1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xddb1f26acb6fa6a9e1daeb27927a130862ac154172270d08584e39e74657a8cd. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba8565e5-e48e-4a54-ae1f-f5b4732f2a49.json and https://artists.proofprofile.net/proofs/artist/ba8565e5-e48e-4a54-ae1f-f5b4732f2a49.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 → block OTSBitcoinBlock must exist at that height 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 0xf279fb6f34cab885c56b7dcd76a6c360a88e7787d17fe51c8eb989f55c0a4eff. 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/US23A1580150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935e8106bd05d970cc08fd7b81fed590ef5855ec0d9ea2c564cf525e35592a26. 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/US23A1585079.
Jóhannsson: They Being Dead Yet Speaketh (from Miners' Hymns), Part 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3347e13f84a7bef26c97b0eaa618eef6d985502545f840dc3532c405b742c876. 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/US23A1583668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2e5936853c3f7ecc2b7c4a56d5ef979528dd3632b195c720a570590513c8d3. 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/US23A1585854.
EMP RMX 333: A Tribute to Else Marie Pade (1924-2016)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c068225ef4f9e3827853cd0a34bb8adc16556c8305b4dce8a015bf8cf0e89b7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DKF9I2300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7646e5e773abc443959c970cb015886dcdd2d269742c3a0f833af99b134011. 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/DKF9I2300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e2f5f47112130acbea59e6fc0b448416acd6705066e04dbb56ecf41feea866. 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/DKF9I2300103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464ee375caaca7aeaeabe6b635df5780670ace2bbcd20fc6c3c53028a74f31d0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DKF9I2300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579d518745a7959df33689f1fe4479ced7b57c1c7fafb0e7c3a8db455d9512ce. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBQT21500189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806cf32386611924ae249e7fa1e41d1cb2149de6ce0c28f4e2e876c12d9669ec. 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/GBQT21500194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b57301ca1ef5363985a36b48a0c02a075e4c47230cea66cd0394a2f0bc874b. 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/UKBVQ1500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d483c16f253b0ab5a18da621118b2fec3d9d1dc38bae5e62e5940186993f8e. 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/DECY51902799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30339d98c6c80bb1c4d1fcc923d10fe0e1bf2f516036ef706aec73943637252d. 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/DECY51902801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e429ec50f293c89612f205cca0394b5260f50e871e2448be2e42e076f8b4ca. 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/DECY51902928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4171f0163b19c2a0a060175cbf83c5449b038c0a55690e5669e0c91fbf2de97. 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/DECY51902930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad7839f2642b7bd843270715d79be3f4ad37076ef71e0595003c2232f1de723. 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/DECY51902932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a91e57a830e8d9d3552eb8f0c69d93ff94a55db83f58557b3078444c65e88e. 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/DECY51902934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1fcf538c230b027beee7aa6a59002a6a4b837aab53b834c1a098c415d42f5e. 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/DECY51902935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e0cd989db06dd401ff568647193c389ec94a9d173f4072416699510ba1c117. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DETB31624053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf573211744f512ae0a01e0f363957a4235b52014f992456d8259de1acbe2e9a0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DKS682000110.