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 0x2e3b364c7a1dd7f2afa444f7ad83b19bc9f720571cfbf812b3218f6c6c9c3649. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e9b4205f-872d-4638-81dc-a2b563e67c67.json and https://artists.proofprofile.net/proofs/artist/e9b4205f-872d-4638-81dc-a2b563e67c67.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 0x476a515589516401abbf1d56ffa360f4c1ef70dca621b85c233b1d0bba0c90b7. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/QZK6H2467578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c633c22d519e1cf9deaef8dd40721e4485505a4a12b2da5e353ab0ab77bcb9. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZMER2460670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f51025a284b1228f2e2642f0a4d0fe08f4d64e4232801672f37de059d654a46. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTAX2452835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0265f27b4aa46985a342705219872568d89eb04e0ad42dfe892147c2bad1c04. 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/QZNWZ2490418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c63952058a9b3ca040a31650be9c700de8d25bd7cc1cf5bb572574ffb3563b3. 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/QZTB62495874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f22bc91332b70281cc903b1c64a88228a5d3d4e7e95db9ae2298eb338adde8e. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZTBD2483361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58b47ce696e534fc1b720a2606f21791762ac300bfb804c3f5a1f871b9c28bb. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZTBF2490030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a5fabd157f7eaabd92450f233b91c52253e25237953819957b560879b7422a. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/QZZ7M2403614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bfb283bf44bffc38733393ca1e0dd8c4673f4b6151cedec06d80402fc1d685f. 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/QZDA42539133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4ddec4050c43855aa49192129e9b88ab5a48e9016ff1086a339cb4fd770ee5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZES82516405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6ce10ae499e7a7fa66e1579138d2b4a60ada445b897df41cb00bd0ba62a238. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/QZK6P2559114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79cd804a5a30bd82c631ea2db52320df14562e14c5661f444c85b93ac6d0b400. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZMEM2523151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d78dc429e56281fe56504e2955737561aa07e5bd5e722b8f08898e5311ee40. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/QZNWT2523897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90362aeb93872a25da9e132ba75afec0db1c9c76aeac3fb0d1f52ce1072b0ada. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZNWZ2544497.
THE NON AI COLLECTION VOLUME 1 (NON AI VERSION)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3deb37da41601eb0cb61f80ea368d1cc8577015945ac3c349e116bb28b835cc. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZWFG2515489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b1a1eff7a70b258fe93c95ac9d61f1e8b46694a7171355500d3883db8cbf8e. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T01:09:53Z), 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/QZWFP2584680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b0864a64885028eaf24360ad966e5c8d7144a239e4c54674551673b81989bf. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZZ7R2521680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d58b09e61d6b870ea7b943ffe23ee5638009754ff3ed349f1c76bde2c13e91d. 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/QZZ7X2584588.