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 0xccd9a1797614587e14957a7809ac7b9b23a9596f47dfcf8545f3e6532ac638c3. 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/0b1bae46-abbc-45e5-8a14-370fbcc42c12.json and https://artists.proofprofile.net/proofs/artist/0b1bae46-abbc-45e5-8a14-370fbcc42c12.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 0x569372c95918becaf266aacbe89f79a74f4fa75eb73b4a92b00d962dc6528a89. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:04:45Z), 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/QZES82036326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5836ada4be4b6151adcc838a544db79c1cb3c165f796fab4b109082f65452bd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZFZ62187583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7f10b8095190e17d94ab64cb870b5cfa77e7f52de65d2909f68a9634588998. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZFZ62187584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3064cabf871a04aec8b27d6581915afdf3c65f8e51aa6cfd1054a415b3740dd7. 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/QZFZ62187585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1334a806ea309c208c69888f99058495c277aac0511b509a158814a2a967511. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFZ62187586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f5d9c3f757da7783d6576870244332f22a721bb154fbda5452944cfe18b8e3. 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/QZFZ62187587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34741df3be0a7e36100130cc376e0dd57cb400460529e64a31bea2e7e16a90d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFZ62187588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8aabcf8a602bf759273ebd1002c0a5ebc58b68b661ea22fc3a94f935edb61b6. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZES82237084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4c443e6e8fb6ae7a665f69f8b9f92b577220d692873ef2cd2097c97e1c1221. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZDA62477521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bbabf882db4bbfe9607e04aa6d306c5ac85acced7ac906964e7040004a29098. 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/QZDA62477524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4259593bc6951215b5ecbda4a075a325bbf93d404a931ebb044b44b4d42137. 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/QT3EX2504612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd494349d2a6e31d8fdbe0ea5bae4aebfd697bfed75cb807a94034fa5e19b6fa3. 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/QZES62148371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b92813d5b99b0b4b65618f6a3bcaae7fc896234a86b1eea5e0556f24035d9a2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZDA72155916.
Dodging Cases (feat. YoungBull, G2 & PettyPetty)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02920168caaf7874298d270608c2961084b6059f95ac7483a13a9e52b514dd2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCADI1789267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8161afc8d910caca1f0fce117ce5471d116f7b7bb953f92c7425b622b7512747. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFZ22544564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11431a1da191bcd684a4eda91eba3769ff6933cb51dfec096924107ae4c0d5a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CA5KR1939187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efa413fcd05a26754492d7f38fe65f1fa7df950a2457f0f5f277993615338ac. 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/QZK6J2170104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f1361e2965d0fe1cce175daa13d6543d8f4cef6e344729abf06975b1a6d483. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/CA5KR0017583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3703635002a5eb238d2096c77ad1bdcbf1ff23286d8573ade0128581568da83. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/CA5KR1939183.
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