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 0x10868d1581d40ab17b05ba0dc7bb65744e13db1076d25bed6a36f1b53b0fd23b. Chain 2 (Bitcoin): anchored in block 953922 (2026-06-16T09:36:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b7cc862-0a90-461f-93f4-2f6c3b05bbbb.json and https://artists.proofprofile.net/proofs/artist/1b7cc862-0a90-461f-93f4-2f6c3b05bbbb.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 0x119e669e1a47c7c51dfe08ef7ddde2b93d88ff38f2ef889cb48ef0b9820a8836. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QZNMX2254746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fe4c7cf98ce6da2c3c9eecdcc3c0074a36951758a7d5776642d65adeb7791c. 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/QZNMX2254751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae95e2c07c4e2ff211a55ba878fccd7a23617b3a0592c0c7c38388818a0d2156. 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/QZNMX2254752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278ec9ce9f527fcd86525e4d6ee29f785e33aead18a693a17449a61c8ac02cd5. 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/QZNMX2254766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9f6f26aa0bdac795a1a7b0edab1aeee318d8c52b64dabbb7984ee17b36453b. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZNWX2368686.
Yall Thought WE WAS Done but WE Right Back on IT Fytb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9504fe826cb4f20a141f2da1b996b33dbb3a867ad6e2317cc8b77f7864d1a09a. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/GBKPL1969406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48db19bc3841985c27c91ad57d78e133cfd53c0fc57f0f0b1e2b5806c3eb8e01. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZES62264748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17079d55a9b345a47a36ef7df0278533b8f441e74906c7232fff6838e4f0adc2. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZES62264749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5809ed44aebf1e0be3507c44ee2b43fe2ff93b80cf8037fa42f4363cff75e81. 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/QZES62264750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca60c6276fedfd1d40d6b8ae8763ece6db0605fd831e1ca0982973a17ca7d2b. 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/QZES62264751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f360fdcbbfd63da2015159568dba6b711271509bfa1ce169ff7240b704cea8. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QZES62264752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cbc833e2268ee94dc950c8243e21cef1e229c6b2eebf3e48ba8a8c913a5a242. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QZES62264753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43969e51f922e4f591853e7152a28215fb3d8baee536cd7556166e2a57ec9f14. 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/QZES62264754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd9bb4b439cb05c638279ab42efb46a8e69f4812e0a25d337eaf5ee63d86843. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/QZES62264755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dde44b2d41637b3af5a37258db4b3b18b1b174c1406d68d3f61fa5f48d03ea9. 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/QZES62264757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ef6915160238046f3fabe33eefeb2b7721e9b2f07eb6e05713b4431b251330. 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/QZL382339701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0055f957375b1dcd1cb38e1eccd379eb9786ea5c237f31d87021d3aebd3710. 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/QZTAZ2237040.
SUNKEN COST FALLACY (And the Ensuing Pursuit of More)