Year 169 (CLXIX) was a common year starting on Saturday of the Julian calendar. At the time, it was known as the Year of the Consulship of Senecio and Apollinaris (or, less frequently, year 922 Ab urb
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 0xe4eba9c66d9e94c8a00a850ab4c548f01bf48f4972fdc0d6f663bfe5e150932c. 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/bdf976f4-fa79-44b3-83d8-695e4131105e.json and https://artists.proofprofile.net/proofs/artist/bdf976f4-fa79-44b3-83d8-695e4131105e.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 0x29ee86ae369c83bd5f026ac541bf41d50f2c3cf8853ba2353ce654bce22faaae. Chain 2 (Bitcoin): anchored in block 957833 (2026-07-13T09:36:32Z), 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/UKMKM1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b34b2c4b5472dd79dadfcb442780241b2bd0079f1f758bfa1fbb1d6d26f24c6. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/UKMKM1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1e22e75dd73ed414d9ef8290a6d9f405a7cd783da86659c11a765a3a28c4fa. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:47:08Z), 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/UKMKM1900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a328c087c19fff92095b14528ab23eb6dc26dc451fe757e4c1dee9958d09d5. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:27:28Z), 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/UKMKM1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb57bb4d058fa80a586c571b865555cbab62332daaceb9b0901bd23a3322683. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBLFP2315417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bbdc0c5e5a340cebb9dc708ef418d87af60dfeaeae44c823dd886f4498d2c6. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/GBLFP2315420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dea2f5ba6c793c23145ed549cb6ccea003e30d685b4943bba7be13e3749ef0c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GX3Q92357084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf804867670730a95ac9d55918c828070e5a5fa8608a37dccc63e0d684d98f4d8. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/GX3Q92316218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded6c21c80db5f85c92528ab9c8c05d6eba958b5432ff98fe3183b8156331600. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBLFP2315418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48a62efd7040a64d0554d8170f99dc4df8998dd862ae468ba0927a57a270127. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FRX202269332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bee852251d34939d9c4b71aeb46cc01f5ae26fa637cc98b4753cc73e32fe06d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM4TX2174531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4313895ed95bb1fa603b02c4a9350d7af9ab611e6d3cdd71ede89e41cfe5ff42. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM6N22405945.
Burn One (feat. Loick Essien, 169 & Wretch 32)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb3ab4710d1a77db0eb27ff6070265b3db5f52782e996be94b1b19f0a0a442c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBARL2100292.