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 0x7a9e13d4dcd01dcd4b49a9307a76e68326686c5d93eaa16710b53bf939376da6. 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/b8adbb85-8fc0-46d2-86e2-f7aea4359f24.json and https://artists.proofprofile.net/proofs/artist/b8adbb85-8fc0-46d2-86e2-f7aea4359f24.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 0x19eefd6196cd11103e58e6561efcc8b9d6b310363a5427d80832975c249c1ed0. 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/USQX92003940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc20df82a68cb22b52f4379c1c25da51d6b07cbfcff86a8312485a0a4264b81. 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/USQX92100430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb74a0e31df8aa6b8a535d0e2a29b60a92f52d6d99c37d24f84e0899f5858ef. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/USQX92101719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b34dad1f76505735f6f2c5fd80f2a343dc75a154bec2f3bdeeeb710a45c89bf. 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/USQX92101720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e44dc8160a905837f758505b021895d133476aa34d9c7a84fcc54ea1689c05. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USQX92101721.
I CAN'T DANCE TO THIS (Acoustic Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51855e70631cae5d6287e173e2122627849a8948ba23f9ff5e8419806601c21b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZQAY2357656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14e91e0bd4b23a1fceb24eb3a6eb52f08d43dbebffce7978c1d03fd8c478eb4. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:51:15Z), 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/QZS7J2363234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52cc9d355a02ebce1cbe0235aedd9c9e7aeb358d9d41173e751591458bd527c. 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/QZTLA2424659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8560b527015c6b8715d59d6e2b2980c4b1266ad0f59230445900450a75d27196. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZQAY2475139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e75815420a48e5dc7057e4da51600602cdf59a85ab1d0834f057484507390f. 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/SGB502505929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bdce253c266d1246a9b75a46d6653c9189b17561becd005368049227c2477a. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:48:19Z), 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/SGB502502615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b7d01688f6349079848513543f0460a2e05f0d77267e1beb40de720d19254c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/SGB502500718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b7d01688f6349079848513543f0460a2e05f0d77267e1beb40de720d19254c. 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/SGB502500718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78cb89f620fb6f03cdcce21d65e3a6327e2d2c12157cd5b82d26dac4531ff95. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/SGB502508187.