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 0xef103c3ef925a1aa962be6aaa65e3b1781d4b8e238107f611834a5251c546c26. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7fc5e410-2378-4c44-920f-27b3144e769d.json and https://artists.proofprofile.net/proofs/artist/7fc5e410-2378-4c44-920f-27b3144e769d.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 0x8b8293fb2d20d2e12cf9f0d985587af30ec29f9f184c7db38d94b98b5bf5451a. 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/JPS801837183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3855f0cf1a8022afc479a6cb23e1d77ea3dd6a8d485fea7c1ec01aa00d494c48. 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/JPS801837185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ed5deea8ed689f9af4d256597224a71f9090ca322bb598b0571aa6cb5a0823. 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/JPS801837188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c843b1f06812a60739e67b3005ec91ea088fbbbc72f16702fcdd1f796692d3. 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/JPS801837189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13589306af20ddd3dd4313e1d25137d502dc59c68f4ce00b07d33d9783aa86f0. 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/JPS801837191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7180beffe75f5094f4a7172db94edab0f082f9cbdb5abb5412fb617b38f59d8. 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/JPS801837195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33b32f4ebe383b1d5ae13e904cddd348930bcd2f485308dd90e419b15e9791c. 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/JPS801837197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8dc61b8d5ed68cd200ae10d1f666a5b7290a51aeb871e3954592235ef15050. 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/JPS801837198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b789424647aa7907a23259206d1a3c708d75c77c3a009c9620ffd2fd10fbd33. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/JPS801837184.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0b8596d7d9ef9a25e103c785c76c906c3c848953c893f54a3e32979829f433. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/JPS801837186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc77e44dcb56476693ee204f40e47b18702bb6853376d45768494b3bcbe8de86. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/JPS801837187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24a7205d28cfde4e5eb01fbc8560ee01fd72fee4777aecd1d6eb4a75a3d9ff2. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/JPS801837190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c4a1e39ba33f1313778343e2091b13a65740069a6fdbc1af98109eb041bb563. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/JPS801837192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892244db07e2b5c4a9aa77c5bca9bc9fedc6c563fe0072a8bce31613ea45600d. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/JPS801837194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9340dc40fa318c870de41c24c69200bba520117a2c3ef01c2c892d49829f09dd. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/JPB602078318.
a little question (Shōtaro Aoyama Remix)
a little question - Shōtaro Aoyama Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2520517820b7963127d1fba121cc2ee5f130ae3bb19e1d1e59d6f1970d997a5b. 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/TCJPS2220393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68331221fac26c91bef9c0c1e874a195182b0f51f110a0e27f8b9c4d1d59696. 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/JP92N2422491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393294699678ebcb5e7c1725e9d13260760ffa16c774a78e9567ca2f60dfef8e. 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/JP92L2205800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76fbd32e47ae4201ece1526d43da472101e6a2231bb13d09915165e908aaaf83. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/JPS801949970.
THE MESSAGE (feat. NAGAN SERVER & DANCEMBLE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb42e1da294345664c9e1ca4422980b413b0ab6b2e2033915a0b67494671607. 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/JPX972314001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d28de6ac3cde49933c1dc0600d543ef5cf3a059ff63420d84029bc86362329. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/JPZ921310788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ecb55c7cad374bc41b5271396bbbd482cecc91094cb6d46c1a9cc276b0da688. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/JPX972314000.