.)(Kazuchika Okada theme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b70f1ba59921b68177566ac1970971fc0e5623fe0468eb7a39803d8b947c055. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/JPKI01315362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd207e54c42e536cce5cabeb035f97d58273a4b07b2af455f8b7acf7a3e2ed750. 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/JPKI01217492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9324458540984fa8e117768cd7c7fc64b99c5fa7596256bb2dc7eb076d1084. 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/JPKI01315364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9445d483c0ec3eafba20a44f0a2462294afadbc0157ea57651b5662fd320034a. 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/JPKI01217482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf33c2eb05b138afc38ed528a497d4e9e20c5a1e4d5888bb05a283b054c7a788. 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/JPKI01217493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed3c00b05d5e7df09e2773aaab1710374703b36aa3ba19a15536d628c7ffb0a. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/JPKI01217494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0462dc56504dfd2f0eeb8cdfdae05e565042f3d51e1e24488f5c803ad89a41f. 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/JPKI01217501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1196ae5a2b5152a1a6a1b18835ede67d82ed282b31a96530a9ceb9988724be9. 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/JPKI01315366.
Against rules -Solid version-(Takashi Iizuka theme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a76e093af561cfabf4e59c59bf61c14ba0a2c00bbc81d40ae1c77eac885384. 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/JPKI01315372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbeb52a94aa4ffdf593920190fe79137141a217c80a243d98c34e5695a57c420. 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/JPKI01418364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e5d0123f5ad18eef8b04cacc3031f7fbf8e42d828f8ccd6fe4e4ec9630e23b. 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/JPKI01418367.