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 0xe2c3a849d1c8628531c50df2d4aab29434b3acdbf8d8bc50e4d107484ad0aeee. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5721ffed-ac1d-4ea8-a3fc-6be7c136b618.json and https://artists.proofprofile.net/proofs/artist/5721ffed-ac1d-4ea8-a3fc-6be7c136b618.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 0x18dec249ae0e5995bdb7113e8251a0f8dad00845d2a6eb6e06c176ed7c6a162a. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZTB32459690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f430e5420050f0b50c2b447eb96a47ad2d5073f6794a1a782106ab269331a6. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZTB62427263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c57c86093f4ef8f2b7e0624f0c13d5461bfd566dfaaf771d3355d9d2b298345. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZZ7W2407044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300f34b2dbfdca0ba38978a0da221a716972329f117e1a5ab491838f55e4f6bc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZHN62532394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6869734226ff0a53b39e2677c2c6547435c529a4dfa5e77ed5cd64ddaa4e78. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZWFL2467090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b15bb7ef5f907b7e9575d451cc0a5716f930e16abd72a260aee98a1a971955. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/QZFYX2534579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c57c86093f4ef8f2b7e0624f0c13d5461bfd566dfaaf771d3355d9d2b298345. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:55:20Z), 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/QZZ7W2407044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18dec249ae0e5995bdb7113e8251a0f8dad00845d2a6eb6e06c176ed7c6a162a. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:20:01Z), 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/QZTB32459690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08f0608505a38381e058eaa786f6f8f0304695ea5f4df8a621b42fd094e994a. 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/QZES82565288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfacf5f0fc3a747552c99165b8d9c89e2254d99553bc82fb465e6b04c44efcb48. 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/QZDA82526807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f430e5420050f0b50c2b447eb96a47ad2d5073f6794a1a782106ab269331a6. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZTB62427263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef3ef0215d34f9b9606864c495b0aebc42c12ba91ee66d7bbe758c7b0c2295d. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZHN52583278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4daac733c5b7525bd9d7f983b7d06062fd0635cc6a40397280a262c747e0c50c. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZK6P2554630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14709e58430f757e2affb904b284386abe4a2a15f542ac517a16c2192ccc8a58. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZTAT2543621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad55b2243b5eed6b345b52b57c838e58c9873f423ebea5e63e052fcdaa1d725. 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/QZTB52571758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b935a6a323cbaf7e8d02a4a176dab1e4f64e5945d5a4f3de2182c38d3ae8a7. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZWFG2561092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7a9101d99f14e05c954c4ed2da89d463e0faef990a81bee458536470bbec9b. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZWFS2578472.
EEK-POP (Searching For The Truth, Stress Relief)