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 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 0xcea06897cc1ee3188c563fcfe25e08f267191396d51c5389f6a4f77991241f70. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3cdc4d8-b2a2-44c1-bd07-6dcc0c0fa330.json and https://artists.proofprofile.net/proofs/artist/b3cdc4d8-b2a2-44c1-bd07-6dcc0c0fa330.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Scenic Route - Road Less Travelled, Vol​​​.​​​ 2
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 0x6f186ccb11518346926acd3eb6ff5cd58bb6b32dc74ecfbad794300870015612. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/UK6822403865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8074945ad5a9c52112b228ed6ee60a49fb26e2720702b0f0967105f42c4eec9a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UK6822412202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67c3b24cfd93c303e155158116b28268438704e5a48fadef31b97ee306aaf7f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/UK6822412203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a28746704031b46c84142567674bf9f45e0aa6d21a9dd278fd7cbc8c1c2ec1. 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/UK6822412201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170a2b07b9866df854e6eb2668fc0cc632d455acd0241cc73f59f6b2569f2cc2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/UK6822403866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f23d76aa9a499b9800f7aabdf46fbec6bd1a321c5b3f8e58870db95d844454f. 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/UK6822412205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3ce2396422da6d08825ef644bf31a0101c0fcfda9b5188a39921aa38307ed3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/UK6822412206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65aa98b005aab8423e02f4f9c55983cba87cf132c77d70c30c3d0e70dfde3804. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/UK6822412209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f94ef39bc21601123926f3e9e0ba0c569d2300bdbd0984c026ae2b01d03f009. 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/UK6822412215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab69de3d7a279d621d60cafed88ee49514b80d106aad0c8205e1f8735a83956. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBCMQ2400403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628162c8138bddc573dfdefc63879fa701a99f6c9dd80310e5c1964a67692e2c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBCMQ2400404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5aaeb081507774aab73f122cc838e188babbdac7aadd163777a1914222a91e8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBCMQ2400405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2757d26fb53fd8194a52b9ffae2b3b50d647d015bf3ac115973a119ce88b0dc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBCMQ2400406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31dba0af68cb2d8c16b233d1094910e57198fb78d08aa5ec9e1271760e6140ae. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBCMQ2400407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacfd81554e85567541eddf0ae9eda51f97e1679c5c40eb2af402134505c8961c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBCMQ2400408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f61fbff22ca41e4f00229019b8bb9a146d0b310afc31e849454f301ecd9f91c. 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/GBCMQ2400409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902aeda88c08b16e11ac470cbba63d5d6921f5d176ca10975d01df39d323cca4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBCMQ2400410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00210c4bee9f4b7f41838a165708fa1ebecd5ef03c51cd36ebf140f9fc71760. 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/GBCMQ2400411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697be2ea0fcd61daee99dd76f544e1b9d2120bf685442b1bc6514bac38002d1d. 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/GBCMQ2400412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb4197e3900c6fda12905d93e2a3546e2500f036b027676d43e85db9bdbcfd2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/UKH751600056.