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 0x234ed1f05de6abed666965ca5bcd37dbac71e6b683baf14cacc1ffd4f62f0313. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2886628-4e82-46a3-af51-34481e39e4c7.json and https://artists.proofprofile.net/proofs/artist/a2886628-4e82-46a3-af51-34481e39e4c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Will You Snail (Original Game Soundtrack)
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 0xe24b32bee5a3223d4bea8550c3fb55f75ba8160a0fda1b76af91cdaad4f616f1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZRP52193364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e93e9e807161b8ca6575fa5d39f9af8bc1f6286b8943203c265f12148761a6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZRP52193372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca6941c1729fbaea5f00cce40cee9eedf6b9f12b89ea45d3e118dc9e68f96f8. 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/QZRP52193373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7da68e0037370fae44c20b09d170c416f33b9083e3043e3cd66f16037b19bc. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZRP52193374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3a13ee7b5a9760adf16df749f9f1609df49f9237539efbac0ca556713a2ac1. 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/QZRP52193375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76544bc153d5e4269ad14da8174936df8a80415e13a3e519f5552068f4ceced. 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/QZRP52193376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952bb2504a0871d18d8d685e0125bbbc2df47dfd847d80ea6e5b2c6b7e7f0a6b. 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/QZRP52193377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c32b0da77ff29ff14ce4bdb9a284b37c7fd56e3aaf9e44e2e397d355b7706b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZRP52193378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd414ed59652f1c51e703643dbcaf2f271e3de9c64d16dc28b6fecdcae7485418. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZRP52193382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971624ab8efc414b5b7ca6eebe5c8194d18d590f107b14c27e3aa902b6204c0d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZRP52193385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd30a40f141b0e2a4de4e5f3f307cf09aee454202bd7d505bf59344bdaf57d48. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QZRP52193365.
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 0x8e94a0b5b32d1eacef0715ab011b1505b606f8be0f0977ae529fe71d6f9c0a58. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZRP52193366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895f536433472e5aab88465ee405dbabe52824e57f1e0ecca16aa516c79898d3. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZRP52193367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9f2db19b8265e7f93188841baf4925d180c27c591cd5d115a3a8cbd9b50eee. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZRP52193368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d3755af1ba0dd67b209a4577f0bb909e895a1490e8b3fda7a23742787bbaceb. 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/QZRP52193369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a1ec74a4417c29d6be2568b6e3013dc064a3356ea8d0d91f535b3f3a9e50089. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/QZRP52193370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114a1d8e71f9736f4ed310103b6082f8d2f16a7f148c66d501ed1cafeb9f882e. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZRP52193379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988742dde212e1d98e0257a36a63b0a2fb7a179fe1e42018b7ac62b45ec2665b. 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/QZRP52193380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5133cee5617d1c2863f9fc61fbbac365681055c648e9545ab8bc2d37507eec9. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/QZRP52193381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72824bd0293e1025e0e48a37b2352f27be6257623842f950e56d232e5bb44c80. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/QZRP52193384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e524a90fa6be0156db4246f944a9c9998bde2db6fceda51d3b843d7d1c31fa. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QZRP52193386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0460d8b15efd6456295ecad7f1d7fe7fb403126653af1220f8ee680db7c98913. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZRP52193387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24443e16a5e6764ab6621fc79316655e75cb36a45ca29aa6ff5302d36a5d56dd. 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/SE62M2333521.