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 0x7c645203c9021fc84be78c4684569448af3195c8f6429f021d6983537b022b3b. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9c45dc5-d94d-4ed8-80e5-73b61fdf9728.json and https://artists.proofprofile.net/proofs/artist/f9c45dc5-d94d-4ed8-80e5-73b61fdf9728.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 0x4961c6d6f1f6f3dfabc0883ae7a17afc1e24302b8a9b6623939d835f1854fb76. 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/QZ8LD1767621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a54a57f259490567668f7b451c938682b4ed4475a42f52ad1109810cd70f5b. 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/USCGH1812850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c792500523b9a6c4f20e3d6a91254e43c2e77c3630c2240b83f9b86b9a7f2a0. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/CAENV1820682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4f0bab74e47fb32986da228748cbb02b56622a31546502cbb11da9d3fa4bfb. 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/USCGH1957769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bed300d1b5e1c626fe472ffa93ee3ea3c9fb3a20fc8594ed57b57a533e0564f. 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/USHM81948907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239a4278f38f0da173b00bbddc88033bf28f03bfff62556654120f2a76dbc637. 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/USHM81948909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd0729d8b971040354ef0ed1dfbe4c78ed4102df9fddb93d37f10ceafc432ad. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T10:59:41Z), 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/USDY42225438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4aca734cb3b9f07871a29ccb9f06709f1da8dcff37755e98d4a5ee857c61209. 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/USDY42272854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf933e5605fc410c606315d14b28a5f795ffeafb5a249554da656f9857bd5d9e8. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:06:47Z), 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/USHM22573809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3283976bf94274dfda04bc2e4b20c28180fdec55c987004637bfa5285bc11bf9. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USHM22573813.
Whispers Beneath the Moonlight (Kompa Gouyad)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c46a82f57d19197444a07a0ebef4a978778d5afbc3a7eb10986ec73c88567f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:06:47Z), 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/USHM22592811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a6e7436280eade70d3837f21baf512f38d195c15aa1ab07bbfa7e2d20b89e4. 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/USHM22592815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd259573655445e53c60c743f7c7e6e04e6d896361a190576fccb29c88a4955. 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/USL4R2550078.