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 0x9b2899f80b2ed6ec611fd3224fa1bd928ec4c430d5fa12058197c387318d37b0. 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/c7c5cd91-a1b0-4c60-ab6e-b760c4722d8e.json and https://artists.proofprofile.net/proofs/artist/c7c5cd91-a1b0-4c60-ab6e-b760c4722d8e.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 0x28aec6ccc67815f82b9d5b1ad226d738f0a69e8bb494ae41358da976d0129700. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPA651904886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7298bef5d249576aaf346782650ab8aea57194bda8b5b1dcb9de4e0ac3a615ac. 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/JPA652005077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b2bcfd8a9dd5f95bd378517e45e9b5484990f805e54125f2446296129ee243. 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/JPX562100156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105d96a2d3e68190942ccf828d48fe2d4e13bbfdd5a213330b5f86c4b99aaad2. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/JPX562100162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aaa0ae46c8edbec1927b5a25d5905b94b4166eee8f5f5c838ea8b10dc2efb91. 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/JPX562100203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6edf86324bafd0c90ac4465670a6ea64999301d50f3c1f9252e7ac4e7a28ded. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:35:22Z), 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/JPX562200522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855843fe38d0772e2fcbce9e0dae71c3e5d23702e7ffd474086f53acb68df5cb. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPX562300539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee143378b478b28ea02f1b91f0a483390a9b25885017d6498c495b513593b9cc. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPX562300550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f56539f9f7d71371a7afcfc56552410f5bd02c61f9a87df32f817b2f517c57b. 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/JPX562300598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8beb7ebcdd730188543d33e82c126a60f907e4acc4bf6112277377ac54d9028. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPX562300601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8beb7ebcdd730188543d33e82c126a60f907e4acc4bf6112277377ac54d9028. 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/JPX562300601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044604c4140af90408e97dc2706f9ef2d692388b1adabcb429caeba8cb69f484. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/JPX562300633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e6370784d0346225c02e6bf35dd8cceb5fcedf42a90cd410eead0d5b281a9a. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/JPX562300729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75faa8add16cd25734d411f665120d2c1d5bd7f9b1628cc14cfd2951a98cfbb6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPX562300740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807a150ababcbfd4c6d5e1467385752e58888904941908328c85611ab7aa0510. 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/JPX562400777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce77c527efa5b195e8acfc812b5e2886d013b00a412ca2834276acc16d5c8db3. 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/JPX562400784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131a4734173ccc434a9c9caddef306e9599b99e6dfaeceb704b11977ec547f6e. 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/JPW462442357.
ファンタスティック・エボリューション
Sana Natori 1st Live “Sanatric Wave” Live Album
名取さなリミックスコレクション Vol.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ddc3bdc814384d2fbb99e13d1a7fcebad29e4a729867ce111a732036e3fd09. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/JP92Y2507650.