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 0xd74093d3a9b938bfae0728f3e933641c91bb028ad489a9641c10a6bf46c1f94c. 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/2cf594aa-7fb9-4b1a-8b16-9d121d2c2cc7.json and https://artists.proofprofile.net/proofs/artist/2cf594aa-7fb9-4b1a-8b16-9d121d2c2cc7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
アイロニックマイロジック (feat. つずな)
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 0xff294978929830cf346127ca3c57b371119f88eccc7349ae48be38d2f93ca4a2. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:31:35Z), 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/TCJPJ1931898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318ed2a3cde43bd5370d4f4788eb8803fb11d770a9d84a332f84ff629015feb3. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/TCJPJ1931905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d28f427ce55475bf864cc3ac5dd7e2ee6f2e6249eeddb13fb9d675f89489c0. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/TCJPJ1931896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b77e002fa3b61198ed698c2858933462b0fe374827c4098b48f0da6edea734. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCJPM2075963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa658b36254180f2ef1e823946f9634604a4b6d1c93ccac60a989eb8fef1def11. 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/TCJPM2075967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280d9c0ecc96fa80afc3ee6edf98f79a5207e4d9f3fa96a68051ea4c72f8ca76. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:03:49Z), 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/TCJPM2075968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f8d645b6bccaa5520df901615b8392f739f8ede2bb5f68ed210de615caeffd. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCJPM2075964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadacca22a59c1c902763215e87144696b9429d89b53cf0227b06b06b777fe945. 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/TCJPO2151999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b2997cd7e7c5f44c72338a29a4387a327f7d84304ed590b28e64f7bc310498. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/TCJPO2152005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47f51aec06743c7ada9b32d1c599175ad17051fbbbbc9166e6a4d77b413c80a. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:38:46Z), 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/TCJPQ2116615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e0fc170a0fac8414d8475d1e6b3a85cd37229b5e2f091fdaf41a2ae79d0970. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:04:08Z), 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/TCJPR2262956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f08897fcfacc46f459f1ab85d76010634bbc2a1116184f2c46474e9f910983. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TCJPR2262959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb4cc350348b7b563f5b49c569836e57b6d2c75b21de8f4bbffac25d2bacd55. 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/TCJPS2269283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852aa1e73f0a065d9cf0108eab6ffcb5165084bde22ae379dcf5329d45493ff2. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCJPS2269284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51079728e1dacdf5b9246d81a74aee012a11220173dd9331797608623917d1d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCJPV2357011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf26de876ccb6636ded5e8ced3f472dacf3262cccf7017c8a355947609f9c67e. 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/TCJPV2357020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c7d3df7e189dc25653fbd2d1486f2ea05828fd066d5c6b9b160c27140721e0. 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/TCJPX2365340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d4448ce8a4c00c861a802bfcd81d6b1efec4e2ae29d316208c2438a9440f51. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:09:02Z), 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/TCJPZ2487036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068c115b59f3aaec10b4dfd9aec3099283f21b01998d9d30f6052f38e1f12e60. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TCJPZ2487044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0156fa519ddc7d9dd670d16658b132492b8fa45fdae3fed94f259058568f98. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:49:06Z), 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/TCJPB2433074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f401f4e7df0cb16481cb7880f3e0e5b0fe1131e699301614b01ff0e99e369ff. 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/TCJPC2410602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09533dc33c0948739d6858935b3d1ed4a36d5c17d81f295ee30554d2327e67f8. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/TCJPC2410606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff52e01eea647f9d6ada89562acad564c852c8b70afd24c2e1cd96e6aa2926e. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:24:01Z), 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/TCJPC2410612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb890f06198ce8f71c8a059b6da150a6cb49ce66891be32857cde51e923b75957. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:10:17Z), 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/JP92N2515847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b2997cd7e7c5f44c72338a29a4387a327f7d84304ed590b28e64f7bc310498. 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/TCJPO2152005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4728dc713720ef46e89f787767c65d8ef0a3786fa0d8a871a41c1b85063e66e. 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/JP92N2515848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd803efe3e1b8306af03300d87687507a315464bfc33154ffc51a2811b7a543cc. 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/TCJPO2152002.