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 0xb619edc56031f615f26af5a2ee1d4a642b25328ba794ed0a28f2fac3a6ea3cdd. 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/8e491075-ee44-45b4-b9b7-6cd324780310.json and https://artists.proofprofile.net/proofs/artist/8e491075-ee44-45b4-b9b7-6cd324780310.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 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 0xda42e05caf51573fae2269d88e58acc3fa990ab7162fe33c01994bcb7f732f86. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/THWTD2011600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2d8de6cd8574dce64072bef2f46986643dbb5e420369e5d26fc982609b9972. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/THWTD2127000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13644e7ff4a205a334d374f6c9714c866c16c5807e1f19d35caeccb619961441. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/THWTD2128500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf624150c5d54f3455206e6b8d5f33361c34e1075c6600333667003db3378c784. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/THWTD2204000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6230d8e9cd6b81b66f3f62817317ee0f491938e3acc385f036c3c739ba1fa27b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/THWTD2204100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x505ae7ef49c1712c273e417f8efe73510fc8e174af41c00dbff7740fa33aa779. 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/THWTD2204300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda42e05caf51573fae2269d88e58acc3fa990ab7162fe33c01994bcb7f732f86. 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/THWTD2011600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8913851a0c1aeb9e6ae0d8349fdc3a5a148422186333b417d6b47ac32ec993e4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/THWTD2204600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ffed59ddb9bc702f508709b9f6aa915c435a3fc71355535f60b53c55d4433b. 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/THWTD2215300.
ชาร์จแบตหน่อยยย (My Charger)
ชาร์จแบตหน่อยยย
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93729a13dfb035b5211e65c04e156d10535a299a998ffa5eb506ebb798c648c. 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/THWTD2216500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f715b908f7a1b848bb0b1cdc2aff5bad7b3921f8c71df3279e56938817fd8d. 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/THWTD2318500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb42e42bcfdbf396abebc9d316b6b70833e15d3c1a36079720a863d26b51910. 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/THWTD2408500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae297ff6be0e92f36a53635cf0e4146165eac6d03026824cb16f491b2bfa961. 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/THWTD2421500.
หมอนข้าง (Now that I found you) [Live Version]