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 0x98fc083362998e9ab02b9245b4b12d67ce25bf586c8377402762af5454e5444f. Chain 2 (Bitcoin): anchored in block 953662 (2026-06-14T17:28:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5648a4cb-37b1-426a-900b-b0ba0ffc04d2.json and https://artists.proofprofile.net/proofs/artist/5648a4cb-37b1-426a-900b-b0ba0ffc04d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
She Wolf (feat. Abha) [Falling To Pieces]
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 0xf0ec1432ed7a731c77efbf0d8cad8e724f11c3f2746d212144a25b5ce38dbe04. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/CA9G41200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1319672eede2a4e9d3c9cfa5bd343a4fa080e470299e0674c3cdb3159234ef. 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/USV291415011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b61a6de7707b06fcb8974cb5c3da4e373d5aca20b08963c7dfba38d2059d71. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USV291415012.
Liondub Street Series, Vol. 41: International
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883c6deb86523e3e5584444a10d1d9787123f98c2399a6873f39fc5708364323. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/GB8KE1850191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428d5f9b1142802762b2aba7e701793d07f20cb82e0ec467a8e37b4b2a1c269f. 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/GB8KE1852990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5a591429d856cc2f0deb835f3ae2b4af698c09b76c188be6368a8dbbfe9479. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GB8KE1852991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a37c6361ccd6793bbf9637a21ac3906138ee8842a22323ab01286d8b076f357. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GB8KE1653122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9372687495282391e417fa37ebbdfb0f6606f6312cc179ea0ca2050e6084ccab. 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/GB8KE1755574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdffa6b55f7fb6b0b5cfaf1b126476332fddad0c44ab2b14c36616bc91f3205f6. 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/GB8KE1755575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b73a8d4ce739ce90426a7a64d038abd48f74de8646848398a5bafbe7f194c8. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/CA9G41200005.