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 0x1a3e5698482fe56fbac915328b6efb6969ce871d455af959659f0bab560a351b. 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/ec6ed56f-1f06-4e06-894b-8896ebd83793.json and https://artists.proofprofile.net/proofs/artist/ec6ed56f-1f06-4e06-894b-8896ebd83793.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 0xfaa9e1447e964ed9bc60c156efb8931db1907035c19a0e32b9633fb515311d5b. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:02:29Z), 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/JPTO09041090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75ea20c4cfdf43f24318e862d013bd4b32b9c59cc3b0675bbf267c933307a09. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPTO08913810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00fdb577aabeb99e7cb8755f5fd7bcc26a4057bab1b6fc9ce5462bc7d1443c82. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/JPTO09030270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47b883098df2155b145c56d3a7eb53e5c8150d1510d603562008ccc9406fcad. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:14:31Z), 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/JPTO09030290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613b82bf09dd5576851278bfe0c67b9e40e38fd4480204a9fd65a8cda15966fd. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/JPTO08913860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02521967c8f1ee1b34978cee21591e81ffa1b74e7266055a3cb2b8882ef6bea6. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:32:55Z), 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/JPES08705310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2834fc4432dfd2e98d05267967b87525979654d1beff6374263d1ea98b4b4995. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:17:54Z), 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/JPES08705320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fdd542db5a1e434c0bcb54c8333d8b958dd7d222d354dcc5ba2efb271e1660. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/JPES08705330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56cdf7f5184162db382cec28875faf36f8662a18e24bca9f05bac675bf373ce8. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/JPES08705340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4c4ec671052e5079d71305d72238b4747d908d3e58d3f3a807a1c50c67e2c9. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:14:34Z), 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/JPES08705350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8e4af0910176c87defdc945294ea462eaf7b0aa47b4250fff697255abfd025. Chain 2 (Bitcoin): anchored in block 957711 (2026-07-12T13:56:57Z), 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/JPES08705380.
ダウン・タウン・ブギ・ウギ・メドレー
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72edeaf5346ae97daa45b4c4994b3bc9a3eaa5ad0a89f9d9b35d97e2b6b85c4e. 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/JPES08705390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0f0d886a71e78c1464e9bdad3092e454116ebc64f89d622dad097667511e1d. 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/JPES08705400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf521bb6d8c175eff3bb1a74902992e661fbb4af430d58fb55c932d36778bf3. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:33:45Z), 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/JPES08705420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61da73f1ae15183d5b4b07b9d6b0fbe267d3d74ac4dcb22e009955617147f9a3. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:10:20Z), 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/JPES08705440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613b82bf09dd5576851278bfe0c67b9e40e38fd4480204a9fd65a8cda15966fd. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/JPTO08913860.
トラック・ドライヴィング・ブギ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b3416ad25401670bc2480661b8712cc65de64acfdef263e730b5c0cf1d0e6e. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/JPTO09252940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9992b5e969650b2c1bf1997368b9a2aa798e16a70418d37869b11ae9ab37760a. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:27:26Z), 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/JPTO08913920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ff022886f6822f05b630a603b12d78c80aac03846fb5546421af9b4086b4d7. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/JPTO08913930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff29dadfb76df36c63d6b997df57d28ce87a33184e94a329ed0694dc246c0898. 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/JPTO09252920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198c905ea8e466e7c893197be2090e28ab70d03d7e02b598cc481c00b735503c. 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/JPTO08913890.